Pleasant Hearth Medium Wood Stove PH1800WS, MWS-1800, WSL-1800-B, WSL-1800, GWS-1800-B, GWS-1800
Previously certified
EPA lists Pleasant Hearth Medium Wood Stove PH1800WS, MWS-1800, WSL-1800-B, WSL-1800, GWS-1800-B, GWS-1800 under GHP Group as a previously certified non-catalytic wood stove.
The listed emission rate is 2.2 grams per hour.
The listed HHV efficiency is 70 percent.
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 | 2.2 grams per hour |
| HHV efficiency | 70 percent |
| Heat output | 14,208–62,789 BTU/hr |
| Firebox | 1.78 cu ft |
| CO | 1.532 g/min |
| Certified fuel | Cord Wood |
| 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.
- Pleasant Hearth Medium Wood Stove PH1800WS
- MWS-1800
- WSL-1800-B
- WSL-1800
- GWS-1800-B
- GWS-1800
Other model lines from this manufacturer
- Medium Wood Stove Series: MWS-2200L, MWS-2200LB, MWS-2200LE, MWS-2200P, MWS-2200PB, MWS-2200PE, 2200L-MWS, 2200LB-MWS, 2200LE-MWS, 2200P-MWS, 2200PB-MWS, 2200PE-MWS, MWS-2200LZ, MWS-2200LBZ, MWS-2200LEZ, MWS-2200PZ, MWS-2200PBZ, MWS-2200PEZ, 2200LZ-MWS, 2200LBZ-MWS, 2200LEZ-MWS, 2200PZ-MWS, 2200PBZ-MWS, 2200PEZ-MWS, HCSM22L, HCSM22LB, HCSM22LE, HCSM22P, HCSM22PB, HCSM22PE Currently certified
- Pleasant Hearth Small Wood Stove SWS-1200, SWS-1200-B, HWS-1200, HWS-1200-B, PWS- 1200-B PH1200WS, WSL-1200, PH1200WS-B, WSL-1200-B, GWS-1200-B, WS-1200, GWS-1200 WS-1200-B Currently certified
- Medium Wood Stove Pleasant Hearth LWS-127201-B; Pleasant Hearth LWS-127201-BCA Previously certified
- Pleasant Hearth Large Wood Stove GWS-2200, GWS-2200-B, WSL-2200, WSL-2200-B, LWS-2200, WS-2200, WS-2200-B, PH2200WS, PH2200WS-B, SWS-2200, SWS-2200-B, HWS-2200, HWS-2200-B, PWS-2200-B Previously certified
- Pleasant Hearth LWS-130291-B; Pleasant Hearth LWS-130291-BCA Previously certified
- WS-2417, WS-2417-B, HWS-224172MH, HWS-224172, DWS-324173, LWS-124171, RWS-424174MH, and RWS-424174 Previously certified
- WS-2720-B 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
- 18 PC — 2.2 grams per hour
- Astra Duo 38, Elegance 42 ST, Monarch See-Through, 38, Novo Duo 38 - Soapstone, Novo Duo 38 - Cast Iron — 2.2 grams per hour
- Basic 1 and 3 — 2.2 grams per hour
- Basic 4 — 2.2 grams per hour
- Blaze King King Catalytic KEI-1300, PEI-1200 — 2.2 grams per hour
HHV efficiency
- 1.7 Series - Archway 1700, Gateway 1700, Columbia II, Savannah II, Deco II, HEI170, HES170, FW2800 — 70 percent
- 1.7 Series - Blackcomb II, Harmony 1.7, HEI170, HES170, Solution 1.7, Osburn 1700, Inspire 1700, Escape 1500, Escape 1500-I, Solution 1.7-I, Destination 1.7-I, Osburn 1700-I, Matrix 1700-I, Inspire 1700-I — 70 percent
- 15-SSW02,50-SHSSW02, and 50-TRSSW02 — 70 percent
- 21NC — 70 percent
- 30-H — 70 percent
Heat output
- K-100, K-300, K-400 — 12,100–65,200 BTU/hr
- NEO 2.5 LE, NEO 2.5 Insert LE, NEOSTONE 2.5 LE — 15,845–59,861 BTU/hr
- Liberty — 15,155–63,239 BTU/hr
- US2000E, VG2020, AW2020E, CH20, NM890, SW2.0, AHWS2020, US2000E-P, US2000E-L, US2000E-BP, US2000E-BL, AW2020E-P, AW2020E-L, AW2020E-BP, AW2020E-BL, VG2020-P, VG2020-L, VG2020-BP, VG2020-BL — 15,261–63,196 BTU/hr
- F45V2 — 16,748–58,657 BTU/hr