ComfortBilt HP50S
Currently certified
EPA lists ComfortBilt HP50S under SMG Hearth and Home, LLC as a currently certified hybrid pellet stove.
The listed emission rate is 1.7 grams per hour.
The listed HHV efficiency is 80 percent.
Source: EPA Certified Wood Heater Database, snapshot 2026-10-23.
EPA rows
| Field | Row 1 |
|---|---|
| Status | Currently certified |
| Type | Pellet Stove |
| Subtype | Hybrid |
| Emission | 1.7 grams per hour |
| HHV efficiency | 80 percent |
| Heat output | 17,794–39,170 BTU/hr |
| Firebox | Not applicable |
| CO | 0 g/min |
| Certified fuel | Wood Pellets |
| Test method | Not listed |
| 2020 NSPS | Yes |
Retail names in the model line
These are the names split from EPA's model cell. They are aliases for this line, not separate listings.
- ComfortBilt HP50S
Other model lines from this manufacturer
- ComfortBilt HP22N, HP22, and HP22i Insert Currently certified
- HP 21 Currently certified
- HP 40 Currently certified
- HP 61 Currently certified
- HP41 - Alpine Currently certified
- HP42-Alpine Currently certified
- HP75C Currently certified
- ComfortBilt HP54 Previously certified
- ComfortBilt HP55 Previously certified
- HP22 ComfortBilt Previously certified
Nearest model lines by EPA figures
Nearest means the smallest absolute difference on that EPA figure, among other Pellet Stove model lines that list it. Ties are ordered by model name.
Emission
- 5660, AP5660E, US5660, VG5660, SP566, 5660-W, AP5660-W, US5660-W, VG5660-W, 5660-KIT, AP5660-KIT, US5660-KIT, VG5660-KIT, CGPS1525 — 1.7 grams per hour
- Americas Heat B-100 — 1.7 grams per hour
- Emerald 2000 — 1.7 grams per hour
- Empress FS — 1.7 grams per hour
- Harman P61a — 1.7 grams per hour
HHV efficiency
- Ashby-P II — 80 percent
- Deerfield II — 80 percent
- Enviro Mini 2, Enviro P3-2 Regency Greenfire GF40-2 — 80 percent
- G2-A50WTS, G2-C50WTS, G2-H50WTS, G2-J50WTS, G2-N50WTS — 80 percent
- H1 Hybrid, H2 Hybrid, H3 Hybrid — 80 percent
Heat output
- HP42-Alpine — 14,567–42,370 BTU/hr
- Maxx-B — 9,700–47,600 BTU/hr
- Harman Absolute 63 — 10,164–46,399 BTU/hr
- HP 61 — 17,617–39,769 BTU/hr
- G2-ABF66WTS, G2-CBF66WTS, G2-HBF66WTS, G2-JBF66WTS, G2-NBF66WTS — 16,573–40,842 BTU/hr
SMG Hearth and Home, LLC hub · EPA Certified Wood Heater Database