King KE40
Currently certified
EPA lists King KE40 under Blaze King Industries, Inc. as a currently certified catalytic wood stove.
EPA lists 3 rows for this model line, with emission rates of 1 grams per hour and 1 grams per hour and 1.1 grams per hour.
The listed HHV efficiency is 81 percent.
Source: EPA Certified Wood Heater Database, snapshot 2026-10-23.
EPA rows
| Field | Row 1 | Row 2 | Row 3 |
|---|---|---|---|
| Status | Previously certified | Currently certified | Previously certified |
| Type | Wood Stove | Wood Stove | Wood Stove |
| Subtype | Catalytic Stove | Catalytic Stove | Catalytic Stove |
| Emission | 1 grams per hour | 1 grams per hour | 1.1 grams per hour |
| HHV efficiency | 81 percent | 81 percent | 81 percent |
| Heat output | 10,392–38,516 BTU/hr | 10,392–38,516 BTU/hr | 11,690–34,985 BTU/hr |
| Firebox | 4.25 cu ft | 4.55 cu ft | 4.35 cu ft |
| CO | 0.49 g/min | 0.49 g/min | 0.6 g/min |
| Certified fuel | Crib Wood | Crib Wood | Crib Wood |
| Test method | Not listed | Not listed | Not listed |
| 2020 NSPS | Yes | Yes | 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.
- King KE40
Other model lines from this manufacturer
- 20.2 Series: Ashford 20.2 (AF20.2), Chinook 20.2 (CK20.2), Sirocco 20.2 (SC20.2) Currently certified
- 25 Series: Sirocco 25 (SC25) Insert, Ashford 25 (AF25) Insert, Boxer 24 (BX24) Freestanding Currently certified
- 30.2 Series: Sirocco 30.2 (SC30.2), Ashford 30.2 (AF30.2), and Chinook 30.2 (CK30.2) Currently certified
- Princess PE32 Currently certified
- Princess PI29 Insert Currently certified
- Sentry S14 Currently certified
- Ashford 20.1, Chinook 20.1, Sirocco 20.1 Previously certified
- Ashford 30.1 (AF30.1), Chinook 30.1 (CK30.1), Sirocco 30.1 (SC30.1) Previously certified
- Ashford AF25, Boxer 24 (BX24), Sirocco SC25 Previously certified
- Ashford AF30.2, Chinook CK30.2, Sirocco SC30.2, Ashford AF30.2A Previously certified
- Blaze King Auto Light PAL-4000 Previously certified
- Blaze King KEJ-1102 Previously certified
- Blaze King King Catalytic KEI-1300, PEI-1200 Previously certified
- Blaze King King Catalytic KEJ 1107 Previously certified
- Blaze King Princess Catalytic PEJ-1002 Previously certified
- Blaze King Princess Insert PI 1010 Previously certified
- Blaze King Royal Heir RHT-2200, 2250, RHT-2100 Previously certified
- Briarwood II/90 Previously certified
- Chinook Siroccco Ashford CK24C, CK24F, CK30C, CK30F, SC30, AF30 Previously certified
- Chinook Sirocco Ashford 20 Previously certified
- Chinook Sirocco Ashford 30 Previously certified
- Eagle/Pioneer E90, PZ-90, Briarwood XE-90, XEI-90 Previously certified
- Heat Pro C110 Previously certified
- Heat Pro C210 Previously certified
- King Catalytic KEJ-1101 Previously certified
- PEJ 1003 Previously certified
- Princess 35 PE35 Previously certified
- Princess Insert PI 1010A Previously certified
- Princess PEJ 1006 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
- 212N Navajo Hybrid Wood-Coal, 212S Survival Hybrid Wood-Coal — 1 grams per hour
- 2370 — 1 grams per hour
- 42CVT Wood Fireplace — 1 grams per hour
- Astra 24 24SFC, Novo 24 - Cast Iron, Monarch 24 (24SFC) — 1 grams per hour
- Century/Dutchmaster FW and CDW — 1 grams per hour
HHV efficiency
- 44 Elite NexGen-Hybrid — 81 percent
- F3500 — 81 percent
- Green Mountain 60-1 (Model 8661), Shelburne 3 (Model 8373), Hipster 20-1 (Model 8261) — 81 percent
- Green Mountain 80 8680 — 81 percent
- K-180 Series Aspen LE, Tamarack LE, Aberdeen LE, Alpine LE — 81 percent
Heat output
- Arrow 18 — 14,500–34,400 BTU/hr
- Blaze King King Catalytic KEJ 1107 — 9,100–39,800 BTU/hr
- S-22 and S-22I — 12,000–36,900 BTU/hr
- F445 — 13,212–35,722 BTU/hr
- 2100 series (Timberwolf) — 11,238–37,580 BTU/hr