About the Therma-coil

Water heating is the 2nd largest utility load in a home after heating/cooling. Woodstove water-heating is a logical way to reduce utility costs for woodstove users. Therma-coil is a stainless steel heat exchanger placed in the stove firebox where consistent heat is. Made of heavy-wall stainless steel pipe, Therma-coil has no joints and mounts securely with gaskets sealing the stove-wall penetration against smoke leakage. Early materials used for heat exchangers were unsuitable for long life in today's high-temperature woodstoves. That's why Therma-coil uses the highest grade 304L stainless steel with a simple mounting method to insure many years of safe, trouble-free service.

Our amazing Warranty!

Therma-coil Products will replace any TC-01ss exchanger purchased through our website to the original purchaser and returned to us if it EVER fails in service for ANY reason! We can offer this extraordinary warranty because our product is "bulletproof"!

Therma-coil exchangers are "bulletproof"!

Here's why:

1. Made of heavy wall 304L stainless steel. 304L stainless steel has good resistance to oxidation in intermittent service up to 1600 F and in continuous service to 1700 F. with a melting temp of about 2600 F. Normal woodstove temperatures range from about only 500 F. to about 1200 F.

2. No welds or joints to corrode and break down over time.

Therma-coil exchangers save you money!

Simple thermosiphon systems often pay for themselves in one season (100% annual return on investment). Conventional water heaters cost money every month for their lifetime in addition to their initial cost. Woodstove hot water saves you money every month you use it. As utility prices go up, you are assured of at least one part of your winter costs to remain low. Woodstove water-heating also compliments solar systems perfectly by contributing hot water during the marginal solar times of the year.