HP 61
Previously certified
EPA lists HP 61 under Ningbo Hongsheng Fireplace Company (SMG Hearth and Home, LLC) as a previously certified pellet stove.
The listed emission rate is 1.2 grams per hour.
The listed HHV efficiency is 83 percent.
Source: EPA Certified Wood Heater Database, snapshot 2026-10-23.
EPA rows
| Field | Row 1 |
|---|---|
| Status | Previously certified |
| Type | Pellet Stove |
| Subtype | Non-Catalytic Stove |
| Emission | 1.2 grams per hour |
| HHV efficiency | 83 percent |
| Heat output | 21,425–42,246 BTU/hr |
| Firebox | Not applicable |
| CO | Not listed |
| Certified fuel | Wood Pellets |
| Test method | Not listed |
| 2020 NSPS | No |
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.
- HP 61
Other model lines from this manufacturer
- HP 21 Previously certified
- HP22 ComfortBilt Previously certified
- HP50S 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
- BIO-45MF, Eco-45, FP-45, Hybrid-45MF — 1.2 grams per hour
- ComfortBilt HP55 — 1.2 grams per hour
- Hastings II — 1.2 grams per hour
- HP 61 — 1.2 grams per hour
- HTP Standard — 1.2 grams per hour
HHV efficiency
- 5710E, AP5710E, VG5710E, 5501SE, AP5501SE, VG5501SE, 5710-XHE, US513ME, Breckwell SP600, Comfort Glow CGPS2050 — 83 percent
- Europa 75a, Rafael 55a — 83 percent
- G2-A90WTS, G2-C90WTS, G2-H90WTS, G2-J90WTS, G2-N90WTS — 83 percent
- Maryon, Maryon FG — 83 percent
- P158, P158 D, and P158 T — 83 percent
Heat output
- Eagle 2001 — 8,400–55,200 BTU/hr
- Empress FS — 27,800–35,700 BTU/hr
- Harman P61-C — 17,085–46,831 BTU/hr
- ComfortBilt HP54 — 18,813–44,391 BTU/hr
- Harman P68 — 11,800–53,500 BTU/hr
Ningbo Hongsheng Fireplace Company (SMG Hearth and Home, LLC) hub · EPA Certified Wood Heater Database