Harmony IIIB
Previously certified
EPA lists Harmony IIIB under Thermic Distribution Europe as a previously certified non-catalytic wood stove.
The listed emission rate is 2.7 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 | 2.7 grams per hour |
| HHV efficiency | Not listed |
| Heat output | 11,200–57,300 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 IIIB
Other model lines from this manufacturer
- Efel Symphony 387.74 Previously certified
- Efel Symphony 390.74 Previously certified
- Harmony I 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
- 1, Design 01 — 2.7 grams per hour
- 24 ACD — 2.7 grams per hour
- Bristol OH-M — 2.7 grams per hour
- Castleton 8030 — 2.7 grams per hour
- Clayton Mfg Clay 60B, 70 — 2.7 grams per hour
HHV efficiency
EPA does not list an HHV efficiency to compare, or no other line lists one.
Heat output
- Harmony IIIB — 11,200–57,300 BTU/hr
- Flair 34, Lumis 32 - Cast Iron, Lumis 32 - Soapstone, Regal 32 - Soapstone, Regal 32 - Cast Iron — 19,029–49,358 BTU/hr
- Large Flush Wood Hybrid Fyre Insert — 10,710–57,628 BTU/hr
- CC180 — 10,700–57,600 BTU/hr
- C.D. Sequoia FA455 — 8,700–60,300 BTU/hr
Thermic Distribution Europe hub · EPA Certified Wood Heater Database