After home heating and cooling, hot water is typically the largest energy user in the American house. Capitalizing on the abundance of sunshine in southern Arizona, solar hot water systems offer a reliable, renewable, and cost effective solution for residential hot water needs.

With current state and federal incentives, solar hot water provides a good return on investment making it an attractive option for many homeowners.

How it Works

TFS installs two different solar hot water systems specifically suited for the Southwestern environment.

Drainback and Glycol systems are designed to be immune to freeze damage and fully operational for 20 years or more. Both systems are active, depending on pumps to move heat exchanger liquid from collector to tank, and closed loop, meaning your domestic hot water is never on your roof.

Drainback System


Glycol system

A drainback system uses gravity to drain the distilled water heat exchanging fluid from the outside system components when not in use. While the sun is shining, the heated water is circulated through the collector and drainback tank, heating your domestic hot water.

During the day, glycol in the collector is heated and circulated in coils through the hot water tank, heating your domestic hot water.