Solar Thermal Hot Water Heating

Solar Thermal Hot Water Heating

If it was possible to capture all of the energy generated by the sun we could meet the daily energy demands of the world. Solar hot water heating systems are a great way to collect some of this free energy, save money, and reduce pollution. Solar domestic hot water heating makes great economic sense since it can be used 12 months a year.

Solar hot water systems consists of four main components: storage tank, solar panels, circulator and a control. The storage tank generally contains two coils, which are used to transfer heat to the domestic hot water. The first coil is attached to the solar panels and the second to a supplemental heat source, such as a boiler. The circulator moves a water/antifreeze mixture from one internal coil in the storage tank to the solar panels on the roof. The solar panels heat the water/antifreeze mixture and return it to a coil in the storage tank to heat the domestic hot water.

At night or on cloudy days, a secondary coil tied into a supplemental energy source might be necessary to produce sufficient domestic hot water. Generally, the solar system can produce two thirds of the annual energy demand for domestic hot water.

Hart & Iliff is a distributor and installer of Roth Solar Systems. Roth Solar Equipment is made from the finest quality materials, has a 95% adsorption rate and comes with a ten year warranty. If you have questions or would like a price to install a solar hot water heating system call us at 973-383-1421.

Solar Panels

What Our Customers are Saying

These are unsolicited comments received from Hart & Iliff customers.

"Heating system is working well now. Very courteous service technician. Thanks."


A.H., Andover, NJ

"Thanks for all your help and patience. This was large undertaking for me. I appreciated all your professionalism."


B.C., Sparta, NJ

"We are very pleased with the service you gave us in fixing our air conditioner. Each person who came to home was understanding and sympathetic to the situation at hand. The number of days and long hours the team worked during the one of the hottest summers on record, far exceeded our expectations. Thanks to all who worked to get our air conditioner back on-line."


C.B., Newton, NJ