Hot Water Systems: Instant Gas Hot Water Heater Systems • Instantaneous LPG Gas Hot Water Systems • Storage Hot Water Tank Systems – Gas Hot Water Heater System Prices - Instant Gas Hot Water System Price

Hot Water Systems: Get great Rinnai gas hot water system prices...

Hot Water Systems & Hot Water System Prices

Instant gas hot water systems prices typically range from $735 to $1575, depending on the system water flow rate required. Gas hot water systems prices (gas water heater prices) go from about $830 for 135L gas hot water tank prices to $1475 for a 360L gas water heater prices.

Electric instant hot water system prices typically range from $700 to $1450 for instantaneous electric hot water heater prices, depending on the number of showerheads simultaneously used. Electric hot water heater prices go from about $475 for small 25L storage hot water system prices to $1950 for 400L hot water heater prices.

Compare hot water systems and gas water heater prices, perfomance, longevity and value with other gas water heating systems for sale. These include instant hot water system unit, gas hot water tank (gas hot water cylinder), electric hot water systems unit, solar hot water systems, heat pump hot water unit and gas water heater prices (gas hot water heater prices).

The best hot water systems are arguably a gas instant hot water systems, which is unrivalled for their reliability, durability, gas hot water heater cost of operation, water heater price and value for money available in both a natural gas hot water unit and LPG instant gas hot water system.

Hot Water System Prices

There are three main factors affecting hot water system prices: capacity or flow rate, energy performance and the type of hot water system selected.

1. Hot Water System Capacity or Flow Rate

Storage tank hot water system prices are based on capacity.  The larger the capacity, the higher the price. Tankless continuous flow hot water system prices are dependent upon the flow rate in litres per minute or gallons per minute. Once again, the higher the flow rate the higher the tankless hot water system prices.

It's easy to understand why this is, as larger units have more materials and larger components.

2. Hot Water System Energy Performance

Hot water system prices are also affected by its energy performance.  Generally speaking, the higher the energy star rating the higher the hot water system prices.

There is a rationale for this, as the technology to achieve better performance is costly.  For example, condensing tankless hot water heaters have a second heat exchanger to capture the heat of the exhaust gases.

3. Type of Hot Water System

More complex hot water systems attract higher hot water system prices. For example, solar hot water systems are the most expensive because they have solar panels, booster systems and storage tanks, plus all the plumbing to tie it all together. Heat pump systems have an entire heat pump system attached to the storage tank. Not coincidently, these are the two most expensive types of hot water systems with the highest hot water system prices.

Gas Hot Water System

A gas hot water system uses a gas burner to heat the water to the required temperature. A gas hot water system comes in two general types: storage tank gas hot water system and instantaneous (instant) gas hot water system and water heater prices from $735 to $1575 gas water heater prices.

Storage tank gas hot water systems are a steel cylinder with a gas burner at the bottom with gas hot water systems prices from $830 to a $1475 gas water heater price (gas hot water tank prices).

An instantaneous gas hot water system (instant gas hot water system) is a tankless hot water heater that warms the water as it passes through a serpentine heat exchanger at a flow rate of 10 to 32 litres per minute, whilst providing a virtually endless supply of hot water. A 6 or 7 Star rated instantaneous gas hot water systems saves energy, money and reduces CO2 output. Instant gas hot water systems prices range from $735 to a $1575 natural and LPG gas water heater price.

Hot Water Heater Systems Prices & Gas Water Heater Prices
Water Heater Price by Type
 Typical Min  Water Heater Price 
 Typical Max  Water Heater Price 
 Water Heater Price - Electric storage tank  $475  ≈25L  $1950  ≈400L
 Water Heater Price - Electric Instant Hot Water System Prices  $700 to  $1450
 Gas Water Heater Prices - Gas Hot Water Heater Tank Prices  $830  ≈135L  $1475  ≈360L
 Gas Water Heater Prices - Instant Gas Hot Water System Price  $735 to  $1575
 Water Heater Price - Solar Water Heater Price - Electric  $3600 to  $5,000 and over
 Water Heater Price - Solar Water Heater Price - Gas Water Heater Prices  $4900 to  $6500 and over
 Water Heater Price - Heat Pump Hot Water Prices  $3300  ≈160L  $4000  ≈315L
 Gas Water Heater Prices - Continuous Flow Instant Gas Hot Water System Price  $735 to   $1575
 New natural gas water heater prices & LPG gas water heater prices are indicative estimates. 
 Actual gas water heater prices may vary.

Hot Water Heater Prices - Gas Hot Water Heater Prices - Hot Water System Installation Cost

Hot Water Heater Systems Prices & Gas Water Heater Prices Installed
Water Heater Price by Type
 Water Heater Price Range
  Water Heater Installation Cost 
 Water Heater Price - Electric storage tank  $475 to $1950  $250 to $700
 Water Heater Price - Electric Instant Hot Water System Prices  $700 to $1450  $250 to $1500
 Gas Water Heater Prices - Gas Hot Water Heater Tank Prices  $830  to $1475  $300 to $750
 Gas Water Heater Prices - Instant Gas Hot Water System Price  $735 to $1575  $300 to $1550
 Water Heater Price - Solar Water Heater Price - Electric  $3600 to $5000+  $2000 to $3500
 Water Heater Price - Solar Water Heater Price - Gas Water Heater Prices  $4900 to $6500+  $2000 to $3750
 Water Heater Price - Heat Pump Hot Water Prices  $3300 to $4000  $1000 to $2500
 Gas Water Heater Prices - Continuous Flow Gas Hot Water System Price  $735 to $1575  $300 to $1550
 Hot water heater installation cost will vary with the complexity of the hot water installation.
 Water heater prices are indicative estimates. Actual water heater prices may vary.
 Hot water tempering valve, if you need one, will also add about $250 to the cost.

Gas Hot Water Heater Systems Prices: Gas Water Heater Prices - Hot Water Tank Prices - Instant Gas Hot Water Heater System Price - Instant Water Heater Price

Gas Hot Water Systems Prices - Instant Gas Hot Water System Price Gas hot water systems prices (gas hot water heater prices) go from the cheapest gas water system prices at approximately $735 for a small instant hot water system price to a $1575 instant gas hot water systems price for high flow rate condensing natural and LPG gas water heater prices.

Gas hot water system prices for a gas storage hot water system go from about $830 for a 135L gas water heater prices to a $1475 gas hot water tank prices for a 360L gas water heater price (gas hot water heater prices).

Instant gas hot water system prices (instant water heater prices) are based on the flow rate, expressed in litres per minute, of the instant gas hot water system. Condensing instant hot water system with 7 stars will also have a higher instant gas water heater price. The higher the flow rate or star rating, the higher the instant gas hot water systems prices.

Instant hot water system sizing required is based on the maximum simultaneous gas hot water flow rate of the shower heads and taps.

The highest tank gas water heater prices are for a 5 star rated hot water unit, making it lower new gas water heater prices of operation than other storage hot water systems but higher new gas water heater prices to operate than a 6 or 7 star instant gas water heater price.

Instant water heater price is effectively less expensive than the new gas water heater prices of operation of any other gas hot water system because they have 6 or 7 star gas hot water system energy efficiency ratings, making the new gas water heater cost cheaper to operate.

Instant Gas Hot Water System Price - Instant Hot Water Systems Prices - Examples

  • Instant Gas Hot Water System Price - Instantaneous Gas Hot Water Systems Prices

    Rinnai Infinity 26 Gas Hot Water Systems Prices: Rinnai Infinity 26 Price: $1310

  • Instant Gas Hot Water System Price: Rinnai B26 Price: $1,055.00

  • Rinnai Infinity Instant Gas Hot Water System Price: Rinnai Infinity 20 Price: $1195

  • Instantaneous Gas Hot Water Systems Prices: Rinnai Infinity Enviro 32 LPG gas water heaters prices: $2,695

  • Instant Gas Hot Water System Price: Rinnai B20 Price: $1,005.00

  • Instantaneous Gas Hot Water Systems Prices: Rinnai Infinity 16 Price: $985

  • LPG Instant Gas Hot Water Systems Prices: Rinnai infinity 12 LPG gas water heater prices: $900.00

  • Instant Gas Hot Water Systems Prices: Rinnai Infinity 26 Touch Price: $1620

Gas Hot Water Systems Prices - Gas Water Heater Price by Flow Rate

The following is a chart showing the range of gas water heater prices by approximate flow rates for instantaneous hot water. Some differences are because the comparison includes regular and condensing models, with a secondary heat exchanger. There are also other features that may be unique to a particular model:

Gas Hot Water Systems Prices - Water Heater Prices by Flow Rate
Gas Hot Water Systems Prices
Gas Water Heater Price by Flow Rate
Approximate Instant Hot Water Flow Rate Low Range Gas Water Heater Price High Range Gas Water Heater Price
12 litres per minute: $736 $950
16 litres per minute: $650 $1035
20 litres per minute: $635 $1055
26 litres per minute: $779 $1360
32 litres per minute: $1795 $2795

Hot Water Systems

Hot water systems use an assortment of heating methods to provide reliable hot water unit in your home, including gas, electric, solar or heat pump units. A hot water system is available as either an instantaneous unit or storage hot water tank unit.

Instant systems (tankless continuous flow) heat water instantly and only as required. Hot water storage tanks heat the water constantly fuelled by gas, electricity or off-peak electricity for a higher new water heater price of operation.

Gas hot water systems are sometimes referred to as gas instant hot water boilers.

Hot Water System Prices Confusion

Hot water system prices can be confusing. Water heater price is first divided by energy source, with gas hot water systems prices, electric hot water system prices, solar water heater price and heat pump water heater prices.

Gas hot water systems prices are further divided by LPG gas water heater prices and natural gas water heater prices. LPG gas hot water system prices and natural gas water heater prices are typically the same for the same model. For an example, LPG storage tank water heater price would be the same as natural gas water heater prices.

Gas water heater prices are also divided by tank water heater price and instant gas hot water system price (instant hot water systems prices), also referred to as continuous flow natural and LPG gas hot water systems price.

Then, just to add more confusion to gas hot water prices, they refer to gas hot water systems prices and gas water heater prices. In this regard, “system’ and “heater” are synonymous.

Gas Hot Water Systems Prices for Rinnai Hot Water Heaters for Sale

The following are some gas hot water heater systems for sale and examples of gas hot water system prices:

  • Rinnai Infinity 26 Gas Hot Water Systems Prices: Rinnai Infinity 26 Price: $1310

    • With $100 Worth of Bonus LPG Gas Credits*

  • Instant Gas Hot Water System Price: Rinnai B26 Price: $1,055.00

  • Rinnai Infinity Price : Rinnai Infinity 20 Price: $1195

    • With $100 Worth of Bonus LPG Gas Credits*

  • Continuous Flow Gas Water Heater Prices: Rinnai Infinity Enviro 32 LPG gas water heater prices: $2,695

  • Gas Water Heater Prices: Rinnai B20 Price: $1,005.00

  • Gas Hot Water Systems Prices: Rinnai Infinity 16 Price: $985

    • With $100 Worth of Bonus LPG Gas Credits*

  • LPG Gas Hot Water Systems Prices: Rinnai infinity 12 LPG gas water heater prices: $900.00

  • Gas Hot Water Systems Prices: Rinnai Infinity 26 Touch Price: $1620

    • With $100 Worth of Bonus LPG Gas Credits*

  • Gas Water Heater Prices: Rinnai Hotflo 170L LPG gas water heaters prices: $1075

    • With $100 Worth of Bonus LPG Gas Credits*

  • Instantaneous Gas Hot Water Heater Systems Prices: Rinnai B16 Price: $935.00

  • Sunmaster System 3 -  Solar LPG Gas Hot Water Systems Prices: $4,250.00

  • Sunmaster System 52 -  Solar Gas Water Heater Prices: $4,755.00

  • Sunmaster System 55 -  Solar LPG Gas Hot Water Systems Prices: $5,145.00

  • Sunmaster System 12 -  Solar Gas Water Heater Prices: $5,650.00

*T&Cs Apply  Bonus LPG credits only apply to purchases of LPG gas hot water heater systems for sale

Natural Gas Water Heater Prices - Best Natural Gas Water Heater - LPG vs Natural Gas Price

Natural gas water heater prices go from the cheapest natural gas hot water heater prices at approximately $735 for a small instant hot water system price to a $1575 instant natural gas water heater prices for high flow rate condensing gas water heater prices. Natural gas water heater prices go from about $830 for a 135L storage hot water system to $1475 for a 360L new natural and LPG gas water heater cost.

Instant gas hot water system prices (instant water heater prices) are based on the flow rate, expressed in litres per minute, of the instant gas hot water system. Condensing instant hot water system with 7 stars will also have a higher instant water heater price. The higher the flow rate or star rating, the higher the instant gas hot water systems prices. Instant gas hot water system price typically range from $735 to $1575, depending on the system water flow rate required

Regarding LPG vs natural gas price, all gas hot water system brands for sale give you a choice of either natural gas hot water system (mains gas) or LPG gas hot water heater systems for sale at a similar new hot water heater cost.

New natural gas hot water heater prices and LPG gas water heater prices include two main hot water unit types: gas instant hot water system or gas hot water tank (gas hot water cylinder). The greater the instant hot water systems flow rate or gas hot water tank capacity, based on your needs, the higher the LPG or natural gas water heater prices.

LPG Gas Water Heaters Prices

Natural Gas Water Heater Prices - LPG Gas Water Heater Prices

LPG gas water heaters prices go from the cheapest LPG gas water heaters prices at approximately $735 for a small instant hot water system price to a $1575 instant LPG gas water heaters prices for high flow rate condensing gas water heater prices. LPG gas water heaters prices go from about $830 for a 135L storage hot water system to $1475 for a 360L new hot water heater cost.

Instant gas hot water system prices (instant water heater prices) are based on the flow rate, expressed in litres per minute, of the instant gas hot water system. Condensing instant hot water system with 7 stars will also have a higher instant water heater price. The higher the flow rate or star rating, the higher the instant gas hot water systems prices. Instant gas hot water system price typically range from $735 to $1575, depending on the system water flow rate required

Regarding LPG vs natural gas price, all gas hot water system brands for sale give you a choice of either natural gas hot water system (mains gas) or LPG gas water heaters prices for sale at a similar new hot water heater cost.

New LPG gas water heaters prices and gas water heater prices include two main hot water unit types: gas instant hot water system or gas hot water tank (gas hot water cylinder). The greater the instant hot water systems flow rate or gas hot water tank capacity, based on your needs, the higher the LPG gas water heaters prices.

Electric Hot Water System Prices vs Gas Water Heater Prices - Gas vs Electric Hot Water

Gas water heater prices are typically a bit higher but a gas hot water heater systems for sale is typically less expensive to run than electric hot water heater prices. The slightly higher initial gas water heater prices are recoved within a year or two.

Hot water heater system prices for electric water heater price vs gas water heater prices is a case where new water heater price and running costs are the major factors to be considered. 

This makes gas water heater prices much more economical over the lifetime of the gas hot water system water heater price.

Hot Water System Prices - Instant Electric Hot Water System Water Heater Price

Instant electric hot water heater system prices range from $700 to $1450 water heater price, depending on the electric instant hot water systems flow rate, measured in litres per minute. The higher the flow rate the higher the instant hot water system price.

An instant hot water system are tankless. They provide and heat a continous flow of hot water on demand.

Hot Water Heater System Prices - Electric Hot Water System Prices, Hot Water Heater Tank Prices, Hot Water Heater Cylinder Prices

Electric Hot Water System PricesTank water heater price (hot water heater cylinder prices) start around $475 water heater price for a small (25L) electric hot water heater system prices to about $1950 for large (400 L) electic hot water heater system prices - tank water heater price.

Hot water tank style electric hot water system are the classic hot water tank (hot water cylinder) seen for decades in Australian homes. Tank water heater price is a bit lower than the tank water heater price of gas hot water heater systems prices (natural and LPG gas water heater prices).

Hot Water Heater System Prices - Heat Pump Hot Water Heater Price

Heat Pump Hot Water PricesHot water heater system prices for a heat pump hot water heater unit start at around $3500 water heater price for a smaller (160 L) heat pump hot water heater for sale to hot water heater prices of about $4,700 for a large (315L) heat pump new hot water heater cost.

A heat pump hot water heater unit works on the same principle as a split system air conditioner in heating mode, except heating water instead of air. 

Gas Solar Hot Water System Price vs Electric Solar Hot Water System Price

Solar Hot Water System PriceGas hot water heater systems prices for a small gas boosted solar hot water cost starts at around $4,900 water heater price and go to over $6,500 for a solar new hot water heater cost.

Electric hot water heater system prices for a small electric boosted solar hot water cost starts at around $3,600 water heater price and go to over $5,000 solar hot water heater system price for a electric boosted solar hot water system water heater price.

Solar hot water systems capture the sun's heat in either solar hot water panels or evacuated tube solar hot water systems.

For cloudy or cold days, they have a booster in either a gas boosted solar hot water or solar electric boosted hot water system.

Cheapest Gas Hot Water Heater System Prices - New Gas Hot Water Heater Cost

One of the cheapest gas hot water heater system prices would be for a Bosch 12L/Min Continuous Flow Hot Water at $710 water heater price.  The cheapest gas hot water heater system prices are not always the best choice. You need to look at capacity, reviews, ratings, energy efficiency, reliability and the manufacturer's warranty to determine if the cheapest gas hot water heater system prices (gas water heater prices) are the best value gas hot water heater systems for sale. For example, a Bosch 12L/Min may be too small for all but one shower homes.

When looking for the cheapest gas hot water heater system prices (gas water heater prices), it is important but pay close attention to the instant gas hot water star ratings and estimated annual new gas hot water heater unit cost (new hot water heater system cost) of operation.  Remember when looking for cheapest gas hot water heater system prices that you will likely have the gas hot water heater systems for sale for at least ten years. So, to determine the real new gas hot water heater unit cost, you must take into account any annual gas hot water heater cost (new hot water heater system cost) savings multiplied by ten.

Everybody wants the cheapest gas hot water heater systems prices (gas hot water heater prices) but some new gas water heater cost more money in the long run, based on the new hot water heater system unit cost of operation.

About the Hot Water System Prices Shown Above

All of the gas hot water systems prices and electric hot water system prices shown above are all indicative estimates and vary by plumber, gas hot water system brand, gas hot water heater systems for sale and the area in which you live.

Hot Water System Cost of Operation - Hot Water Heater Cost - Gas Hot Water Heater Cost

Hot water system cost (new gas hot water heater cost) of operation can vary by as much as $510 water heater cost per year. Your new hot water heater system cost is, in most cases, more important than the initial hot water system prices.

Electric storage hot water systems, on a normal day tariff, have a new hot water heater system cost to operate of as much as $510 hot water heater cost per year more than a gas hot water heater cost. The following chart, courtesy of Sustainability Victoria, shows the electric and gas hot water heater cost for a family of two using 90 litres per day.

Electric storage on a normal day tariff are the most expensive hot water system cost of operation, at $585 to $740 hot water heater cost per year vs instant natural gas systems at $230 to $260 hot water heater cost per year. So, electric storage on normal day tariff is as much as $510 hot water heater cost per year more hot water heater cost to operate. This quickly erodes any initial installation or hot water heater cost of purchase savings.

Hot Water System Prices - Annual Electric & Gas Hot Water Heater Cost of Operation

Annual Hot Water System Cost of Operation - Gas Hot Water Heater Prices - Costs
Type of Hot Water System Annual Hot Water System Cost Energy Star Rating
 Gas Water Heater Prices - LPG Storage Cost $465 to $560 4-5½
 Gas Water Heater Prices - LPG Instant Cost $355 to $405 5½-7o
 Gas Water Heater Prices - Natural Gas Storage Cost $290 to $350 4-5½
 Gas Water Heater Prices - Natural Gas Instant Cost $230 to $260 5½-7
 Water Heater Prices - Electric Storage - Day Tariff Cost $740  N/A
 Water Heater Prices - Electric Instant - Day Tariff Cost $585  N/A
 Water Heater Prices - Electric Storage - Off-Peak Cost $575  N/A
 Source: Sustainability Victoria         Copyright © 2019. Elgas Ltd

Hot Water System Installation Cost - Gas Hot Water Heater Installation Cost

Hot Water System Installation Cost - Gas Hot Water Heater Installation Cost

Hot water system installation cost for a like-for-like hot water unit replacement in the same spot will typically cost between $250 and $700 water heater price. If you move your hot water unit to a different location, the gas hot water heater installation cost could be between $1000 and $2500 water heater price, depending on the distance from the existing pluming and the electrical work required.

If you are switching from an electric to a gas hot water system, the new gas hot water heater unit installation cost would typically be in the $1200 to $3000 water heater price range, again depending on the distances from the water and gas supply, as well as any required electrical work.

The hot water system installation regulations include tempering valve regulations that now require hot water tempering valves, to protect against scalding. Your plumber will make a hot water tempering valve adjustment to make sure your tap temperature does not exceed 50°C. If you don't already have one, this will also add about $250 water heater price to the cost. These are not needed on instantaneous hot water units.

New hot water heater system installation cost depends on your plumber. There can be huge variances in what different gas fitters charge for gas hot water heater unit installation cost. Gas hot water unit installation requires a plumber who is also a gas fitter.

It is wise to get 3 quotes for your gas hot water heater installation cost.  You should also compare gas hot water systems prices (gas water heater prices) for the hot water unit itself.

It pays to shop around!

Gas Hot Water System Types

Gas hot water systems for sale come in 3 major gas hot water unit types. All 3 types of gas hot water heater systems for sale come in LPG (propane) units and natural gas hot water system models from numerous manufacturers including Rinnai, Rheem, Dux and Bosch. The 3 types of gas hot water systems (gas water heating systems) units are:

  1. Instant gas hot water systems: These tankless instantaneous gas hot water systems heat the instantaneous hot water as it passes through the hot water system, reducing instantaneous gas hot water heater system cost to operate. Instant gas hot water systems prices range from $735 to $1575 gas water heater prices. Gas hot water units are available in natural gas water heating systems and LPG gas hot water heater systems for sale.

  2. Gas hot water tank (hot water cylinder): This is the traditional gas hot water tank (gas hot water cylinder) that stores a quantity of ready-to-use gas hot water. Tank gas water heater prices range from a $830 to $1475 water heater price. These gas hot water units come in up to 5 stars so have a slightly higher gas hot water heater system price to operate. They are available in natural gas water heating systems and LPG gas hot water heater systems for sale.

  3. Gas boosted solar hot water systems: Solar hot water systems are solar panels with a instantaneous hot water booster, for nights and cloudy weather. Solar gas water heater prices range from $4900 to over a $6500 water heater price. These have the lowest gas hot water heater system cost to operate. They are also available in natural gas water heating systems and LPG gas hot water heater systems for sale.

Available in natural gas hot water unit and LPG bottled gas models.

Tankless Instant Gas Hot Water Systems

Tankless instant gas hot water systems for sale provide a continuous flow of instantaneous hot water, in natural gas water heating systems or LPG gas hot water system models with various instantaneous hot water flow rates to match demand and save on LPG instant gas hot water system price to operate. Tankless instant gas hot water systems prices range from $735 to $1575 gas water heater prices.

Instant hot water systems only heat up the instantaneous hot water as it passes through the gas hot water unit, saving on the instant gas hot water system cost of operation.

Instantaneous Gas Hot Water Systems - instantaneous gas hot water systems for sale are a tankless instantaneous gas hot water heater systems that provides instantaneous hot water on demand whenever you turn on the gas hot water tap, helping you save on cost of instant gas hot water system price of operation, too.

  • Some call them instant hot water units or instantaneous hot water units whilst still others just call them tankless instantaneous hot water systems or instantaneous hot water heaters

  • You can buy them in either natural gas water heating systems and LPG gas hot water heater systems for sale

  • You save money on instant gas hot water heater system unit cost to operate, as these instantaneous hot water systems only heat the instantaneous hot water you need

  • Optional instantaneous hot water controllers enable temperature control and gas hot water unit auto bath fill

  • Instantaneous hot water systems are tankless, wall mounted and compact gas hot water units

  • Optional gas hot water unit temperature control of your instantaneous hot water unit in different rooms

  • You get instantaneous hot water on demand with Instantaneous gas hot water systems

  • Never run out of instantaneous hot water again!

  • Very competitive continuous flow gas hot water systems price (gas water heater prices)

Instant Gas Water Heater Manufacturers

The majority of instant gas water heater manufacturers make good products. Rinnai, Rheem, Dux and Bosch have all been making instant gas water heaters for many years and have refined the designs over time to where most are now 6 to 7 star rated. The following are the leading instant gas water heater manufacturers:

  • Rinnai

  • Rheem

  • Dux

  • Bosch

  • Thermann

Rinnai, one of the world’s leading instant gas water heater manufacturers, has decades of experience and state of the art technology to manufacture high quality and reliable instant gas water heaters that are arguably the best on the market.

Gas Hot Water Tank - Gas Hot Water Cylinder

Gas hot water tanks (hot water cylinder) heat and store gas hot water.

The gas hot water tank (hot water cylinder) consists of a gas hot water system tank or gas hot water cylinder with a thermostatically controlled gas burner in the bottom, that heats the gas hot water tank, and insulation to help keep it hot in between heating cycles and reduce gas hot water system unit cost to operate, controlling your total hot water tank prices (hot water cylinder prices). Tank gas water heater prices range from a $830 to $1475 water heater price. They are available in natural gas water heating systems and LPG gas hot water heater systems for sale.

Gas hot water tanks are floor mounted and come in various gas hot water tank sizes, depending on the anticipated gas hot water demand.

Gas hot water tanks have an energy efficient gas water heater tank cost of operation (gas hot water cylinder cost), particularly if you choose one of the new 4 or 5-Star gas hot water tank models, and they have much lower greenhouse gas emissions than an electric hot water systems and generally lower gas hot water system cost of operation.

Gas Boosted Solar Hot Water Systems

A solar hot water unit with gas hot water system boost can have some of the lowest gas hot water system cost of operation and greenhouse gas emissions, with the sun as the primary heat source. 

However, this gas hot water system for sale is typically the most expensive water heater price to buy and install, with the solar gas hot water system price (gas hot water heater prices) as much as 4x the gas hot water tank prices (gas hot water heater prices). Solar gas water heater prices range from $4900 to over a $6500 water heater price.

A solar hot water system is equipped with a instant gas hot water system booster, for periods without sufficient sunlight. They are available in natural gas water heating systems and LPG gas hot water heater systems for sale.

Gas Hot Water Heater Manufacturers - Instant Gas Water Heater Manufacturers

Gas hot water heater unit manufacturers include Rinnai, Dux, Rheem, Bosch and AquaMAX. Rinnai, Dux and Rheem would be considered the leading instant gas water heater system manufacturers. They all make both natural gas water heating systems for sale and LPG gas hot water heater systems for sale.

Instantaneous Gas Hot Water Systems Prices

 Gas Hot Water Heater Prices

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See gas hot water prices and purchase gas hot water online 

How an Instantaneous Gas Hot Water System Unit Works

Schematic of continuous flow hot water heaterIn summary:

• Cold water flows into the instantaneous hot water heater when a gas hot water tap is opened inside your home.

• The water flow is detected by a sensor that ignites the gas burner, to heat the gas hot water in the heat exchanger.

• The instantaneous hot water typically follows a serpentine pattern through the heat exchanger, absorbing as much heat as possible.

• An electronic gas hot water control unit modulates the gas burner to maintain a set instantaneous hot water temperature.

• They operate as either natural gas hot water and LPG gas hot water systems.

See all the details on:

How an Instantaneous Gas Hot Water Heater System Works

Hot Water System Sizing?

The hot water system sizing information available is very confusing because manufacturers, and others, are trying to provide a simplified answer to a complicated question. 

Some suggest that you calculate by the number of bathrooms in your home while others say to go by the number of people in your family. 

Also, in many cases, their recommendations are based on the worst case scenarios, assuming higher consumption than your actual water use.

Buying Too Large a Hot Water System Wastes Money 

Many people end up buying a larger instantaneous gas hot water system unit than they actually need. The gas water heater prices will be higher when they buy the hot water system and will increase the ongoing operating costs, in many instances.

Hot Water System Factors to Really Consider

Simultaneous use of the hot water system is one of the fundamental determining factors.  

The number of people in your home combined with how and when they use hot water is the key. 

  • Do they all take showers at the same general time of day? 

  • Do they take showers simultaneously in different bathrooms?

  • Do the showers have WELS 3 Star Rated water saving shower head (maximum 9L/Min) or standard 18 to 25L/Min showerheads?

  • Do some prefer baths, which use more hot water? Is the bath or spa oversized, requiring even more hot water?

  • Do you run the washing machine, using hot or warm water, while people are showering?

  •  Is your dishwasher connected to the cold or hot water? If hot, do you use it while hot water is being used elsewhere?

Showers Are the Key with Hot Water System - Water Saving Shower Head

Assuming you have a 3 Star water saving shower head and you mix in some cold water with the hot, the typical hot water consumption would probably be in the 7 litres per minute range.  The use of WELS (Water Efficiency Labelling and Standards) 3 star rated water saving shower head is an important factor in saving water and energy whilst reducing the size and cost of the hot water system required

Showers use the most hot water in a home. People generally shower for 5 to 10 minutes.

If you also assume an 8 minute shower, water saving shower head will consume about 56 litres of hot water per shower or a hot water heater size for family of 5 would consume 280 litres. 

Hot Water Heater Size for Family of 5 or Hot Water Heater Size for Family of 4Rinnai HOTFLO 170 gas hot water system

The hot water heater size for family of 5 is 280L. Hot water heater size for family of 4 is 224L. In the above example, with water saving shower head, if all five people take their showers in the morning, you would need a hot water tank system with 280 litre first hour capacity, regardless of how many take showers at exactly the same time.  

Similarly, hot water heater size for family of 4 you would only need a hot water tank system with 224 litre first hour capacity, regardless of how many take showers at exactly the same time. 

This all presumes that you are not using any other hot water devices at the time.  

The use of additional hot water, after the shower period, would depend on the hot water system’s recovery time required to achieve full temperature.  

So, with a larger family or house guests, a bit of scheduling may be required to avoid the need for a larger unit.

Off Peak Electric Hot Water System Issues

Off peak electric hot water systems are a completely different story. Inasmuch as off peak electric hot water systems only heat water at night, they need to be quite large to make sure you don’t run out of water during the day. 

So, some of the electric savings is offset by the fact that you need to heat a larger hot water tank (hot water cylinder). 

The bigger hot water tank (hot water cylinder) would also cost more to purchase.

Instantaneous Electric Hot Water System

Instantaneous electric hot water systems suffer from the peak electricity tariffs. As instantaneous electric hot water systems are used during the peak hours, with no storage tank, they do not take advantage of off peak rates.

So, virtually all of the use would be during the more expensive peak periods.

Instantaneous Gas Hot Water System Unit Example

Bosch 21e tankless gas hot water systemFor a tankless instantaneous gas hot water heater systems unit, it would depend on how many showers are being used simultaneously. 

Using the example above, if it’s two showers, then you only need a gas hot water unit with a minimum gas hot water flow rate of 14L/min. 

If you have 3 people showering at exactly the same time, you would need a minimum 21L/min of gas hot water.  

This does assume that you are not using other hot water devices simultaneously. 

Recovery time is not an issue with continuous flow gas hot water units, so even a large family with guests would not run out of hot water.

 

If you are switching from electric hot water unit to LPG gas hot water, please see:

 

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