The following outdoor hydronic heaters (wood-fired boilers) are U.S. Environmental Protection Agency (EPA) Phase 2 "white tag" qualified and their manufacturer(s) have submitted compliance certifications to the Massachusetts Department of Environmental Protection (MassDEP) as required by state regulation. Note: EPA "white tag" qualification is good for five years and must be renewed.

Only those units that appear on this list may legally be sold and installed for use in Massachusetts. Last updated in October 2014.
 

ManufacturerContact InformationModel(s)

Central Boiler Inc.

 

20502 160th Street
Greenbush, MN 56726

800-248-4681

E-Classic 1400
E-Classic 1450
E-Classic 2400
E-Classic 3200
Maxim M255 P
Maxim M255 PE

Dectra Corp.

 

3425 33rd Avenue NE
Minneapolis, MN 55418

612-781-4236

GARN WHS 1500*
GARN WHS 2000

*Note: Indoor unit certified for outdoor use.

Earth Manufacturing LLCBox 310
Mountain Grove, MO 65711

417-926-4136
Klear Sky 400
Greentech Manufacturing Inc.2716 Crescent Drive
International Falls, MN 56649

866-361-7355
Crown Royal Stove RS7400E

Hardy Manufacturing Co. Inc.

 

12345 Road 505
Philadelphia, MS 39350

601-656-5866

Klean Burn KB125
Klean Burn KBP165
Klean Burn KBP270*

*Note: Currently certified for burning wood pellets only.

Hawken Energy Inc.

 

1064 Industrial Park Drive
Shelby, MI 49455

888-564-2876

GX10

 

Heatmor Inc.105 Industrial Park Court NE
Warroad, MN 56763

800-834-7552
200 SSP
200 SSR II
Mahoning Outdoor Furnaces

208 Whiskey Run Road
Mahaffey, PA 15757
 

800-692-5200

Mahoning Skye Series V

Northwest Manufacturing Inc.

 

600 Polk Avenue SW
Red Lake Falls, MN 56750

800-932-3629

WoodMaster FlexFuel 30 KW
WoodMaster FlexFuel 60 KW

 

Piney Manufacturing Ltd.

Box 130
Piney, MB R0A 1K0
Canada

204-423-2367

Portage & Main Optimizer 250
Portage & Main Enviro Chip 500

 

Polar Furnace Manufacturing Inc.

 

Box 159
Sperling, MB R0G 2M0
Canada

204-626-3485

G2
G3

 

Pro-Fab Industries Inc.

 

Box 12
Arborg, MB R0C 0A0
Canada

888-933-4440

Empyre Elite XT 200
Empyre Pro Series 200
Empyre Pro Series 400
SteelTech / HeatMaster445 George Avenue
Box 158
Winkler, MB R6W 4A5
Canada

204-325-9792
HeatMasterSS G100
HeatMasterSS G200
HeatMasterSS G400