Alternate Heating Systems SE110
Alternate Heating Systems SE110 is a non-catalytic hydronic heater from Alternate Heating Systems with 67% HHV efficiency and a 16,286–121,291 BTU/h output range.
| Appliance type | hydronic-heater |
|---|---|
| Combustion technology | Non-Catalytic Stove |
| Certified fuel | Cord Wood |
| Covered model numbers | SE110 |
| Efficiency (HHV) | 67 % |
|---|
| Heat output (low) | 16286 BTU/h |
|---|---|
| Heat output (high) | 121291 BTU/h |
| Firebox volume | 5.42 cu ft |
| Carbon monoxide | 2 g/min |
|---|
| 25C tax credit eligible (≥75% HHV) | No |
|---|---|
| 2020 NSPS compliant | Yes |
| Currently in production | Yes |
| EPA certification number | 59HH-26 |
What space does the Alternate Heating Systems SE110 suit?
- The 5.42 cu ft firebox puts it in the large-home, overnight-burn class.
- Certified burning Cord Wood — the test fuel closest to real-world firewood.
Similar hydronic heaters
- Fröling Heizkessel und Behälterbau Ges.m.b.H PE1 Pellet 35 (0.68 g/hr)
- Effecta Energy Solutions Komplett III LIGHT 35 KW
- Hardy Manufacturing KB-125 (4.1 g/hr)
- Greentech Manufacturing Crown Royal Stoves 7200E
- Windhager, North America, LLC/ Windhager Zentralheizung Technik GmbH BioWin 350
- Varmebaronen AB Vedolux 350
Frequently asked questions
Is the Alternate Heating Systems SE110 EPA certified?
Yes, the Alternate Heating Systems SE110 is on the EPA's current list of certified wood heaters (certification number 59HH-26) and meets the 2020 NSPS Step 2 emission limits.
Does the Alternate Heating Systems SE110 qualify for a federal tax credit?
No — the federal 25C credit for biomass stoves was terminated for property placed in service after December 31, 2025. The Alternate Heating Systems SE110's certified efficiency is 67% HHV, which did not meet the credit's ≥75% HHV threshold while it existed. State and local incentive programs may still apply — check your state energy office and air district.
Sources
- cfpub.epa.gov (retrieved 2026-07-23)