About the Therma-coil

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

Some simple thermosiphon systems often pay for themselves in one season (a 100% annual return on the investment). Conventional water heaters cost money every month for their lifetime in addition to their initial cost. Therma-coil 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 with a Therma-coil. Woodstove water-heating also compliments solar systems perfectly by contributing hot water during the marginal solar times of the year.