Call Toll Free Number 1.866.289.4652 
| Open 7 Days a Week
Huge Sale on Clearance Heaters & Greenstar Boilers! FREE GROUND SHIPPING on all orders over $199!
Shop By Category
-
Bosch Therm High Temperature Kit (7736500074)
Bosch Therm High Temperature Kit (7736500074)
Boosts the Bosch Therm's Maximum Temperature Learn More -
Bosch Therm Intelligent Cascading Kit (7709003962)
Bosch Therm Intelligent Cascading Kit (7709003962)
Allows up to 24 Bosch Therm Heaters to be Connected Learn More -
Bosch Greentherm External Pump Cable Accessory (7736504585)
Bosch Greentherm External Pump Cable Accessory (7736504585)
Allows up to 24 Bosch Therm Heaters to be Connected Learn More -
Bosch Therm External Water Filter (8703305356)
Bosch Therm External Water Filter (8703305356)
Replaces the Internal Water Filter for Easy Access Learn More -
Bosch Greenstar CRC200 Comfort Room Control (7738111034)
Bosch Greenstar CRC200 Comfort Room Control (7738111034)
Bosch Greenstar CRC200 Comfort Room Control for Bosch Greenstar Condensing Boilers Learn More -
Bosch Therm Concentric Termination Kit (196016) / AO Smith PVC Concentric Vent Kit 100112163 (9007611005)
Bosch Therm Concentric Vent Kit (196016)
PVC vent kit for Bosch Therm Condensing Tankless Water Heaters Learn More -
-
Bosch Therm Concentric Vent Kit (ESHCK)
Bosch Therm Concentric Vent Kit (ESHCK)
Concentric Side Wall Vent Kit for Single Wall Penetration Learn More -
Bosch Powerstream Pro RP17PT PCB Control Board #93-793843 for Poly Units
Powerstream Pro RP17PT PCB Control Board (93-793843) Learn More -
Bosch Powerstream Pro RP17PT PCB Control Board #93-793777 for Copper Can Unit
Powerstream Pro RP17PT PCB Control Board (93-793777) Learn More -
Bosch Therm Horizontal Vent Kit (AQ5EF)
Bosch Therm Horizontal Vent Kit (AQ5EF)
Stainless Steel Side Wall Vent Kit for the Bosch Therm 660EF Learn More -
Bosch Greenstar Concentric PP Horizontal Up and Out Vent Kit (7738003218)
Bosch Greenstar Concentric PP Horizontal Up and Out Vent Kit (7738003218)
Polypropylene (PP) vent kit for Bosch Greenstar Condensing Boilers only Learn More -
Bosch Powerstream Pro RP27PT PCB Control Board #93-793778 for Copper Can Unit
Powerstream Pro RP27PT PCB Control Board (93-793778) Learn More -
Bosch Tronic 3000 US3 (Powerstream Pro RP3P)
Bosch Tronic 3000 US3 (Powerstream Pro RP3P) Point-of-Use Electric Tankless Water Heater
3.4kW, 30AMP, 110V Learn More -
-
Bosch Greenstar Heat Exchanger Cleaning Kit (7738005718)
Bosch Greenstar Heat Exchanger Cleaning Kit (7738005718)
Bosch Greenstar Heat Exchanger Cleaning Kit for Bosch Greenstar Condensing Boilers Learn More -
Bosch Therm Vertical Vent Kit (ES VVT) Steep
Bosch Therm Vertical Vent Kit (ES VVT) Steep
Stainless Steel Vertical Vent Kit for Steep Roofs Learn More -
-
Bosch Tronic 4000C-3
Bosch Tronic 4000C-3 Point-of-Use Electric Tankless Water Heater
3.5kW, 30AMP, 120V with temperature control Learn More -
Bosch Tronic 4000C-8
Bosch Tronic 4000C-8 Point-of-Use Electric Tankless Water Heater
8.5kW, 40AMP, 240V with temperature control Learn More -
Bosch Tronic 4000C-6
Bosch Tronic 4000C-6 Point-of-Use Electric Tankless Water Heater
6.5kW, 30AMP, 240V with temperature control Learn More -
Stiebel Eltron DHC-5-2
Stiebel Eltron DHC-5-2 Whole-House Electric Tankless Water Heater
Requires 1x20AMP breaker at 240V with minimum 100AMP service Learn More -
Stiebel Eltron DHC-8-2
Stiebel Eltron DHC-8-2 Whole-House Electric Tankless Water Heater
Requires 1x30AMP breaker at 240V with minimum 100AMP service Learn More -
Stiebel Eltron DHC-3-2
Stiebel Eltron DHC-3-2 Whole-House Electric Tankless Water Heater
Requires 1x15AMP breaker at 240V with minimum 100AMP service Learn More -
Stiebel Eltron DHC-10-2
Stiebel Eltron DHC-10-2 Whole-House Electric Tankless Water Heater
Requires 1x40AMP breaker at 240V with minimum 100AMP service Learn More -
Stiebel Eltron DHC-4-3
Stiebel Eltron DHC-4-3 Whole-House Electric Tankless Water Heater
Requires 1x20AMP breaker at 240V with minimum 100AMP service Learn More -
Stiebel Eltron DHC-6-2
Stiebel Eltron DHC-6-2 Whole-House Electric Tankless Water Heater
Requires 1x25AMP breaker at 240V with minimum 100AMP service Learn More -
Stiebel Eltron DHC-3-1
Stiebel Eltron DHC-3-1 Whole-House Electric Tankless Water Heater
Requires 1x25AMP breaker at 120V with minimum 100AMP service Learn More -
Stiebel Eltron DHC-9-3
Stiebel Eltron DHC-9-3 Whole-House Electric Tankless Water Heater
Requires 1x35AMP breaker at 277V with minimum 100AMP service Learn More -
Stiebel Eltron DHC-4-2
Stiebel Eltron DHC-4-2 Whole-House Electric Tankless Water Heater
Requires 1x20AMP breaker at 240V with minimum 100AMP service Learn More -
Bosch Tronic 4000C-10
Bosch Tronic 4000C-10 Point-of-Use Electric Tankless Water Heater
10.5kW, 50AMP, 240V with temperature control Learn More -
Bosch Tronic 3000T ES2.5 (Ariston Pro Ti GL2.5TiS)
Bosch Tronic 3000T ES2.5 (Ariston Pro Ti GL2.5TiS) Point-of-Use Electric Mini-Tank Water Heater
2.5 gallon mini-tank with simple 120V plug-in connection Learn More -
Bosch Tronic 3000T ES4 (Ariston Pro Ti GL4TiS)
Bosch Tronic 3000T ES4 (Ariston Pro Ti GL4TiS) Point-of-Use Electric Mini-Tank Water Heater
4 gallon mini-tank with simple 120V plug-in connection Learn More -
Bosch Therm Concentric Vent Kit (ESHCK-FULL-KIT)
Bosch Therm Concentric Vent Kit (ESHCK-FULL-KIT)
Includes 3' Pipe, 90 Degree Elbow and Termination Tee Learn More -
Bosch Tronic 3000 US12 (Powerstream Pro RP12PT)
Bosch Tronic 3000 Model US12 (Powerstream Pro RP12PT) Point-of-Use Electric Tankless Water Heater
12kW, 50AMP, 240V with thermostat control Learn More -
Stiebel Eltron DHC-E 8/10
Stiebel Eltron DHC-E 8/10 Whole-House Electric Tankless Water Heater
Requires 1x50AMP breaker at 240V with minimum 100AMP service Learn More -
Stiebel Eltron DHC-E 12
Stiebel Eltron DHC-E 12 Whole-House Electric Tankless Water Heater
Requires 1x50AMP breaker at 240V with minimum 150AMP service Learn More -
Bosch Greentherm Concentric PP Horizontal Up and Out Vent Kit (7738003210)
Bosch Greentherm Concentric PP Horizontal Up and Out Vent Kit (7738003210)
Polypropylene (PP) vent kit for Bosch Greentherm and Therm C 1050 ES and C 950 ES Condensing Tankless Water Heaters only Learn More -
Bosch Tronic 3000 US7 (Powerstream Pro RP7P)
Bosch Tronic 3000 Model US7 (Powerstream Pro RP7P) Point-of-Use Electric Tankless Water Heater
7.2kW, 30AMP, 240V Learn More -
Bosch Tronic 3000 US9 (Powerstream Pro RP1P)
Bosch Tronic 3000 Model US9 (Powerstream Pro RP1P) Point-of-Use Electric Tankless Water Heater
9.5kW, 40AMP, 240V Learn More -
Bosch Tronic 3000T ES8 (Ariston Pro Ti GL8TiS)
Bosch Tronic 3000T ES8 (Ariston Pro Ti GL8TiS) Point-of-Use Electric Mini-Tank Water Heater
7 gallon mini-tank (cord not included) Learn More -
Stiebel Eltron Tempra 12 B
Stiebel Eltron Tempra 12 B Whole-House Electric Tankless Water Heater
Requires 1x50AMP breakers at 240V with minimum 150AMP service Learn More -
Stiebel Eltron Tempra 12 Plus
Stiebel Eltron Tempra 12 Plus Whole-House Electric Tankless Water Heater
Requires 1x50AMP breakers at 240V with minimum 150AMP service Learn More -
Stiebel Eltron Tempra 15 B
Stiebel Eltron Tempra 15 B Whole-House Electric Tankless Water Heater
Requires 2x30AMP breakers at 240V with minimum 150AMP service Learn More -
Bosch Tronic 6000 C WH17 (Powerstream Pro RP17PT)
Bosch Tronic 6000 WH17 Whole-House Electric Tankless Water Heater
Requires 2x40AMP breakers at 240V with minimum 150AMP service. Includes new digital display. Learn More -
Stiebel Eltron Tempra 20 B
Stiebel Eltron Tempra 20 B Whole-House Electric Tankless Water Heater
Requires 2x40AMP breakers at 240V with minimum 150AMP service Learn More -
Stiebel Eltron Tempra 15 Plus
Stiebel Eltron Tempra 15 Plus Whole-House Electric Tankless Water Heater
Requires 2x30AMP breakers at 240V with minimum 150AMP service Learn More -
Stiebel Eltron Tempra 24 B
Stiebel Eltron Tempra 24 B Whole-House Electric Tankless Water Heater
Requires 2x50AMP breakers at 240V with minimum 150AMP service Learn More -
Stiebel Eltron Tempra 29 B
Stiebel Eltron Tempra 29 B Whole-House Electric Tankless Water Heater
Requires 3x40AMP breakers at 240V with minimum 200AMP service Learn More -
Stiebel Eltron Tempra 20 Plus
Stiebel Eltron Tempra 20 Plus Whole-House Electric Tankless Water Heater
Requires 2x40AMP breakers at 240V with minimum 150AMP service Learn More -
Stiebel Eltron Tempra 24 Plus
Stiebel Eltron Tempra 24 Plus Whole-House Electric Tankless Water Heater
Requires 2x50AMP breakers at 240V with minimum 150AMP service Learn More -
Stiebel Eltron Tempra 36 B
Stiebel Eltron Tempra 36 B Whole-House Electric Tankless Water Heater
Requires 3x50AMP breakers at 240V with minimum 300AMP service Learn More -
Stiebel Eltron Tempra 29 Plus
Stiebel Eltron Tempra 29 Plus Whole-House Electric Tankless Water Heater
Requires 3x40AMP breakers at 240V with minimum 200AMP service Learn More -
Stiebel Eltron Tempra 36 Plus
Stiebel Eltron Tempra 36 Plus Whole-House Electric Tankless Water Heater
Requires 3x50AMP breakers at 240V with minimum 300AMP service Learn More -
Bosch Tronic 6000 C WH27 (Powerstream Pro RP27PT)
Bosch Tronic 6000 WH27 Whole-House Electric Tankless Water Heater
Requires 3x40AMP breakers at 240V with minimum 200AMP service. Includes new digital display. Learn More -
Cozy Gravity Wall Furnace W255G (Natural Gas) - Single Wall
Cozy Gravity Wall Furnace W255G (Natural Gas)
25,000 BTUs, Single Wall, 4" Oval B-Vent Exhaust Learn More -
Cozy Gravity Wall Furnace W256G (Liquid Propane) - Single Wall
Cozy Gravity Wall Furnace W256G (Liquid Propane)
25,000 BTUs, Single Wall, 4" Oval B-Vent Exhaust Learn More -
Bosch Greentherm T 9800 SE 160 NG / LP
Bosch Greentherm T 9800 SE 160 Tankless Water Heater with Secondary Condensing Heat Exchanger
160,000 BTUs and Up to 140 degrees F, Electronic Ignition, PP or PVC exhaust, Energy Star, Natural Gas or Liquid Propane Learn More -
Cozy Gravity Wall Furnace W355G (Natural Gas) - Single Wall
Cozy Gravity Wall Furnace W355G (Natural Gas)
35,000 BTUs, Single Wall, 4" Oval B-Vent Exhaust Learn More -
Cozy Gravity Wall Furnace W356G (Liquid Propane) - Single Wall
Cozy Gravity Wall Furnace W356G (Liquid Propane)
35,000 BTUs, Single Wall, 4" Oval B-Vent Exhaust Learn More -
-
-
Bosch Therm 940 ES NG (Natural Gas)
Bosch Therm 940ES-NG (Natural Gas) whole-house tankless water heater
199,000 BTUs and up to 140 degrees F, Electronic Ignition, Stainless Steel exhaust, Energy Star Learn More -
Bosch Therm 940 ES LP (Liquid Propane)
Bosch Therm 940ES-LP (Liquid Propane) whole-house tankless water heater
199,000 BTUs and up to 140 degrees F, Electronic Ignition, Stainless Steel exhaust, Energy Star Learn More -
-
-
Bosch Greentherm T 9800 SE 199 NG / LP
Bosch Greentherm T 9800 SE 199 Tankless Water Heater with Secondary Condensing Heat Exchanger
199,000 BTUs and Up to 140 degrees F, Electronic Ignition, PP or PVC exhaust, Energy Star, Natural Gas or Liquid Propane Learn More -
Cozy Gravity Wall Furnace W506G (Liquid Propane) - Dual Wall
Cozy Gravity Wall Furnace W506G (Liquid Propane)
50,000 BTUs, Dual Wall, 4" Oval B-Vent Exhaust Learn More -
Cozy Gravity Wall Furnace W505G (Natural Gas) - Dual Wall
Cozy Gravity Wall Furnace W505G (Natural Gas)
50,000 BTUs, Dual Wall, 4" Oval B-Vent Exhaust Learn More -
-
-
-
-
Bosch Greentherm T 9900 SE 160 NG / LP
Bosch Greentherm T 9900 SE 160 Tankless Water Heater with Secondary Condensing Heat Exchanger and Built-in Recirculation Pump
160,000 BTUs and Up to 140 degrees F, Electronic Ignition, PP or PVC exhaust, Energy Star, Natural Gas or Liquid Propane Learn More -
-
Bosch Buderus SST SST150-40
Bosch Buderus SST SST150-40 40 Gallon Stainless Steel Indirect Storage Tank for Domestic Hot Water (DHW) Learn More -
Cozy Conventional-Vent Counterflow Wall Furnace CF403D (Natural Gas)
Cozy Conventional Vent Counterflow Wall Furnace CF403D (Natural Gas)
40,000 BTUs, 4" Oval B-Vent Exhaust Learn More -
-
Bosch Greentherm T 9900 SE 199 NG / LP
Bosch Greentherm T 9900 SE 199 Tankless Water Heater with Secondary Condensing Heat Exchanger and Built-in Recirculation Pump
199,000 BTUs and Up to 140 degrees F, Electronic Ignition, PP or PVC exhaust, Energy Star, Natural Gas or Liquid Propane Learn More -
Bosch Greentherm T 9900i SE 199 NG / LP
Bosch Greentherm T 9900i SE 199 Tankless Water Heater with Secondary Condensing Heat Exchanger, Built-in Recirculation Pump and Wi-Fi
199,000 BTUs and Up to 140 degrees F, Electronic Ignition, PP or PVC exhaust, Energy Star, Natural Gas or Liquid Propane Learn More -
Bosch Therm 520 HN LP (Liquid Propane)
Bosch Therm 520HN-LP (Liquid Propane) whole-house tankless water heater
117,000 BTUs, Hydro Ignition, 5" B-Vent Exhaust
NOT FOR SALE IN CALIFORNIA Learn More -
Bosch Greenstar Wall-Hung Combi 100P NG/LP
Bosch Greenstar Gas-Fired Wall-Hung Combi 100P
100,800 BTU combination boiler for Space Heating and Domestic Hot Water. Electronic ignition. Works with Natural Gas or Propane Learn More -
-
Cozy Conventional-Vent Counterflow Wall Furnace CF553D (Natural Gas)
Cozy Conventional Vent Counterflow Wall Furnace CF553D (Natural Gas)
55,000 BTUs, 4" Oval B-Vent Exhaust Learn More -
Cozy Direct Vent Counterflow Wall Furnace DVCF403C (Natural Gas)
Cozy Direct Vent Counterflow Wall Furnace DVCF403C (Natural Gas)
40,000 BTUs, 4" Concentric Exhaust Learn More -
Bosch Buderus SST SST250-65
Bosch Buderus SST SST250-65 65 Gallon Stainless Steel Indirect Storage Tank for Domestic Hot Water (DHW) Learn More -
Bosch Singular Wall-Hung Combi 4000 NG/LP
Bosch Singular Gas-Fired Wall-Hung Combi 4000
155,000 BTU combination boiler for Space Heating and Domestic Hot Water. Electronic ignition. Works with Natural Gas or Propane Learn More -
Cozy Direct Vent Counterflow Wall Furnace DVCF553C (Natural Gas)
Cozy Direct Vent Counterflow Wall Furnace DVCF553C (Natural Gas)
55,000 BTUs, 4" Concentric Exhaust Learn More -
-
Bosch Greenstar Wall-Hung 79 NG/LP
Bosch Greenstar Gas-Fired Wall-Hung 79
79,200 BTU condensing boiler for Space Heating. Electronic ignition. Works with Natural Gas or Propane Learn More -
Bosch Buderus SST SST300-80
Bosch Buderus SST SST300-80 80 Gallon Stainless Steel Indirect Storage Tank for Domestic Hot Water (DHW) Learn More -
Bosch Singular Wall-Hung Combi 5200 NG/LP
Bosch Singular Gas-Fired Wall-Hung Combi 5200
199,000 BTU combination boiler for Space Heating and Domestic Hot Water. Electronic ignition. Works with Natural Gas or Propane Learn More -
Cozy Hi-Efficient Direct Vent Wall Furnace HEDV253A (Natural Gas)
Cozy Hi-Efficient Direct Vent Wall Furnace HEDV253A (Natural Gas)
25,000 BTUs, 3.5" Concentric Exhaust Learn More -
Bosch Greenstar Wall-Hung Combi 151P NG/LP
Bosch Greenstar Gas-Fired Wall-Hung Combi 151P
151,600 BTU combination boiler for Space Heating and Domestic Hot Water. Electronic ignition. Works with Natural Gas or Propane Learn More -
Bosch Greenstar Wall-Hung 100 NG/LP
Bosch Greenstar Gas-Fired Wall-Hung 100
100,800 BTU condensing boiler for Space Heating. Electronic ignition. Works with Natural Gas or Propane Learn More -
Bosch Greenstar Wall-Hung Combi 100 NG/LP
Bosch Greenstar Gas-Fired Wall-Hung Combi 100
100,800 BTU combination boiler for Space Heating and Domestic Hot Water. Electronic ignition. Works with Natural Gas or Propane Learn More -
Bosch Greenstar Floor Standing (FS) 79 NG/LP
Bosch Greenstar Gas-Fired Floor-Standing FS 79
79,200 BTU condensing boiler for Space Heating. Electronic ignition. Works with Natural Gas or Propane Learn More -
Bosch Greenstar Floor Standing (FS) 100 NG/LP
Bosch Greenstar Gas-Fired Floor-Standing FS 100
100,800 BTU condensing boiler for Space Heating. Electronic ignition. Works with Natural Gas or Propane Learn More -
Bosch Greenstar Wall-Hung Combi 131 NG/LP
Bosch Greenstar Gas-Fired Wall-Hung Combi 131
131,900 BTU combination boiler for Space Heating and Domestic Hot Water. Electronic ignition. Works with Natural Gas or Propane Learn More -
Bosch Greenstar Wall-Hung Combi 151 NG/LP
Bosch Greenstar Gas-Fired Wall-Hung Combi 151
151,600 BTU combination boiler for Space Heating and Domestic Hot Water. Electronic ignition. Works with Natural Gas or Propane Learn More
