Hot H2o
1800 689 919
LIC # 233926C
1800 689 919
Hot H2o
  • Home
  • Hot Water
    • Electric
    • Gas
    • Heat Pump
    • Solar
    • FAQ
  • Pool Heating
    • Pool Heat Pumps
    • Pool Evaluation Form
  • Repairs
  • Recent Jobs
  • About
    • Our Company
    • Testimonials
    • Community
    • Payment Options
  • Contact
    • Blog
  • Facebook
  • Instagram
  • Menu Menu

Gas

Gas Hot Water Systems

Gas hot water systems burn either natural gas delivered via a piped network, or LPG, which is bottled. They can be a good solu-tion depending on your circumstances—for example, if you live in an area with limited sunlight for a solar hot water system or if a heat pump hot water system is not suitable.

Gas hot water systems generally produce far less greenhouse gases than electric water heaters. They generally also have lower upfront costs than solar or heat pump hot water systems. However, if you don’t have natural gas connected to your home you will need to get a mains gas connection or use bottled gas (LPG). Depending on how much hot water you use, LPG may be more expensive to run than natural gas.

Types of Gas Hot Water Systems

There are two main types of hot water systems:

Gas Storage Hot Water Systems

Storage heaters use a gas burner located under the storage tank to heat the water. They usually have a pilot flame that burns continuously and lights the main burner when it’s needed. Systems installed indoors need a flue.

Continuous/ Instantaneous Hot Water Systems

In an instantaneous system or continuous flow system there is no storage tank and the water is heated as required. The water is heated by a gas burner as it flows through a coiled pipe called a heat exchanger. The gas burner starts when a hot water tap is turned on. It only heats the amount of water that is required instead of continuously heating a full tank.

Storage Tanks

A storage tank should hold a one day’s supply of hot water, the Gas storage tanks come in 135 and 170 litre. For help with selection please contact our free call number 1800 689 919 or you can simple fill in the quick quote form and we will be in touch within 1-2 hours (within business trading hours).

Dux

Dux gas storage hot water storage tanks come in 135 and 170 litre storage capacities and come with 10 years warranty.

*Please look at the system model you require for exact warranty conditions. Warranty conditions apply.

Download Brochure (PDF)

Rinnai

Rinnai gas storage hot water storage tanks come in 135 or 170 litre storage capacities and come with 8 years warranty.

*Please look at the system model you require for exact warranty conditions. Warranty conditions apply.

Download Brochure (PDF)

Rheem

Rheem Gas Storage Hot Water Systems

Rheem gas storage hot water storage tanks come in 135, 170, 265, 295, 330, and 360 litre storage capacities and come with 10 years warranty.

*Please look at the system model you require for exact warranty conditions. Warranty conditions apply.

Download Brochure (PDF)

Vulcan

Vulcan Gas Storage Hot Water Heater

Vulcan gas storage hot water storage tanks come in 135 & 170 litre storage capacities and come with 7 years warranty.

*Please look at the system model you require for exact warranty conditions. Warranty conditions apply.

Download Brochure (PDF)

Thermann

Thermann Hot Water Gas Heaters

Thermann gas storage hot water storage tanks come in 135 & 170 litre storage capacities and come with 7 years warranty.

*Please look at the system model you require for exact warranty conditions. Warranty conditions apply.

Download Brochure (PDF)

Aquamax

Aquamax Gas Storage Hot Water Heaters

Aquamax gas storage hot water storage tanks come in 270, 340 & 390 litre storage capacities and come with 12 years warranty.

*Please look at the system model you require for exact warranty conditions. Warranty conditions apply.

Download Brochure (PDF)

Instantaneous Units

An instantaneous unit come in 16L, 21L, 26L and 32L/pm. For help with selection please contact our free call number 1800 689 919 or you can simple fill in the quick quote form and we will be in touch within 1-2 hours (within business trading hours). *L/pm = Litres per minute

Dux

Dux instantaneous units some in 16, 20, 26 and 32 litres/per minute capacities and come with up to 12 years warranty.

*Please look at the system model you require for exact warranty conditions. Warranty conditions apply.

Download Brochure (PDF)

Rinnai

Rinnai Instantaneous units comes in 16, 20 and 26 Litre/Per minute capacities and come with up to 12 years warranty.

*Please look at the system model you require for exact warranty conditions. Warranty conditions apply.

Download Brochure (PDF)

Rheem

Rheem Continuous Hot Water Heater

Rheem Instantaneous units comes in 16, 20, 26 and 27 Litre/Per minute capacities and come with up to 10 years warranty.

*Please look at the system model you require for exact warranty conditions. Warranty conditions apply.

Download Brochure (PDF)

Tempering Valves

A tempering valve mixes your hot and cold water to deliver hot tap water at a constant temperature. Tempering valves have a temperature sensitive element which adjusts the mix depending on the temperature of the incoming water flowing through the valve. The valve is designed to maintain a constant outlet temperature, reducing the risk of accidental scalding. The regulation in NSW is 50ºC for all bathrooms and 45ºC for childcare and elderly care facilities. Your tank temperature setting at the thermostat must be a minimum of 60c. This prevents bacteria and diseases growing. The average temperature of domestic hot water is 70 ºC. A much safer temperature for domestic hot water is 50 ºC. This is because water at a lower temperature takes longer to cause injury. For example:

  • At 60 ºC, it takes one second for hot water to cause third-degree burns
  • At 55 ºC, it takes 10 seconds for hot water to cause third-degree burns
  • At 50 ºC, it takes five minutes for hot water to cause third-degree burns

For more information on the Tempering valve requirements please click here to see Fair Trading NSW fact sheet

Request a Quote

    Google Reviews

    Hot H2o
    Hot H2o
    5.0
    Based on 10 reviews
    powered by Google
    Donna Wood
    Donna Wood
    23:42 09 Apr 20
    Our hot water system was leaking & we phoned Lee at 3.45pm on Thurs 09/04. After sending through photo's he called us... immediately to discuss our problem & arrived at 7.45 am on Good Friday with a replacement system & installation.Job well done,friendly service & we were very happy with his work..Highly recommended!read more
    Janette Genner
    Janette Genner
    02:52 24 Mar 20
    Awesome service from first phone call to tradesman that fitted the hot water system. Rang at 10am and system was... installed at 2.30pm the same day - would highly recommend A+++read more
    Markus Capilnean
    Markus Capilnean
    01:51 20 Feb 20
    Thankyou Lee for your help and advice. All fixed with minimal fuss.
    Ward Duvall
    Ward Duvall
    21:04 16 Dec 19
    Responsive, knowledgeable, helpful, reliable and competitive
    Linda A
    Linda A
    05:27 09 Dec 19
    We rang and had a technician at our house within an hour. Lee did a fantastic job. Definitely would recommend to anyone.
    John Bennett
    John Bennett
    02:24 24 Oct 19
    Great service called yesterday installed new hot water today and fair price. Highly recommend
    Chris Ferrarin
    Chris Ferrarin
    06:34 24 Sep 19
    Lee was awesome. I'd had 2 different hot water guys come out in the past 18 months and both did a quick fix, which... didn't last long. Lee actually explained to us what was wrong and told us our best option, instead of just putting a band aid on the problem, charging us and saying it'll be sweet. I'm definitely going to continue using this company when needed.read more
    Kay Watts
    Kay Watts
    22:38 28 Jun 19
    I called at 7.30 am to say I needed a new hot water system. The guys were there by 9am and were finished by 10. The... price was very reasonable. Incredibly helpfulread more
    Alan Coggins
    Alan Coggins
    20:59 23 Nov 18
    Lee and Mark did a great job sorting out my hot water problem. They turned up very promptly and we worked out the best... approach for my situation (which also happened to be the cheapest for me). All work was done carefully and neatly and I was very happy with the price. Had my hot water back the day after I phoned him. No hesitation in recommending them.read more
    Next Reviews

    © 2020 – Hot H2o – The Hot Water Specialist

    Hot H2o Pty Limited
    PO Box 817 Windsor NSW 2756
    info@hotwater2u.com.au
    ABN: 80 101 845 005
    Licence No: 233926C

    Scroll to top