Direct Vs Indirect Solar Water Heater

The main difference between direct and indirect solar hot water is the type of fluid used to collect heat in the system.

Direct vs indirect solar water heater.

In an indirect system solar energy is collected and held in a special antifreeze fluid. Indirect water heaters take advantage of an existing heating source for power thus they can save a lot of money over the long run. Duda solar 200l active split system gallons. The system is essentially a closed loop that water flows through.

However indirect heaters are more efficient in other ways. The antifreeze is circulated into your hot water storage tank which heats water for use in your home. Indirect solar water drainback systems are also a indirect design that use a heat exchanger to separate the collector loop from the potable water. Direct systems heat water right from the sun while indirect systems use a different fluid to transfer heat from your collectors before heating your water.

There s more on the types of solar water heaters here lasts about 20 years. Indirect solar hot water. 50 more efficient than gas electric water heaters. A direct fired water heater can be heated by propane oil or natural gas and has its own burner.

They need less maintenance than a direct model due to having fewer parts and often have superior insulation negating the need for a water heater blanket. Direct circulation systems vs. These types of water heaters are traditionally the most energy efficient. Active indirect the high points.

Solar water heating systems include storage tanks and solar collectors. Traditionally indirect systems are more successful nationwide than direct systems because of their resistance to cold. An indirect storage tank is heated through the boiler this requires your boiler to get up to temperature to heat the water properly. Indirect heaters making the decision between these two water heater types can be difficult as each style offers unique benefits.

There are two types of solar water heating systems. Indirect solar water heating systems circulate a fluid typically a mixture of water and glycol in a circuit between the rooftop thermal collector and a heat exchanger that actually warms the potable water. Active which have circulating pumps and controls and passive which don t. From a tank the water flows up through solar collectors and back down to.

Standard direct water heaters don t need to transport water over a distance so in one regard they can be seen as more efficient. A direct solar hot water system cycles potable water through your collectors where it is heated by the sun and moves throughout your home. Instead of relying on glycol for freeze protection this system allows all the water in the array to drain back from the array and into a storage vessel in the solar loop when the pump is turned off. Duda is known in the solar water heating industry as being a reliable and high quality brand they are srcc certified and can be used for federal or state tax credits and.