Short answer: every HeatMaster SS boiler has a limited lifetime warranty on corrosion and workmanship for the original owner. It covers the firebox and other major parts.
What's covered, year by year
- Years 1–5: 100%
- Years 6–7: 50%
- Years 8–9: 40%
- Years 10–15: 30%
- Year 16 and on: 10% for life
- Grates and firebox door: 5 years
- Ash pan: 1 year
- Electronics: 1 year, from their maker
A warranty is only as good as the company behind it. We've sold HeatMaster since 2007, and they stand behind their boilers.