Solar VS Gas Hot Water Systems – Which is Better?
For those building, renovating, or even those who are looking to upgrade their aging (and expensive electric) hot water system, one of the biggest questions is whether to choose a solar or a gas system. Considering that hot water can account for up to 25 per cent of household energy use, it’s a decision that’s worth some serious thought. Since both energy options are available in Brisbane and Ipswich, Fixzit’s plumbers explain some of the benefits of each to help you make the best choice for you.
About Solar Hot Water Systems
Solar hot water system are generally the most environmentally friendly option and have some of the lowest running costs but may be among the most expensive to install. They operate off solar connector panels and a storage tank.
Via a heat pump, instead of creating the heat itself, heat is transferred from the air to the holding tank. To compensate for rainy days or extended overcast periods, extra supply of hot water can be boosted with either gas or electricity. Electric boosted systems are typically cheaper to purchase than gas boosted systems
What to remember about solar systems:
- For solar systems your roof should have good access to sunlight, and preferably face north for best exposure.
- Most 4 person households need about 2 panels or 4 square metres of collector areas, plus a larger 360L tank. This will ensure there is adequate supply in times of greater use or less sunlight.
- For systems where the tank and panels are mounted on the roof, the roof itself may need to be reinforced or strengthened – depending on the framing and roof type. If access to the roof is difficult this can increase installation costs.
- Solar hot water may cost the most to install, but for busy family households it’s an option suited since they can quickly recover their costs more quickly, especially in warmer parts of the country like Queensland.
- About Gas Hot Water Systems
- Gas hot water systems are another popular option especially in areas where there is a direct supply of natural gas or where there is access to LPG (bottled gas.) While not as efficient as solar, gas hot water systems are around 30 per cent more efficient than regular electric systems. Like appliances in the home, a star rating system is used to measure their efficiency.
If natural gas is connected to your home, the installation costs are around the same as an electric system. Because gas usage doesn’t have time of day issues with heating, a smaller system can be used compared to solar or electric systems and the gas burner can operate as needed.
Instantaneous gas systems are also available which have no water holding tank. They work by heating the water from a gas burner as it flows through a coiled pipe when hot water taps are turned on.
What to remember about gas systems:
- Gas systems replenish hot water quickly therefore smaller tanks can be used.
- Look for systems rated 5 stars and above for best efficiency.
- Indoor and outdoor systems can be used.
- Installation is affordable when existing natural gas is connected to the property
- May be not the best option when LPG must be used since cylinders gas is more pricey and need to be replenished.
Fixzit plumbers can provide the right advice on a range of different hot water systems to suit your needs and your household’s. We can supply and install a more energy efficient system to save you money in the long term. For questions or to find out more, call out plumbing team in Brisbane today on 1300 726 806.
