Direct Vs Indirect Solar Water Heater

Direct circulation systems vs.

Direct vs indirect solar water heater.

These types of water heaters are traditionally the most energy efficient. Of the two types of circulation systems for solar water heaters direct systems or active systems are easier to understand. However indirect heaters are more efficient in other ways. A direct fired water heater can be heated by propane oil or natural gas and has its own burner.

This increases the chance of heat losses in the boiler and associated pipework between the boiler and calorifier. A direct solar hot water system cycles potable water through your collectors where it is heated by the sun and moves throughout your home. Standard direct water heaters don t need to transport water over a distance so in one regard they can be seen as more efficient. From a tank the water flows up through solar collectors and back down to.

Direct fired water heaters are solely dedicated to the job of hot water generation providing a faster heat up and response time compared with an indirect system which is in fact heating water to heat water. Indirect heaters making the decision between these two water heater types can be difficult as each style offers unique benefits. 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. The system is essentially a closed loop that water flows through.