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Types of Gas Hot Water Systems

Gas storage

Hot Water Professionals supply & install a wide range of gas hot water systems.  Our gas water heater range are both innovative and highly efficient and include both gas instantaneous and gas storage tank hot water heater systems.

The average household uses their hot water system many times, every day. For that reason it is important you select the most effective and energy efficient hot water system for your needs.

Hot Water Professionals supply and install quality hot water systems. We only supply known quality brands from major manufacturers.  We have products to suite your requirements.

Gas Storage Tank Hot Water Systems

  • Available in sizes from 90 litre to 170l tanks for domestic installations and larger for commercial installations.
  • Quick recovery units available delivering up to 390 litres of hot water per hour.
  • Lowest supply and installation costs.
  • Medium running costs.
  • The water is supplied at mains pressure, the highest pressure supply of standard hot water systems.
  • Available in 3 to 5 star energy ratings.
  • Carry a 5, 7 or 10 yr warranty on the tank.
  • All other working parts carry a 1 year warranty.
  • Keeps the water heated in the tank at the selected temperature above 60°C.

Gas Instantaneous hot water systems

With an instantaneous or continuous flow hot water system the water is heated as it transfers through the hot water system. As water is heated continuously, the system does not run out of hot water.

An Instantaneous Hot Water system is smaller in dimension than storage systems and smaller in capacity than a continuous flow hot water system.They can be mounted on a wall outside or indoors on a wall or in a cupboard. Additional plumbing restrictions apply on internal gas hot water systems.

Instantaneous and continuous flow hot water systems deliver hot water at a reduced pressure when compared to gas storage (mains pressure).

Standard units can generally deliver adequate hot water to only one tap at a time. When a second tap is turned on, the pressure and temperature of the water will drop.

  • Available with flow rates from 10 litres/minute to 16 litres/minute.
  • Four to five star+ energy efficiency.
  • Endless supply of hot water.
  • Low to medium supply and installation cost.
  • Low to medium running costs.
  • Water pressure low to medium.
  • Systems available for internal and external applications.
  • Units operate with either natural gas (NG), or Liquid Petroleum Gas (LPG).
  • These units are available with a standing pilot light which remains on all the time or with no standing pilot meaning it ignites with a hydro ignition generator when the hot water is opened and water flows through the system.
  • These units do not require a power point.
  • There is a ten year warranty on the heat exchanger (2 year parts and labour; years 3 - 10 years parts only).

Gas Continuous Flow

Gas continuous flow hot water systems are similar to Instantaneous Hot Water Systems except they are powered by gas and electricity and are usually more reliable and offer larger flow rates than instantaneous hot water units. Features of the continuous flow hot water systems are:

  • Available with flow rates from 12 litres/minute to 32 litres/minute.
  • Multiple units can be connected together for larger houses or commercial installations.
  • Five to seven star energy efficiency models are available.
  • Endless supply of hot water.
  • Water saving ring mains with pumps can be installed. This avoids water wastage while you wait for hot water to flow through the taps.
  • Optional temperature controls panels (key pads) are available for all models.
  • Accesories such as recessed boxes, pipe covers, security brackets and cages are available.
  • Medium to high supply and installation costs.
  • Economical running costs.
  • Water pressure medium to strong.
  • Systems available for internal and external applications.
  • Units operate with either natural gas (NG) or Liquid Petroleum Gas (LPG).
  • These units ignite with an electronic ignition meaning there is no standing pilot light
  • A power point is required to operate the electronic features of these systems.
  • There is an available ten year warranty on the heat exchanger, 3 year parts and labour on all other working parts. Warranties do vary between brands. Please confirm.

Gas Solar Hot Water Systems

Water heating accounts for about 30 percent of an average household's total greenhouse gas emissions and about the same proportion of total household energy use. Installing a solar water heater can greatly reduce your energy bills as it will use energy from the sun to heat the water at zero cost.

Using solar energy to heat water produces few harmful greenhouse gas emissions. A solar water heater can provide between 50 percent and 90 percent of your total hot water requirements, depending on the climate and the model of heater.

The upfront cost of a solar water heater (including installation) is higher than electric or gas hot water systems but energy bill savings will compensate for this over time. Also there are available government rebates and incentives which reduce the cost of installation.

Most solar hot water systems use solar flat panel collectors or evacuated tube collectors to absorb energy from the sun. Water is heated by the sun as it passes through the collectors. It then flows into an insulated storage tank for later use.

Gas Boosted Solar Hot Water Systems is:

  • The most energy efficient hot water system.
  • Emits the least green house gasses.
  • Save on average between 50% to 90% on your hot water utilities dependant on usage.
  • Available in tank sizes from 160 to 330 litres.
  • Systems supplied with 1-4 solar panels or 10 - 44 evacuated tubes. Larger systems are available for commercial systems.
  • Available with gas boosters ranging from 18 litres/min to 32 litres/minute.
  • Gas booster units continually produce hot water.
  • Supplied in either a close coupled system where the panels and tank are on the roof or split system where the collectors are on the roof and the tank is on the ground. The booster can be installed on the roof but it is usual for the booster to be at ground level.
  • High supply and installation costs.
  • Lowest running costs of all hot water systems.
  • Rebates apply, conditions apply.
  • Water pressure medium to high.
  • Warranties available from 5 to 10 years.
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