| Dual Fuel | Gas & Oil | Babcock & Wilcox | http://www.babcock.com |
| Dual Fuel | Natural & LP Gas | Beckett Gas Inc. | http://www.beckettcorp.com |
| Dual Fuel | Gas & Oil | Forney Corp. | http://www.forneycorp.com |
| Dual Fuel | Gas & Oil | Hamworthy Peabody Combustion, Inc. | http://www.hamworthy-peabody.com |
| Dual Fuel | Gas & Oil | Industrial Combustion | http://www.ind-comb.com |
| Dual Fuel | Natural & LP Gas | Industrial Combustion | http://www.ind-comb.com |
| Dual Fuel | Gas & Oil | Iron Fireman | http://www.ironfireman.com |
| Dual Fuel | Natural & LP Gas | Iron Fireman | http://www.ironfireman.com |
| Dual Fuel | Gas & Oil | John Zink Co. | http://www.johnzink.com |
| Dual Fuel | Natural & LP Gas | John Zink Co. | http://www.johnzink.com |
| Dual Fuel | Gas & Oil | Johnston Boiler Co. | http://www.johnstonboiler.com |
| Dual Fuel | Natural & LP Gas | Johnston Boiler Co. | http://www.johnstonboiler.com |
| Dual Fuel | Natural & LP Gas | Midco International Inc. | http://www.midcointernational.com |
| Dual Fuel | Gas & Oil | Power Flame Inc. | http://www.powerflame.com |
| Dual Fuel | Natural & LP Gas | Power Flame Inc. | http://www.powerflame.com |
| Dual Fuel | Natural & LP Gas | Solarflo Corp. | http://www.solarflo.com |
| Dual Fuel | Natural & LP Gas | Solaronics Inc. | http://www.solaronicsusa.com |
| Gas | Commercial & Industrial | Adams Mfg. Co. | http://www.adamsmanufacturing.com |
| Gas | Infrared | Adams Mfg. Co. | http://www.adamsmanufacturing.com |
| Gas | Commercial & Industrial | AESYS Technologies LLC | http://www.aesystech.com |
| Gas | Commercial & Industrial | Beckett Gas Inc. | http://www.beckettcorp.com |
| Gas | Direct-Fired Makeup Air Units | Beckett Gas Inc. | http://www.beckettcorp.com |
| Gas |
| Beckett Gas Inc. | http://www.beckettcorp.com |
| Gas | Commercial & Industrial | Bradford White | http://www.bradfordwhite.com |
| Gas |
| Bradford White | http://www.bradfordwhite.com |
| Gas | Direct-Fired Makeup Air Units | Cambridge Engineering, Inc. | http://www.cambridge-eng.com |
| Gas | infrared | Central Boiler, Inc. | http://www.centralboiler.com |
| Gas | Commercial & Industrial | Cleaver-Brooks, Inc. | http://www.cleaver-brooks.com |
| Gas |
| Combustion Safety, Inc. | http://www.combustionsafety.com |
| Gas | Commercial & Industrial | Detroit Radiant Products Co. | http://www.reverberray.com |
| Gas | Infrared | Detroit Radiant Products Co. | http://www.reverberray.com |
| Gas | Commercial & Industrial | Enerco Technical Products Inc. | http://www.enerco.com |
| Gas | Infrared | Enerco Technical Products Inc. | http://www.enerco.com |
| Gas | Commercial & Industrial | Forney Corp. | http://www.forneycorp.com |
| Gas |
| Forney Corp. | http://www.forneycorp.com |
| Gas | Commercial & Industrial | GN Electronics Inc. | http://www.gnelectronics.com |
| Gas |
| Hamworthy Peabody Combustion, Inc. | http://www.hamworthy-peabody.com |
| Gas | Direct-Fired Makeup Air Units | Hartzell Fan, Inc. | http://www.hartzellfan.com |
| Gas | Commercial & Industrial | Industrial Combustion | http://www.ind-comb.com |
| Gas | Commercial & Industrial | Iron Fireman | http://www.ironfireman.com |
| Gas |
| Iron Fireman | http://www.ironfireman.com |
| Gas | Commercial & Industrial | John Zink Co. | http://www.johnzink.com |
| Gas | Commercial & Industrial | Midco International Inc. | http://www.midcointernational.com |
| Gas | Direct-Fired Makeup Air Units | Midco International Inc. | http://www.midcointernational.com |
| Gas | Incinerators | Midco International Inc. | http://www.midcointernational.com |
| Gas |
| Midco International Inc. | http://www.midcointernational.com |
| Gas | Commercial & Industrial | Power Flame Inc. | http://www.powerflame.com |
| Gas | Direct-Fired Makeup Air Units | Power Flame Inc. | http://www.powerflame.com |
| Gas |
| Power Flame Inc. | http://www.powerflame.com |
| Gas | Incinerators | Roto-Die inc. | http://www.roto-die.com |
| Gas | Commercial & Industrial | Solarflo Corp. | http://www.solarflo.com |
| Gas | Incinerators | Solarflo Corp. | http://www.solarflo.com |
| Gas | Commercial & Industrial | Solaronics Inc. | http://www.solaronicsusa.com |
| Gas | Infrared | Solaronics Inc. | http://www.solaronicsusa.com |
| Gas | Commercial & Industrial | Vapor Power International LLC | http://www.vaporpower.com |
| Gas | Commercial & Industrial | Wayne Combustion Systems | http://www.waynecombustion.com |
| Gas |
| Wayne Combustion Systems | http://www.waynecombustion.com |
| Oil |
| Bradford White | http://www.bradfordwhite.com |
| Oil |
| Forney Corp. | http://www.forneycorp.com |
| Oil |
| Hamworthy Peabody Combustion, Inc. | http://www.hamworthy-peabody.com |
| Oil |
| Industrial Combustion | http://www.ind-comb.com |
| Oil |
| Iron Fireman | http://www.ironfireman.com |
| Oil |
| John Zink Co. | http://www.johnzink.com |
| Oil |
| Power Flame Inc. | http://www.powerflame.com |
| Oil |
| R.W. Beckett Corp. | http://www.beckettcorp.com |
| Oil |
| Staefa Control System | http://www.staefa.com |
| Oil |
| Vapor Power International LLC | http://www.vaporpower.com |
| Oil |
| Wayne Combustion Systems | http://www.waynecombustion.com |
| Oil Burner | Nozzles | Hago | http://www.hagonozzles.com |
| Oil Burner | Nozzles | Monarch | http://www.monarchhardware.com |
| Pulverized Coal, Gas, Oil, Combined |
| American Boiler Manufacturers Association | http://www.abma.com |
| Pulverized Coal, Gas, Oil, Combined |
| Babcock & Wilcox | http://www.babcock.com |
| Pulverized Coal, Gas, Oil, Combined |
| Hamworthy Peabody Combustion, Inc. | http://www.hamworthy-peabody.com |
| Solid Fuel |
| Central Boiler, Inc. | http://www.centralboiler.com |
| Combination |
| Midco International Inc. | http://www.midcointernational.com |
| Combination |
| Pneuline Controls Co. | http://www.neccdelivers.com |
| Combination |
| Smith Cast Iron Boilers | http://www.smithboiler.com |
| Commercial |
| Midco International Inc. | http://www.midcointernational.com |
| Commercial |
| Pneuline Controls Co. | http://www.neccdelivers.com |
| Commercial |
| Smith Cast Iron Boilers | http://www.smithboiler.com |
| Gas |
| Bradford White Canada Inc. | http://bradfordwhite.com/ |
| Gas |
| Midco International Inc. | http://www.midcointernational.com |
| Gas |
| Pneuline Controls Co. | http://www.neccdelivers.com |
| Gas |
| Smith Cast Iron Boilers | http://www.smithboiler.com |
| Gas |
| Superior Radiant Products, Ltd. | http://www.superiorradiant.com |
| Gas & Oil | Boiler | Beckett Gas Inc. | http://www.beckettcorp.com |
| Gas & Oil | Boiler | Carlin | http://www.carlincombustion.com |
| Gas & Oil | Boiler | Powerflame | http://www.powerflame.com |
| Industrial |
| Pneuline Controls Co. | http://www.neccdelivers.com |
| Oil |
| Bradford White Canada Inc. | http://bradfordwhite.com/ |
| Oil |
| Messe Frankfurt Inc. | http://www.ish-na.com |
| Oil |
| Pneuline Controls Co. | http://www.neccdelivers.com |
| Residential |
| Bradford White Canada Inc. | http://bradfordwhite.com/ |
| Residential |
| Messe Frankfurt Inc. | http://www.ish-na.com |
| Residential |
| Midco International Inc. | http://www.midcointernational.com |