Harmony I
Previously certified
EPA lists Harmony I under Thermic Distribution Europe as a previously certified non-catalytic wood stove.
The listed emission rate is 4.4 grams per hour.
EPA does not list an HHV efficiency for this model line.
Source: EPA Certified Wood Heater Database, snapshot 2026-10-23.
EPA rows
| Field | Row 1 |
|---|---|
| Status | Previously certified |
| Type | Wood Stove |
| Subtype | Non-Catalytic Stove |
| Emission | 4.4 grams per hour |
| HHV efficiency | Not listed |
| Heat output | 11,800–55,000 BTU/hr |
| Firebox | Not listed |
| CO | Not listed |
| Certified fuel | Not listed |
| 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.
- Harmony I
Other model lines from this manufacturer
- Efel Symphony 387.74 Previously certified
- Efel Symphony 390.74 Previously certified
- Harmony IIIB Previously certified
- S-33,H33,R33, 33 Previously certified
Nearest model lines by EPA figures
Nearest means the smallest absolute difference on that EPA figure, among other Wood Stove model lines that list it. Ties are ordered by model name.
Emission
- 1710 — 4.4 grams per hour
- 2.5 ZC Series (2008) (Monaco, Stratford, Solution 2.5ZC, FP-10, Lafayette, WFP75, HE250, FP-12 Mundo) — 4.4 grams per hour
- 21 (FS21/Elite) — 4.4 grams per hour
- ANSWER, ANSWER Insert, Republic1250 and Avalon Spokane — 4.4 grams per hour
- ANSWER/LOPI PATRIOT/LOPI PARLOR, Republic1250 and Avalon Spokane, Avalon Camano — 4.4 grams per hour
HHV efficiency
EPA does not list an HHV efficiency to compare, or no other line lists one.
Heat output
- Harmony I — 11,800–55,000 BTU/hr
- Model 36 F — 11,900–55,000 BTU/hr
- NC-6D — 11,700–54,900 BTU/hr
- Timberwolf 2200, Timberwolf EPI22, Napoleon S20, Napoleon S20i, Timberwolf T20, Timberwolf T20i, Ambience 9010 (Outlander 19), Ambience 9100 (Outlander i19) — 12,944–54,127 BTU/hr
- 44 Elite NexGen-Hybrid — 12,016–54,510 BTU/hr
Thermic Distribution Europe hub · EPA Certified Wood Heater Database