The HeatMasterSS Best-In-Industry Lifetime Limited Warranty

When it comes to protecting your investment, always take a close look at the warranty. At HeatMasterss, we take warranty very seriously. We’re proud to offer the HeatMasterss best-in-industry Lifetime Limited Warranty. That means you can rest easy knowing your investment is secure.

HeatMasterss stands behind its outdoor furnaces knowing they are free from defects that could cause a leak or malfunction of the firebox or water jacket. It also warrants against corrosion (if water treatment and maintenance are followed according to the owner’s manual) for the life of the furnace towards the purchase of a new HeatMasterss furnace on the following pro-rated schedule.

Warranty Schedule

-Coverage in the initial 5 years is 100%

-Year 6-7 is 50%

-Year 8-9 is 40%

-Year 10-15 is 30%

-Year 16 to life is 10%

-The firebox door has a warranty of 5 years at 100%

-All firebrick used in the furnace carries a 2 year warranty

All steel including housing, legs etc. have a pro-rated warranty for 10 years, with coverage reducing by 10% per year. Any parts not manufactured by HeatMasterss such as controls, limit switches, heat exchangers etc. carry their own manufacturer’s warranty.

Warranty Transfer

Unlike many companies, HeatMasterss also offer a warranty transfer. If a customer decides to sell their unit, the new owner can request to transfer the HeatMasterss Best-In-Industry Lifetime Limited warranty to their name. However, the warranty transfer requires approval from HeatMasterss, water test results on file, as well as an inspection from a dealer which may include a fee.

Follow all the instructions in the owner’s manual to qualify for warranty. Water must be tested and maintained at least once per year, and warranty registration must be on file at HeatMasterss along with a copy of the original invoice.

With proper maintenance and operation you can know your investment is protected for decades to come with the HeatMasterss Best-In-Industry Lifetime Limited Warranty. For more information on our warranty, download an owner’s manual here.


An outdoor wood boiler is an important purchase that often involves a lot of research. It’s also a long-term investment in the independence and peace of mind your family deserves. 

HeatMasterss is a family-owned company that has been manufacturing outdoor furnaces for over 20 years. Our mission is simple; help families achieve heating independence and save money.

If you have any questions or want to learn more, we want to hear from you today.