All Solahart solar water heaters are fitted with a gas or electric booster
The booster supplements the energy from the sun and only operates when you need it. You can choose a gas or electric in-tank booster or a gas in-line booster is also available. The hot water from your tank is piped to the in-line booster which senses the temperature and activates if it is less than the set temperature. The in-line booster has a 5 star energy rating, keeping your energy consumption as low as possible.
That means you can enjoy hot water when you want it, even on overcast days or at night.