Maine Energy Systems PES 25-32
Maine Energy Systems PES 25-32 is a non-catalytic hydronic heater from Maine Energy Systems certified at 0.8 g/hr particulate emissions with 81% HHV efficiency (previously certified, no longer in production).
Previously certified (out of production). This model appears in the EPA Certified Wood Heater Database but is no longer on the current certified list, which usually means it is no longer manufactured. The specifications below are its certified figures, kept for reference and for owners of installed units. Browse currently certified heaters for models sold new today.
| Appliance type | hydronic-heater |
|---|---|
| Combustion technology | Non-Catalytic Stove |
| Certified fuel | Wood Pellets |
| Covered model numbers | PES 25-32 |
| Emission rate | 0.8 g/hr |
|---|
| Efficiency (HHV) | 81 % |
|---|
| Heat output (high) | 99797 BTU/h |
|---|
| 25C tax credit eligible (≥75% HHV) | Yes |
|---|---|
| 2020 NSPS compliant | No |
| Currently in production | No |
What space does the Maine Energy Systems PES 25-32 suit?
- Certified burning Wood Pellets .
Similar hydronic heaters
- HeatMaster Furnaces G Series G4000 (0 g/hr)
- Heatmaster Furnaces Inc. (SteelTech Inc.) G Series G4000
- Fröling Heizkessel und Behälterbau Ges.m.b.H S3 Turbo 30
- Northwest Manufacturing Woodmaster Mini Boiler (1.4 g/hr)
- Northwest Manufacturing Woodmaster CleanFire 400 (1.04 g/hr)
- Northwest Manufacturing Woodmaster Ultra 30 (1.6 g/hr)
Frequently asked questions
Is the Maine Energy Systems PES 25-32 EPA certified?
The Maine Energy Systems PES 25-32 holds EPA certification number n/a but is no longer on the current certified list — it is previously certified, which usually means the model is out of production. Already-installed units are unaffected by that status in most jurisdictions.
What is the Maine Energy Systems PES 25-32's emission rate?
The Maine Energy Systems PES 25-32 is certified at 0.8 grams of particulates per hour (tested with wood pellets). Real-world emissions depend heavily on fuel moisture and operation — the lab figure assumes seasoned fuel and correct air settings.
Does the Maine Energy Systems PES 25-32 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 Maine Energy Systems PES 25-32's certified efficiency is 81% HHV, which met 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)