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Archived List of Cleaner Hydronic Heaters

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Phase 1 models are no longer considered "qualified" under the Program after March 31 2010. Use of permanent labels and hang tags for these models must be discontinued on units manufactured after that date.

Below are 3 lists of cleaner burning hydronic heaters that qualified for the EPA voluntary program. The first table is for models that qualified for the Phase 1 orange tag for "year round" use (about 70 percent cleaner than unqualified models). Please note that although the tag is calculated for year round use, some jurisdictions may not allow "year round" use (i.e., not during summer for just hot water rather than heat). The second table is for models that qualified for the Phase 1 orange tag for "heating season use only." These emissions are calculated as if the model is only used during the heating season. Please note that some jurisdictions do not allow models that only qualify for "heating season use only" because their emissions would be greater if they are used year round. 

The third table is archived Phase 2 models that are no longer manufactured, the expiratiration date has expired, or no longer meet the current emissions level.

Several Phase 2 hydronic heaters are also archived on this page.


 

Phase 1 Orange Tag "Year Round" Models

Manufacturer Model
Name &
Number
Heat
Output
Rating
(1)
Annual
Average
Emission
Rate
Heat
Input
(2)
Annual
Average
Emission
Level
Heat
Output
Annual
Average
Emission
Level
Highest
Individual
Test Run
Pro-Fab Industries Inc.
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Empyre
Pro
Series
200
66,290
BTU/hr

8.40 grams/hr

0.18 grams/hr/
10,000 BTU
heat output

0.182
lbs/million BTU
heat input

0.27
lbs/million BTU
heat output

18.023
grams/hr
Central Boiler
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E -
Classic
2300
160,001
BTU/hr

6.4 grams/hr

0.06 grams/hr/
10,000 BTU
heat output

0.20
lbs/million BTU
heat input

0.31
lbs/million BTU
heat output

17.60
grams/hr
Piney
Manufacturing
Limited
(Portage and Main)
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Optimizer
250
44,519
BTU/hr

5.33 grams/hr

0.18 grams/hr/
10,000 BTU
heat output

0.199
lbs/million BTU
heat input

0.35
lbs/million BTU
heat output

8.31
grams/hr
Sequoyah Paradise
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E3300B 109,528
BTU/hr

8.1 grams/hr

0.13 grams/hr/
10,000 BTU
heat output

0.28
lbs/million BTU
heat input

0.56
lbs/million BTU
heat output

19.1
grams/hr
Central Boiler
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E -
Classic
1200
89,613
BTU/hr

7.5 grams/hr

0.15 grams/hr/
10,000 BTU
heat output

0.33
lbs/million BTU
heat input

0.59
lbs/million BTU
heat output

19.94
grams/hr
Wood Doctor
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Converter 87,858
BTU/hr

20.3 grams/hr

0.33 grams/hr/
10,000 BTU
heat output

0.30
lbs/million BTU
heat input

0.66
lbs/million BTU
heat output

41.5
grams/hr
Heatmor
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400 SSR 157,784
BTU/hr

31.3 grams/hr

0.29 grams/hr/
10,000 BTU
heat output

0.41
lbs/million BTU
heat input

0.68
lbs/million BTU
heat output

47.6
grams/hr
Heatmor
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200 SSR 71,923
BTU/hr

20.3 grams/hr

0.42 grams/hr/
10,000 BTU
heat output

0.35
lbs/million BTU
heat input

0.76
lbs/million BTU
heat output

33.4
grams/hr
Bioheat Resources
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BH500
Eco
Energy
73,067
BTU/hr

19.07 grams/hr

0.323 grams/hr/
10,000 BTU
heat output

0.402
lbs/million BTU
heat input

0.77
lbs/million BTU
heat output

71.602
grams/hr
Hardy
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KB175 66,681
BTU/hr

16.3 grams/hr

0.31 grams/hr/
10,000 BTU
heat output

0.54
lbs/million BTU
heat input

0.87
lbs/million BTU
heat output

42.7
grams/hr
Greenwood Technologies (3) 100 18,248 BTU/hr

15.205 grams/hr

1.090 grams/hr/
10,000 BTU
heat output

0.564
lbs/million BTU
heat input

2.046
lbs/million BTU
heat output

17.80 grams/hr
Sequoyah Paradise
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E3400 101,020
BTU/hr

21.88 grams/hr

0.42 grams/hr/
10,000 BTU
heat output

0.488
lbs/million BTU
heat input

2.37
lbs/million BTU
heat output

34.77
grams/hr

1 - Based on 8-hour test for stick wood models and 4-hour test for continuous feed models.
2 - EPA Phase 1 level is 0.60 lbs/million BTU.  Emission levels are annual averages unless qualified for heating season use only.
3 - These data are via the "cordwood exception," i.e., according to the ASTM cordwood method in lieu of EPA Method 28 OWHH.


 

Phase 1 Orange Tag "Heating Season Only" Models

Manufacturer Model
Name &
Number
Heat
Output
Rating
(1)
Heating
Season
Average
Emission
Rate
Heat
Input
(2)
Heating
Season
Average
Emission
Level
Heat
Output
Heating
Season
Average
Emission
Level
Highest
Individual
Test Run
Pro-Fab Industries Inc.
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Empyre
Pro
Series
200
66,290
BTU/hr

11.58 grams/hr

0.25 grams/hr/
10,000 BTU
heat output

0.186
lbs/million BTU
heat input

0.28
lbs/million BTU
heat output

18.023
grams/hr
Piney
Manufacturing Limited
(Portage and Main)
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Optimizer
250
44,519
BTU/hr

6.59 grams/hr

0.21 grams/hr/
10,000 BTU
heat output

0.201
lbs/million BTU
heat input

0.32
lbs/million BTU
heat output

8.31
grams/hr
Central Boiler
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E -
Classic
2300
160,001
BTU/hr

8.6 grams/hr

0.08 grams/hr/
10,000 BTU
heat output

0.21
lbs/million BTU
heat input

0.32
lbs/million BTU
heat output

17.60
grams/hr

Sequoyah Paradise
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E3300B 109,528
BTU/hr

8.5 grams/hr

0.13 grams/hr/
10,000 BTU
heat output

0.20
lbs/million BTU
heat input

0.39
lbs/million BTU
heat output

19.1
grams/hr
Central Boiler
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E -
Classic
1200
89,613
BTU/hr

9.1 grams/hr

0.17 grams/hr/
10,000 BTU
heat output

0.31
lbs/million BTU
heat input

0.51
lbs/million BTU
heat output

19.94
grams/hr
Wood Doctor
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Converter 87,858
BTU/hr

26.8 grams/hr

0.43 grams/hr/
10,000 BTU
heat output

0.30
lbs/million BTU
heat input

0.65
lbs/million BTU
heat output

41.5
grams/hr
Alternative Fuel Boilers
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EBW150 27,441
BTU/hr

14.14 grams/hr

0.576 grams/hr/
10,000 BTU
heat output

0.434
lbs/million BTU
heat input

0.80
lbs/million BTU
heat output

24.05
grams/hr
Bioheat Resources
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BH500
Eco
Energy
73,067
BTU/hr

28.54 grams/hr

0.478 grams/hr/
10,000 BTU
heat output

0.479
lbs/million BTU
heat input

0.90
lbs/million BTU
heat output

71.602
grams/hr
Aqua-Therm
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Omega
100
63,807
BTU/hr

23.80 grams/hr

0.515 grams/hr/
10,000 BTU
heat output

0.551
lbs/million BTU
heat input

1.17
lbs/million BTU
heat output

26.988
grams/hr
Greenwood Technologies (3) 100 18,248 BTU/hr

13.643 grams/hr

0.863 grams/hr/
10,000 BTU
heat output

0.418
lbs/million BTU
heat input

1.362
lbs/million BTU
heat output

17.80 grams/hr
Sequoyah Paradise
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E3400 101,020
BTU/hr

20.10 grams/hr

0.31 grams/hr/
10,000 BTU
heat output

0.37
lbs/million BTU
heat input

1.48
lbs/million BTU
heat output

34.77
grams/hr

1 - Based on 8-hour test for stick wood models and 4-hour test for continuous feed models.
2 - EPA Phase 1 level is 0.60 lbs/million BTU.  Emission levels are annual averages unless qualified for heating season use only.
3 - These data are via the "cordwood exception," i.e., according to the ASTM cordwood method in lieu of EPA Method 28 OWHH.


 

Phase 2 Archived Models

Manufacturer Model
Name &
Number
Heat
Output
Rating
Heating
Season
Average
Emission
Rate
Heat
Input

Heating
Season
Average
Emission
Level
Heat
Output
Heating
Season
Average
Emission
Level
Highest
Individual
Test Run

 

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