Central Boiler Inc.- WoodMaster Central Boiler Classic Edge 960
Central Boiler Inc.- WoodMaster Central Boiler Classic Edge 960 is a non-catalytic hydronic heater from Central Boiler Inc.- WoodMaster certified at 3.3 g/hr particulate emissions with 86% HHV efficiency and a 47,368–378,339 BTU/h output range.
| Appliance type | hydronic-heater |
|---|---|
| Combustion technology | Non-Catalytic Stove |
| Certified fuel | Cord Wood |
| Covered model numbers | Central Boiler Classic Edge 960, WoodMaster CleanFire 900 |
| Emission rate | 3.3 g/hr |
|---|---|
| Carbon monoxide | 2.94 g/min |
| Efficiency (HHV) | 86 % |
|---|
| Heat output (low) | 47368 BTU/h |
|---|---|
| Heat output (high) | 378339 BTU/h |
| Firebox volume | 32 cu ft |
| 25C tax credit eligible (≥75% HHV) | Yes |
|---|---|
| 2020 NSPS compliant | Yes |
| Currently in production | Yes |
| EPA certification number | 46HH-22 |
What space does the Central Boiler Inc.- WoodMaster Central Boiler Classic Edge 960 suit?
- The 32 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
- Evoworld P 100
- Heatmor Manufacturing 400-4S (10.7 g/hr)
- Piney Manufacturing Optimizer 350 (7.3 g/hr)
- ESIM USV 100GS (7.55 g/hr)
- Steel Tech G Series G400G400s (9 g/hr)
- Fröling Heizkessel und Behälterbau Ges.m.b.H P4 Unit 100
Frequently asked questions
Is the Central Boiler Inc.- WoodMaster Central Boiler Classic Edge 960 EPA certified?
Yes, the Central Boiler Inc.- WoodMaster Central Boiler Classic Edge 960 is on the EPA's current list of certified wood heaters (certification number 46HH-22) and meets the 2020 NSPS Step 2 emission limits.
What is the Central Boiler Inc.- WoodMaster Central Boiler Classic Edge 960's emission rate?
The Central Boiler Inc.- WoodMaster Central Boiler Classic Edge 960 is certified at 3.3 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 Central Boiler Inc.- WoodMaster Central Boiler Classic Edge 960 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 Central Boiler Inc.- WoodMaster Central Boiler Classic Edge 960's certified efficiency is 86% 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)