HeatMaster Furnaces P4000
HeatMaster Furnaces P4000 is a non-catalytic hydronic heater from HeatMaster Furnaces with 82% HHV efficiency and a 17,944–147,388 BTU/h output range.
| Appliance type | hydronic-heater |
|---|---|
| Combustion technology | Non-Catalytic Stove |
| Certified fuel | Wood Pellets |
| Covered model numbers | P4000 |
| Efficiency (HHV) | 82 % |
|---|
| Heat output (low) | 17944 BTU/h |
|---|---|
| Heat output (high) | 147388 BTU/h |
| Carbon monoxide | 0.21 g/min |
|---|
| 25C tax credit eligible (≥75% HHV) | Yes |
|---|---|
| 2020 NSPS compliant | Yes |
| Currently in production | Yes |
| EPA certification number | 56HH-25 |
What space does the HeatMaster Furnaces P4000 suit?
- Certified burning Wood Pellets .
Similar hydronic heaters
- Alternate Heating Systems Wood Gun E155 (5.09 g/hr)
- Central Boiler Inc.- WoodMaster Central Boiler Classic Edge 360 (2.1 g/hr)
- WoodMaster CleanFire 300 (Central Boiler Classic Edge 360) (2.1 g/hr)
- Hawken Energy GX Series GX 10 (2.2 g/hr)
- Hardy Manufacturing KB-165 (3.9 g/hr)
- Effecta Energy Solutions Smart 40
Frequently asked questions
Is the HeatMaster Furnaces P4000 EPA certified?
Yes, the HeatMaster Furnaces P4000 is on the EPA's current list of certified wood heaters (certification number 56HH-25) and meets the 2020 NSPS Step 2 emission limits.
Does the HeatMaster Furnaces P4000 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 HeatMaster Furnaces P4000's certified efficiency is 82% 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)