Greentech Manufacturing Crown Royal Stoves 7400E
Greentech Manufacturing Crown Royal Stoves 7400E is a non-catalytic hydronic heater from Greentech Manufacturing certified at 2.4 g/hr particulate emissions with 83% HHV efficiency and a 43,236–310,495 BTU/h output range (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 | Cord Wood |
| Covered model numbers | Crown Royal Stoves 7400E |
| Emission rate | 2.4 g/hr |
|---|---|
| Carbon monoxide | 3.5 g/min |
| Efficiency (HHV) | 83 % |
|---|
| Heat output (low) | 43236 BTU/h |
|---|---|
| Heat output (high) | 310495 BTU/h |
| Firebox volume | 18.44 cu ft |
| 25C tax credit eligible (≥75% HHV) | Yes |
|---|---|
| 2020 NSPS compliant | Yes |
| Currently in production | No |
| EPA certification number | 40HH-20 |
What space does the Greentech Manufacturing Crown Royal Stoves 7400E suit?
- The 18.44 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
- Greentech Manufacturing Crown Royal RS7400E (8 g/hr)
- HeatMaster Furnaces G Series G10000 (0 g/hr)
- Heatmaster Furnaces Inc. (SteelTech Inc.) G Series G10000
- Piney Manufacturing ENVIRO CHIP-500 (5.4 g/hr)
- Fröling Heizkessel und Behälterbau Ges.m.b.H P4 Unit 100
- Fröling Heizkessel und Behälterbau Ges.m.b.H P4 Unit 80
Frequently asked questions
Is the Greentech Manufacturing Crown Royal Stoves 7400E EPA certified?
The Greentech Manufacturing Crown Royal Stoves 7400E holds EPA certification number 40HH-20 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 Greentech Manufacturing Crown Royal Stoves 7400E's emission rate?
The Greentech Manufacturing Crown Royal Stoves 7400E is certified at 2.4 grams of particulates per hour (tested with cord wood). Real-world emissions depend heavily on fuel moisture and operation — the lab figure assumes seasoned fuel and correct air settings.
Does the Greentech Manufacturing Crown Royal Stoves 7400E 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 Greentech Manufacturing Crown Royal Stoves 7400E's certified efficiency is 83% 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)