Friday, June 17, 2016

Wood and pellet stoves with actual efficiency numbers


Updated, July 27, 2017 - Nearly 150 wood and pellet stoves, 25% of all models, have been tested by accredited laboratories for efficiency, giving consumers vital information that hundreds of other models don't have. Consumers should consider buying one of these stoves if they want a stove that has a reliable efficiency number.  However, with wood stoves, efficiency depends partly on the operator.  The listed efficiency of wood stoves represents what consumers can get if they use dry wood and give the stove sufficient air.  With pellet stoves, the efficiency reported by the lab is a good approximation of the efficiency the consumer can expect.  

Consumers should beware that most manufacturer websites post unreliable and exaggerated efficiencies, except for a small group of companies. Some companies may not post the efficiencies of their pellet stoves because they are poorly designed and have efficiencies below 65%. Click here for an analysis of stove efficiencies.

In addition to the approximately 150 stoves on the EPA list with actual efficiencies, the Alliance for Green heat obtained actual efficiencies from the EPA on five other stoves.  The Harman Accentra 52i at 76%, the Quadrafire Mt. Vernon E2 at 75%, and the Ravelli 100 at 70% and Ravelli 80 at 56%. The Alliance obtained these efficiencies through a Freedom of Information Act request and received this chart.
 
How to read this chart: Some of the Model Names have been shortened to fit into the format of this blog.  To check the official source of certified stoves that would contain the full model name(s), refer to the list of EPA certified stoves.  The emission rate is the number of grams of particulate matter that make up smoke, per hour. The actual efficiency refers to a average of the range of heat outputs that the stove is capable of, calculated using the CSA B415.1-10, which uses the higher heating value (HHV). Under type of stove, "Cat" refers to catalytic stoves, "Hybrid" refers to stoves that have both catalytic and non-catalytic technology, and "Non Cat" refers to non-catalytic stoves.

Click here for a downloadable list of EPA certified stoves with verified efficiencies in order of their efficiencies and here for a downloadable list of the stoves in order of their emissions.  Carbon monoxide values are also included on this list for the few stoves that EPA has listed CO for.


Manufacturer Name Model Name Rate G/Hr Efficiency Type CO
Extraflame S.P.A. V5.2 0.59 87 Pellet
Extraflame S.P.A. V3.4 1.1 85 Pellet
Kuma Stove Inc. K100/300/400 SEQUOIA 2.2 84 Catalytic
Ningbo Hongsheng Fireplace Company (SMG Hearth and Home, LLC) HP 61 1.2 83 Pellet
SMG Hearth and Home,
LLC.
HP61 1.2 83 Pellet
Extraflame S.P.A. V4.5 0.93 82 Pellet
Woodstock Soapstone
Company, Inc.
Ideal Steel Hybrid 210 1 82 Catalytic
Hearth and Home
Technologies
PelPro PPC90, PelPro TSC90,
Pleasant Hearth PHC90
1.1 82 Pellet
Blaze King Industries,
Inc.
Blaze King King Catalytic KEJ 1107 1.8 82 Catalytic
Hearth and Home
Technologies
Pelpro PPC90 2 82 Pellet
Fireplace Products
International Limited
Regency F3500 1.1 81 Catalytic
Woodstock Soapstone
Company, Inc.
Progress Hybrid Soapstone Stove
#209
1.3 81 Catalytic
Blaze King Industries,
Inc.
Princess 35 PE35 2.1 81 Catalytic
Blaze King Industries,
Inc.
Princess PEJ 1006 2.4 81 Catalytic
Ningbo Hongsheng Fireplace Company (SMG Hearth and Home, LLC) HP50S Comfortbilt 2.5 81 Pellet
Travis Industries, Inc. Cape Cod 0.45 80 Catalytic
Travis Industries, Inc. LG Flushwood Insert Hybrid - Fyre 0.58 80 Catalytic
Ravelli SRL RV100 Classic 0.7 80 Pellet 0.04
Blaze King Industries, Inc. Ashford 30.1 (AF30.1), Chinook 30.1 (CK30.1), Sirocco 30.1 (SC30.1) 0.8 80 Catalytic
Fireplace Products
International Limited
Regency Cl2600 and HI400 1.8 80 Catalytic
Blaze King Industries,
Inc.
Princess Insert PI 1010A 2 80 Catalytic
England's Stove Works, Inc. 25-SSP01, 25-SSP01S, 55-SHSSP01,
55-SHSSP01S, 55-TRSSP01, and 55- TRSSP01S
0.56 79 Pellet
APR Industries Ltd. Kozi 100 Free Standing and Insert and
KSH 120
0.61 79 Pellet
Innovative Hearth
Products
Montecito Estate CAT and
WCT6904WS
1.30 79 Catalytic
Ningbo Hongsheng Fireplace Company (SMG Hearth and Home, LLC) HP 21 1.30 79 Pellet
SMG Hearth and Home,
LLC.
HP 21 1.3 79 Pellet
Fireplace Products
International Limited
Regency F5100 1.5 79 Catalytic
APR Industries Ltd. BayWin Free Standing and Insert 0.56 78 Pellet
Travis Industries, Inc. Rockport Hybrid-Fyre 0.8 78 Catalytic
Hearth and Home
Technologies
Absolute 63 1.4 78 Pellet
Seraph Industries Genesis 106/108 2.1 78 Pellet
Thelin Company Inc.
(Cardon Products)
Thelin Parlour 3000 0.43 77 Pellet 0.08
Woodstock Soapstone
Company, Inc.
Absolute Steel Hybrid 211 0.50 77 Catalytic
Blaze King Industries,
Inc.
Sirocco SC25 and Ashford AF25 0.9 77 Catalytic
Ardisam Serenity Castle 1.1 77 Pellet
Blaze King Industries,
Inc.
Chinook / Sirocco/Ashford 20 1.3 77 Catalytic
Blaze King Industries,
Inc.
Ashford 20.1, Chinook 20.1, Sirocco
20.1
1.3 77 Catalytic
EcoVision Ltd. Kiwi VcV 2.1 1.3 77 Catalytic 0.38
Sherwood Industries, Ltd. EF2-1, Chatham-1, Davenport-1 and
Kinderhook-1
1.4 77 Pellet 0.12
Ravelli SRL Roma (034-00-001A 0.74 76 Pellet
Travis Industries, Inc. Small Flush Wood Hybrid Fyre 0.89 76 Catalytic
APR Industries Ltd. Previa 1 76 Pellet
Hearth and Home
Technologies
Harman Accentra 52i-TC 1.10 76 Pellet 0.25
England's Stove Works,
Inc.
55-SHPCB120, 55-TRPCB120 and 25-
CB120
1.4 76 Pellet 0.27
J. A. Roby Polaris, Centauri, Vega, Sirius,
Antares, and Rigel
1.4 76 Non Catalytic
Jotul North America (Jotul
U.S.A., Inc.)
F55 3.5 76 Non Catalytic
Hase Kaminofenbau
(Hearthstone Quality
Home products Inc.)
Bari 8170 and Lima 8150 3.6 76 Non Catalytic
Blaze King Industries,
Inc.
Chinook /Sirocco/Ashford 30 0.97 75 Catalytic
Hearth and Home
Technologies.
Allure 50 1.5 75 Pellett
Pacific Energy Fireplace
Products Limited
TN20 2.1 75 Non Catalytic
Pacific Energy Fireplace
Products Limited
Neo 1.6, NEO 1.6 Insert, Newcastle
1.6, NEOSTONE 1.6
3.4 75 Non Catalytic
Jotul North America (Jotul
U.S.A., Inc.)
F118 CB 3.5 75 Non Catalytic
Sherwood Industries, Ltd. Enviro 1700I, 1700 and Vista Flame
1700I, 1700, 1700 Venice (Kodiak, Boston, Cabello)
4.5 75 Non Catalytic
Jotul North America (Jotul
U.S.A., Inc.)
F45 2.3 74 Non Catalytic
United States Stove
Company
VG 150 2.8 74 Non Catalytic
Pacific Energy Fireplace
Products Limited
Neo 2.5, Neo 2.5 Insert, and
Newcastle 2.5
2.9 74 Non Catalytic
Pacific Energy Fireplace
Products Limited
Neo 1.2 and NEOSTONE 1.2 2.9 74 Pellet
Hearthstone Quality
Home Heating Products
Tribute 8040 3 74 Non Catalytic
Hearthstone Quality
Home Heating Products
Inc.
Craftsbury 1 8391 3.1 74 Non Catalytic
Jotul North America (Jotul
U.S.A., Inc.)
F500 3.2 74 Non Catalytic
Travis Industries, Inc. Evergreen 3.6 74 Non Catalytic
Jotul North America (Jotul
U.S.A., Inc.)
C350 4 74 Non Catalytic
Jotul North America (Jotul
U.S.A., Inc.)
Jotul F600 4.1 74 Non Catalytic
Pacific Energy Fireplace
Products Limited
True North 40 Insert 0.69 73 Pellet
Travis Industries, Inc. 42 Apex 0.7 73 Catalytic
American Energy
Systems, Inc. (AES)
Baby Country Side 1 73 Pellet
Pacific Energy Fireplace
Products Limited
True North TN20 and TN20 Insert
Series B
1.6 73 Non Catalytic 0.77
Hearth and Home
Technologies
QuadraFire 31M-ACC-C and
QuadraFire Discovery-II-C
1.9 73 Non Catalytic 1.6
Ningbo Hongsheng Fireplace Company (SMG Hearth and Home, LLC) HP22 ComfortBilt 1.90 73 Pellet 0.16
Unforgetable Fire LLC Katydid 1.9 73 Non Catalytic
Jotul North America (Jotul
U.S.A., Inc.)
F100 Nordic QT 3 73 Non Catalytic
Jotul North America (Jotul F118 Black Bear 3 73 Non Catalytic
Kuma Stove Inc. Wood Classic HT-2 3.3 73 Non Catalytic
Kuma Stove Inc. Scott HT-1 (Tamarack) 3.5 73 Non Catalytic
Kuma Stove Inc. Ashwood 3.5 73 Non Catalytic
Jotul North America (Jotul
U.S.A., Inc.)
F3CBII 3.8 73 Non Catalytic
Boru Stove Company Carraig Mor BCMUS 3.9 73 Non Catalytic
Jotul North America (Jotul
U.S.A., Inc.)
C450, Tamarack 4.4 73 Non Catalytic
RAIS A/S Viva 100 L (CA) USA, Viva 100 L G (CA) USA, Viva 100 L Classic (CA) USA, Viva 100 L G Classic (CA) USA, Viva 120 L (CA) USA, Viva 120 L G (CA) USA, Viva 120 L Classic (CA) USA, Viva 120 L G Classic (CA) USA, Viva 160 L (CA) USA, Viva 160 L G (CA) USA, Viva 160 L Classic (CA) USA, Viva 160 L G Classic (CA) USA 1.1 72 Non Catalytic 1.9
United States Stove
Company
5780, AP5780, VG5780, SP5780, and
SP58
1.30 72 Pellet 0.21
Pacific Energy Fireplace
Products Limited
True North TN40 1.4 72 Pellet
Hearth and Home
Technologies
XXV-TC 1.7 72 Pellet
Hase Kaminofenbau
(Hearthstone Quality
Home products Inc.)
Tula 8190/8191 2.5 72 Non Catalytic
Hearthstone Quality
Home Heating Products
Inc.
Tula 8190/8191 2.5 72 Non Catalytic
Hearthstone Quality
Home Heating Products
Inc.
Castleton 8030 2.7 72 Non Catalytic
Jotul North America (Jotul
U.S.A., Inc.)
50TL 2.8 72 Non Catalytic
Hearthstone Quality
Home Heating Products
Inc.
Equinox 8000 3.1 72 Non Catalytic
Hearthstone Quality
Home Heating Products
Inc.
Clydesdale 8491 3.2 72 Non Catalytic
Sherwood Industries, Ltd. Enviro 1200, 1200I, Vista Flame 1200,
1200I, 1200 Venice (Kodiak, Boston, Cabello)
3.4 72 Non Catalytic
Kuma Stove Inc. Aspen 4.1 72 Non Catalytic
Hearthstone Quality
Home Heating Products
Inc.
Morgan 8470 4.3 72 Non Catalytic
United States Stove
Company
AF700 and CF700M 0.4 71 Non Catalytic
Hearth and Home
Technologies
Accentra-2 0.62 71 Pellet
American Energy
Systems, Inc. (AES)
Little Rascal 1.1 71 Pellet
Hearth and Home
Technologies
Mount Vernon AE Freestanding and
Insert
1.7 71 Pellet
Hearthstone Quality
Home Heating Products
Inc.
Manchester 2 8361 2.1 71 Non Catalytic
ARADA STOVES Ltd. Farringdon 12 2.8 71 Non Catalytic
Hearthstone Quality
Home Heating Products
Inc.
Manchester 8360 3 71 Non Catalytic
Jotul North America (Jotul F602 CB 3.4 71 Non Catalytic
Blaze King Industries,
Inc.
Briarwood II/90 3.5 71 Non Catalytic
Jotul North America (Jotul
U.S.A., Inc.)
C550 CB 4.5 71 Non Catalytic
Even Temp, Inc Prescott EXP and Prescott EXL 0.53 70 Pellet
Heat Tech Industries HTP 26 Bay 0.54 70 Pellet
Stove Builder
International Inc.
55 Series Eco-55 and Eco-55 ST 0.96 70 Pellet 0.13
Foyers Supreme
Incorporated
STUV 1658IN, STUV 1658CUBE,
STUV 1658H, STUV 1658-Z
1.5 70 Non Catalytic 1.6
MF Fire Catalyst 1.9 70 Catalytic 1.2
Hearthstone Quality
Home Heating Products
Inc.
Heritage 8023 2 70 Non Catalytic
Hearthstone Quality
Home Heating Products
Inc.
Shelburne 1 8371 2.1 70 Non Catalytic
Hearthstone Quality
Home Heating Products
Inc.
Phoenix 8612 2.4 70 Non Catalytic
Foyers Supreme
Incorporated
30-Compact, 30-H 2.8 70 Non Catalytic
Hearth and Home
Technologies
Adventure III 2.9 70 Non Catalytic
Stove Builder
International, Inc.
Cambridge 2.9 70 Pellet 0.68
England's Stove Works,
Inc.
15-SSW02, 50-SHSSW02, and 50-
TRSSW02
3.50 70 Non Catalytic
United States Stove
Company
5710, AP5710, VG5710, 5501S,
AP5501S and VG5501S
1 69 Pellet
Wiseway Pellet Stoves
(United States Stove
Company)
GW1949 1.9 69 Pellet
Hearth and Home
Technologies
Quadra Fire Explorer III 2 69 Non Catalytic
Hearthstone Quality
Home Heating Products
Inc.
Homestead 8570 1.9 68 Non Catalytic
Morso Jernstoberi A/S 3112B/3142B 1.9 68 Non Catalytic 0.93
Jotul North America (Jotul
U.S.A., Inc.)
Castine F400, F400 3.8 68 Non Catalytic
United States Stove
Company
1269E 4.2 68 Non Catalytic
American Energy
Systems, Inc. (AES)
3500P, 35001, and 3502 1 67 Pellet
Even Temp, Inc Eclipse-P 1.6 67 Pellet
Foyers Supreme
Incorporated
Ambience Elegance 36 24SF 1.8 67 Non Catalytic 1.7
Hearth and Home
Technologies
Advance 1.8 67 Pellet
Foyers Supreme
Incorporated
STUV 1668IN, STUV 1668CUBE,
STUV 1668H, STUV 1668-Z
2.3 67 Non Catalytic 2.6
Hearthstone Quality
Home Heating Products
Inc.
Heritage (8022) 2.7 67 Non Catalytic
Hearthstone Quality
Home Heating Products
Inc.
Mansfield 2 8012 2.9 67 Non Catalytic
Foyers Supreme
Incorporated
STUV 1678IN, STUV 1678CUBE,
STUV 1678H, STUV 1678-Z
3.1 67 Non Catalytic 3.1
OVO LLC Caldera 3.4 67 Non Catalytic 2
Pacific Energy Fireplace
Products Limited
FP25 3.5 67 Non Catalytic
United States Stove
Company
2016E 3.7 67 Non Catalytic
Heat Tech Industries HTP 26 Standard 0.77 66 Pellet
Even Temp, Inc Ashby-P 1 66 Pellet
Even Temp, Inc Hastings 1.1 66 Pellet
Jotul North America (Jotul
U.S.A., Inc.)
F370 2.6 66 Non Catalytic
GHP Group WS-2720-B 4.5 66 Non Catalytic
Pacific Energy Fireplace
Products Limited
FP16 3.1 65 Non Catalytic
Stove Builder
International, Inc.
HE350, FP-15-Waterloo, Horizon, and
Monaco XL, WFP100
1.6 64 Non Catalytic 2.6
J. A. Roby Cook, Cicero, Chief, Cuistot, Elda, and
Marmiton
1.9 64 Non Catalytic 0.03
United States Stove
Company
2469E 4.2 64 Non Catalytic
Foyer Supreme
Incorporated
Fusion FN 4.4 64 Non Catalytic
Even Temp, Inc Element-P 0.66 63 Pellet
Sierra Products, Inc. EasyFire Pellet Stove 0.82 63 Pellet 0.56
Wolf Steel Ltd. NZ3000H 3.3 63 Catalytic
Wittus Inc. Shaker 3.9 63 Non Catalytic 1.6
United States Stove
Company
5660E, AP5660, AP5660L, AP5660PE,
and DNMP566
1.9 62 Pellet
RSF/ICC-Industrial
Chimney Company.
Delta Fusion 1.3 60 Non Catalytic
Thelin Company Inc.
(Cardon Products)
Thelin Gnome 1.2 59 Pellet 0.16
LMF Manufacturing, Ltd. America's Heat B-100 1.7 58 Pellet