Gas Hot Water Systems - LPG & Natural Gas

Get great Rinnai instantaneous gas hot water systems prices...

Get Great Gas Hot Water Heater System Unit Prices

Gas hot water heater systems prices compare favourably with other systems, including electric, solar and heat pumps. The cost of gas hot water heater system unit prices is dependent on the type, size and brand.

The cost of natural gas hot water heater system unit prices are typically the same as the cost of LPG gas hot water heater system prices.The following are different types of hot water heater systems:

  • Traditional storage tank gas hot water heater systems

  • Tankless instantaneous gas hot water heater systems

  • Gas boosted solar hot water heater systems

  • Electric boosted solar hot water heater system

  • Heat pump hot water heater systems

  • Electric hot water heater tanks

Get great gas hot water heater prices…

Gas Hot Water

Gas hot water comes in 3 major types: tankless instantaneous gas hot water, storage tank gas hot water and solar with gas hot water boost. All 3 types of gas hot water come in LPG (propane) and natural gas models from numerous manufacturers including Rinnai, Rheem, Dux and Bosch.

Tankless instantaneous gas hot water systems provide a continuous flow of hot water, in models with various flow rates to match demand. Instant hot water systems only heat up the hot water as it passes through.

Instant tankless units provide hot water on demand whenever you turn on the tap. Instant hot water systems are wall mounted and compact.

Storage tank gas hot water heats and stores hot water. The unit consists of a tank or cylinder with a thermostatically controlled gas burner in the bottom, that heats the water, and insulation to help keep it hot in between heating cycles.

They are floor mounted and come in various tank sizes, depending on the anticipated demand.

Storage tank gas hot water units are energy efficient, particularly if you choose one of the new 4 or 5-Star models, and they have much lower greenhouse gas emissions than electric tanks.

A solar hot water system with gas hot water boost can have some of the lowest running costs and greenhouse gas emissions, with the sun as the primary heat source.  However, they are typically the most expensive to buy and install, costing as much as 4x that of a storage unit.

These solar hot water systems are equipped with a gas hot water booster, for periods without sufficient sunlight.

Gas Hot Water Heater Systems Prices - Instantaneous Gas Hot Water Heater System Price

Gas Hot Water Systems Prices - Instant Gas Hot Water System Price Gas hot water heater tank prices typically range from around $830 for a 135L to $1475 for a 360L. Instantaneous  (instant) gas hot water heater systems prices are in the $1200 to $1575 range, depending on flow rate. 

Natural gas hot water heater prices are typically the same as for LPG instant gas hot water heater systems prices.

Electric hot water system prices are a bit lower than gas hot water systems prices, starting from around $525 for a small storage unit to about $4,000 for storage heat pump models.

Solar hot water heater system prices starts at around $3,600 for a small electric system whilst solar with gas hot water heater system prices range to over $6,500 for a large gas boosted system.

These are all indicative estimates and vary by plumber, brand, model and the area in which you live.

Natural Gas Hot Water Heater Prices - LPG Gas Hot Water Heater Systems Prices

Natural Gas Water Heater Prices - LPG Gas Water Heater Prices The cost of natural gas hot water heater system prices are typically the same as the comparable LPG gas hot water heater system prices.  The natural gas hot water heaters for sale range from around $735 to $1575 for various gas hot water system types, including instant gas hot water heater prices.

Natural Gas Hot Water Heater Prices & LPG Instant Gas Hot Water Systems Prices
 Hot Water System Type  Typical Min Hot Water System Price 
 Typical Max Hot Water System Price 
 Storage Tank - Electric  $525  ≈25L  $1825  ≈400L
 Instantaneous - Electric  $700  $1350
 Storage Tank - Gas Hot Water  $830  ≈135L  $1475  ≈360L
 Instantaneous - Gas Hot Water  $735  $1575
 Solar Hot Water System - Electric  $3600  $5,000 and over
 Solar Hot Water System - Gas  $4900  $6500 and over
 Storage Tank - Heat Pump  $3300  ≈160L  $4000  ≈315L
Natural gas water heater prices & LPG gas hot water heater system prices are indicative estimates.  Actual prices may vary.

Instantaneous (Instant) Gas Hot Water Heater Systems Prices shown above.

Cheap Gas Hot Water Heaters - Cost of Gas Hot Water System

The cost of gas instant hot water heaters for sale is important but pay close attention to the star ratings and estimated annual running costs.  Remember when looking for cheap gas hot water heaters that you will likely have it for at least ten years so to determine the real cost of a gas hot water system, you must take into account any annual savings multiplied by ten.

Everybody wants cheap gas hot water heaters but sometimes they end up costing more money in operating costs.

Natural Gas & LPG Gas Hot Water Systems for Sale at Great Prices

Natural Gas & LPG gas hot water heater systems for sale include two main types: tankless continuous flow or storage tank models. All gas hot water heater system brands give you a choice of either natural gas (mains gas) or LPG gas hot water system at various prices.

The flow rate or tank capacity of a natural gas or LPG gas hot water system is based on your needs.

Whether it's the best selling Rinnai LPG Gas Infinity 26 instant hot water heater, or low cost Dux hot water heaters or the quality Bosch LPG range of gas hot water systems, Elgas has the right tankless LPG gas instant hot water heater for sale at great prices. 

Instantaneous Gas Hot Water Systems Prices

 Gas Hot Water Heater Prices

Instantaneous LPG Gas Hot Water Systems - Tankless Continuous Flow

Instantaneous Gas Hot Water Systems - Tankless Continuous Flow Instantaneous LPG gas hot water systems are a tankless LPG gas hot water system that provides hot water on demand whenever you turn on the tap, helping you save energy, too.  Instantaneous (instant) gas hot water heater systems for sale are also available in natural gas models.

  • Some call them Instantaneous or continuous flow whilst still others just call them tankless or just instant hot water heaters

  • An instantaneous gas hot water unit will never run out of hot water...even when extra guests drop in

  • You save money as these gas water heaters only heat the water you need

  • Optional controllers enable temperature control and auto bath fill

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

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

  • Instantaneous gas hot water units only heat the water as it passes through

  • You get hot water on demand with Instantaneous gas hot water heaters

  • Never run out of hot water again!

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Instantaneous (Instant) Gas Hot Water Heater Systems: How it Works

instantaneous gas hot water systemsIn summary:

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

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

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

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

See all the details on:

How an Instantaneous Gas Hot Water Systems Works

Compare Natural Gas Water Heater Prices & LPG Water Heater Prices

Now you can compare natural gas water heater prices & LPG water heater prices for all the major brands of gas hot water systems including Rinnai, Bosch, Kelvinator, Rheem, AquaMAX and Dux hot water heaters.

Click on your category of interest to compare natural gas water heater prices & LPG water heater prices:

Instant Gas Hot Water System Price (Instantaneous)

Gas Hot Water Tank Prices

Gas Boosted Solar Hot Water Systems Prices

What Size Gas Hot Water System Do I Need?

You can save a substantial amount of money by not buying a hot water system that is larger than you really need. 

You may save on the initial cost plus the ongoing running cost.

Get Hot Water Systems Right and Save Money

When it’s time to get a new hot water system, one of the key questions relates to the sizing or capacity of the unit. 

Hot water accounts for about 25% of the average home energy costs, so it’s important to get this right.

Calculating by Number of People or Bathrooms?

The 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 Systems Wastes Money

The result is that many people end up buying a larger system than they actually need. 

This costs them extra money when they buy the hot water system and will increase the ongoing operating costs, in many instances.

Factors to Consider

Simultaneous use 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 Showerheads (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?

Please also see:

How to Switch to LPG Hot Water for Your Home

Star Ratings for Gas Hot Water Heater Systems

How Long Do 45kg Gas Bottles Last 

Showers Are the Key

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

Assuming you have a 3 Star 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. 

If you also assume an 8 minute shower, you will consume about 56 litres of hot water per shower or a family of four would consume 224 litres. 

The use of WELS (Water Efficiency Labelling and Standards) 3 star rated showerheads is an important factor in saving water and energy whilst reducing the size and cost of the hot water system required.

Storage Gas Hot Water TanksRinnai HOTFLO 170 gas hot water system

In the above example, if all four people take their showers in the morning, you would only need a storage hot water 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

Off peak electric storage units are a completely different story. 

Inasmuch as they 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 tank. 

The bigger tank would also cost more to purchase.

Instantaneous Gas Hot Water Systems

Tankless Continuous Flow Gas Hot Water Systems

instantaneous gas hot water systems: Bosch OptiFlow 26For a tankless continuous flow 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 unit with a minimum flow rate of 14L/min. 

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

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

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

Hot Water Systems Conclusion

In summary, the size of hot water system you need primarily depends upon on your family’s peak usage period and when you use additional hot water, as opposed to the number of bathrooms or people. 

Taking the time to consider your actual usage, before buying, can save you energy and money.

 

 

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

 instantaneous gas hot water systems by a local plumber or gas fitter

 

Rinnai Infinity Gas Hot Water System Deluxe Bathroom Controller