Electric Tankless Water Heaters
A Whole House Electric Tankless Water Heater Is the Most Convenient Way to Keep Water Hot



Liquid Propane
Rinnai SENSEI RX180iN Natural Gas / Liquid Propane Wall-Mounted Indoor / Outdoor Tankless Water Heater - 120V, 180,000 BTU, 10.0 GPMItem number61b180in



Liquid Propane
Rinnai SENSEI RX199iN Natural Gas / Liquid Propane Wall-Mounted Indoor / Outdoor Tankless Water Heater - 120V, 199,000 BTU, 11.0 GPMItem number61brx199in



Liquid Propane
Rinnai SENSEI RXP199iN Natural Gas / Liquid Propane Wall-Mounted Indoor / Outdoor Tankless Water Heater with Recirculation Pump - 120V, 199,000 BTU, 11.0 GPMItem number61brxp199in



Natural Gas
Rinnai V53DeN Natural Gas Wall-Mounted Outdoor Tankless Water Heater - 120V, 120,000 BTU, 5.3 GPMItem number61bv53den



240 Volts
Ariston SM 13 240V Aures Slim Multi Point-of-Use Tankless Electric Water Heater - 240V, 13kW, 2.5 GPMItem number53bsm13240v



Liquid Propane
Rinnai SENSEI CX199iN Natural Gas / Liquid Propane Wall-Mounted Indoor / Outdoor Tankless Water Heater - 120V, 199,000 BTU, 11.0 GPMItem number61bcx199i



Liquid Propane
Rinnai SENSEI CXP199iN Natural Gas / Liquid Propane Wall-Mounted Indoor / Outdoor Tankless Water Heater - 120V, 199,000 BTU, 11.0 GPMItem number61bcxp19in



240 Volts
Stiebel Eltron 239225 Tempra 36 Plus Whole House Tankless Electric Water Heater - 27/36 kW, 0.87 GPMItem number798239225


120 Volts
Stiebel Eltron 231045 Mini 2 Point-of-Use Tankless Electric Water Heater - 1.8 kW, 0.21 GPMItem number798231045
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240 Volts
GE GE27DNHPDG Whole House Tankless Electric Water Heater - 240V, 27kW, 5.4 GPMItem number865ge27dnhpdg



Liquid Propane
Rinnai SENSEI CX160iN Natural Gas / Liquid Propane Wall-Mounted Indoor / Outdoor Tankless Water Heater - 120V, 160,000 BTU, 9.0 GPMItem number61bcx16in



Natural Gas
Eccotemp 6GB-ING Natural Gas Indoor Tankless Water Heater - 110/120V, 6.0 GPMItem number27a6gbing



Liquid Propane
Eccotemp 6GB-ILP Liquid Propane Indoor Tankless Water Heater - 110/120V, 6.0 GPMItem number27a6gbilp



240 Volts
GE GE24DNHPDG Whole House Tankless Electric Water Heater - 240V, 24kW, 5.3 GPMItem number865ge24dnhpdg


120 Volts
Stiebel Eltron 220816 Mini 3 Point-of-Use Tankless Electric Water Heater - 3.0 kW, 0.40 GPMItem number798220816
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Natural Gas
Eccotemp 7GB-NG Natural Gas Outdoor Tankless Water Heater - 110/120V, 7.0 GPMItem number27a7gbng


120 Volts
Stiebel Eltron 232099 Mini 3.5 Point-of-Use Tankless Electric Water Heater - 3.5 kW, 0.40 GPMItem number798232099
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120 Volts
Stiebel Eltron 232098 Mini 2.5 Point-of-Use Tankless Electric Water Heater - 2.4 kW, 0.40 GPMItem number798232098
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120 Volts
GE GE04SNLPDG Point-of-Use Tankless Electric Water Heater - 120V, 3.5kW, 0.7 GPMItem number865ge04snlpdg



120 Volts
Stiebel Eltron 236136 Mini-E 3.5-1 Point-of-Use Tankless Electric Water Heater - 120V, 3.5kW, 0.30 GPMItem number798236136
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240 Volts
GE GE06SNHPDG Point-of-Use Tankless Electric Water Heater - 240V, 5.5kW, 1.2 GPMItem number865ge06snhpdg



240 Volts
GE GE11SNHPDG Point-of-Use Tankless Electric Water Heater - 240V, 11kW, 2.5 GPMItem number865ge11snhpdg



Natural Gas
Eccotemp i12-NG Natural Gas Indoor Tankless Water Heater - 110/120V, 4.0 GPMItem number27ai12ng



Liquid Propane
Eccotemp 45HI-LP Liquid Propane Indoor Tankless Water Heater - 110/120V, 6.8 GPMItem number27a45hilp



240 Volts
GE GE08SNHPDG Point-of-Use Tankless Electric Water Heater - 240V, 8kW, 1.7 GPMItem number865ge08snhpdg



240 Volts
GE GE18SNHPDG Whole House Tankless Electric Water Heater - 240V, 18kW, 3.79 GPMItem number865ge18snhpdg



Liquid Propane
Rinnai SENSEI CXP160iN Natural Gas / Liquid Propane Wall-Mounted Indoor / Outdoor Tankless Water Heater - 120V, 160,000 BTU, 9.0 GPMItem number61bcxp16in



120 Volts
Stiebel Eltron 236135 Mini-E 2.5-1 Point-of-Use Tankless Electric Water Heater - 120V, 2.4kW, 0.30 GPMItem number798236135
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240 Volts
Stiebel Eltron 239223 Tempra 29 Plus Whole House Tankless Electric Water Heater - 21.6/28.8 kW, 0.87 GPMItem number798239223
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Liquid Propane
Rinnai TRW03CXiN Wall-Mounted 3 Unit Tankless Rack System with SENSEI CX199i Water Heaters - 120V, 597,000 BTU, 16.2 GPMItem number61btrw03cxi


Liquid Propane
Rinnai TRS02ILCXiN Freestanding 2 Unit Tankless Rack System with SENSEI CX199i Water Heaters - 120V, 398,000 BTU, 10.8 GPMItem number61btrs2ilcxi



240 Volts
Stiebel Eltron 239222 Tempra 24 Plus Whole House Tankless Electric Water Heater - 18/24 kW, 0.58 GPMItem number798239222


208/240 Volts
Stiebel Eltron 202145 DHC-E Plus Tankless Electric Water Heater - 208/240V, 5.4/9.6 kW, 0.264 GPMItem number798202145
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Liquid Propane
Eccotemp EL7 Liquid Propane Portable Outdoor Tankless Water Heater - 52,500 BTU, 1.85 GPMItem number27ael7


120 Volts
Stiebel Eltron 200057 DHC-E Trend Tankless Electric Water Heater - 120V, 3/3.5 kW, 0.264 GPMItem number798200057
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Liquid Propane
Eccotemp L5 Liquid Propane Portable Outdoor Tankless Water Heater - 37,500 BTU, 1.5 GPMItem number27al5


208/240 Volts
Stiebel Eltron 202650 DHC 5-2 Classic Point-of-Use Tankless Electric Water Heater - 208/240V, 3.6/4.8kW, 0.43 GPMItem number798202650


208/240 Volts
Stiebel Eltron 203672 DHC-E 12 Multiple Point-of-Use Tankless Electric Water Heater - 208/240V, 9/12kW, 0.264 GPMItem number798203672



240 Volts
Ariston SM 10.5 240V Aures Slim Multi Point-of-Use Tankless Electric Water Heater - 240V, 10.5kW, 2 GPMItem number53bsm105240v



110 Volts
Ariston SM 3 CB 110V Aures Slim Multi Point-of-Use Tankless Electric Water Heater - 110V, 3.1-3.5kW, 0.6 GPMItem number53bsm3cb110v



240 Volts
Ariston SM 6.5 240V Aures Slim Multi Point-of-Use Tankless Electric Water Heater - 240V, 6.5kW, 1.3 GPMItem number53bsm65240v



Liquid Propane
Eccotemp 6.5GB-ILP Liquid Propane Indoor Tankless Water Heater - 110/120V, 6.5 GPMItem number27a65gbilp



Liquid Propane
Eccotemp 6.8GB-ILP 6.8 GB Series Liquid Propane Wall-Mounted Indoor Tankless Water Heater - 110/120V, 6.8 GPMItem number27a68gbilp



Liquid Propane
Eccotemp 6.8GB-LP 6.8 GB Series Liquid Propane Outdoor Wall-Mounted Tankless Water Heater - 110/120V, 6.8 GPMItem number27a68gblp



Natural Gas
Eccotemp 6.8GB-NG 6.8 GB Series Natural Gas Outdoor Wall-Mounted Tankless Water Heater - 110/120V, 6.8 GPMItem number27a68gbng



Liquid Propane
Eccotemp EL5 Liquid Propane Portable Outdoor Tankless Water Heater - 37,500 BTU, 1.5 GPMItem number27ael5



Natural Gas
Eccotemp SH12-A-NG SmartHome Natural Gas WiFi Enabled Indoor Tankless Water Heater with Mobile App and Voice Command - 120V, 4.0 GPMItem number27ash12ang



Liquid Propane
Eccotemp SH22-LP SmartHome Liquid Propane Wi-Fi Enabled Outdoor Tankless Water Heater with Mobile App and Voice Command - 120V, 6.8 GPMItem number27ash22lp



Natural Gas
Eccotemp SH22-NG SmartHome Natural Gas Wi-Fi Enabled Outdoor Tankless Water Heater with Mobile App and Voice Command - 120V, 6.8 GPMItem number27ash22ng



240 Volts
GE GE15SNHPDG Point-of-Use Tankless Electric Water Heater - 240V, 14.6kW, 2.9 GPMItem number865ge15snhpdg



Natural Gas
Rinnai RE140iN Natural Gas Wall-Mounted Indoor Tankless Water Heater - 120V, 140,000 BTU, 5.3 GPMItem number61bre140in



Liquid Propane
Rinnai RE140iP Liquid Propane Wall-Mounted Indoor Tankless Water Heater - 120V, 140,000 BTU, 5.3 GPMItem number61bre140ip



Natural Gas
Rinnai RE180eN Natural Gas Wall-Mounted Outdoor Tankless Water Heater - 120V, 180,000 BTU, 8.5 GPMItem number61bre180en



Natural Gas
Rinnai RE180iN Natural Gas Wall-Mounted Indoor Tankless Water Heater - 120V, 180,000 BTU, 8.5 GPMItem number61bre180in



Liquid Propane
Rinnai RE180iP Liquid Propane Wall-Mounted Indoor Tankless Water Heater - 120V, 180,000 BTU, 8.5 GPMItem number61bre180ip



Natural Gas
Rinnai RE199eN Natural Gas Wall-Mounted Outdoor Tankless Water Heater - 120V, 199,000 BTU, 9.8 GPMItem number61bre199en



Natural Gas
Rinnai RE199iN Natural Gas Wall-Mounted Indoor Tankless Water Heater - 120V, 199,000 BTU, 9.8 GPMItem number61bre199in



Liquid Propane
Rinnai RE199iP Liquid Propane Wall-Mounted Indoor Tankless Water Heater - 120V, 199,000 BTU, 9.8 GPMItem number61bre199ip



Liquid Propane
Rinnai SENSEI RX130iN Natural Gas / Liquid Propane Wall-Mounted Indoor / Outdoor Tankless Water Heater - 120V, 130,000 BTU, 7.1 GPMItem number61brx130in



Liquid Propane
Rinnai SENSEI RXP160iN Natural Gas / Liquid Propane Wall-Mounted Indoor / Outdoor Tankless Water Heater with Recirculation Pump - 120V, 160,000 BTU, 9.0 GPMItem number61brxp160in


Liquid Propane
Rinnai TRS03CXiN Freestanding 3 Unit Tankless Rack System with SENSEI CX199i Water Heaters - 120V, 597,000 BTU, 16.2 GPMItem number61btrs03cxi


Liquid Propane
Rinnai TRS03ILCXiN Freestanding 3 Unit Tankless Rack System with SENSEI CX199i Water Heaters - 120V, 597,000 BTU, 16.2 GPMItem number61btrs3ilcxi


Liquid Propane
Rinnai TRS04CXiN Freestanding 4 Unit Tankless Rack System with SENSEI CX199i Water Heaters - 120V, 796,000 BTU, 21.6 GPMItem number61btrs04cxi


Liquid Propane
Rinnai TRS05CXiN Freestanding 5 Unit Tankless Rack System with SENSEI CX199i Water Heaters - 120V, 995,000 BTU, 27 GPMItem number61btrs05cxi


Liquid Propane
Rinnai TRS06CXiN Freestanding 6 Unit Tankless Rack System with SENSEI CX199i Water Heaters - 120V, 1,194,000 BTU, 32.4 GPMItem number61btrs06cxi


Liquid Propane
Rinnai TRW02CXiN Wall-Mounted 2 Unit Tankless Rack System with SENSEI CX199i Water Heaters - 120V, 398,000 BTU, 10.8 GPMItem number61btrw02cxi


Liquid Propane
Rinnai TRW02CXPiN Wall-Mounted 2 Unit Tankless Rack System with SENSEI CXP199i Water Heaters - 120V, 398,000 BTU, 10.8 GPMItem number61btrw2cxpin


Liquid Propane
Rinnai TRW03CXPiN Wall-Mounted 3 Unit Tankless Rack System with SENSEI CX199i Water Heaters - 120V, 597,000 BTU, 16.2 GPMItem number61btrw3cxpin



Liquid Propane
Rinnai TRX02CXiN Wall-Mounted Compact 2 Unit Tankless Rack System with SENSEI CX199i Water Heaters - 120V, 398,000 BTU, 10.8 GPMItem number61btrx02cxi


208/240 Volts
Stiebel Eltron 200056 DHC-E Plus Tankless Electric Water Heater - 208/240V, 9/14.4 kW, 0.264 GPMItem number798200056
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208/240 Volts
Stiebel Eltron 200058 DHC-E Trend Tankless Electric Water Heater - 208/240V, 5.4/9.6 kW, 0.264 GPMItem number798200058
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208/240 Volts
Stiebel Eltron 200059 DHC-E Trend Tankless Electric Water Heater - 208/240V, 9/14.4 kW, 0.264 GPMItem number798200059
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120 Volts
Stiebel Eltron 200060 DHC Trend Tankless Electric Water Heater - 120V, 3/3.5 kW, 0.264 GPMItem number798200060
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208/240 Volts
Stiebel Eltron 200061 DHC-E Trend Tankless Electric Water Heater - 208/240V, 2.9/6 kW, 0.264 GPMItem number798200061
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208/240 Volts
Stiebel Eltron 200062 DHC Trend Tankless Electric Water Heater - 208/240V, 2.9/6 kW, 0.264 GPMItem number798200062
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208/240 Volts
Stiebel Eltron 200063 DHC Trend Tankless Electric Water Heater - 208/240V, 5.4/9.6 kW, 0.264 GPMItem number798200063
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208/240 Volts
Stiebel Eltron 200064 DHC Trend Tankless Electric Water Heater - 208/240V, 9/14.4 kW, 0.264 GPMItem number798200064
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120 Volts
Stiebel Eltron 202646 DHC 3-1 Classic Point-of-Use Tankless Electric Water Heater - 120V, 3 kW, 0.32 GPMItem number798202646


208/240 Volts
Stiebel Eltron 202647 DHC 3-2 Classic Point-of-Use Tankless Electric Water Heater - 208/240V, 2.5/3.3kW, 0.32 GPMItem number798202647


208/240 Volts
Stiebel Eltron 202648 DHC 4-2 Classic Point-of-Use Tankless Electric Water Heater - 208/240V, 2.9/3.8kW, 0.43 GPMItem number798202648


277 Volts
Stiebel Eltron 202649 DHC Classic Copper Point-of-Use Tankless Electric Water Heater - 277V, 4.5 kWItem number798202649


208/240 Volts
Stiebel Eltron 202651 DHC 6-2 Classic Point-of-Use Tankless Electric Water Heater - 208/240V, 4.5/6.0kW, 0.48 GPMItem number798202651


277 Volts
Stiebel Eltron 202652 DHC Classic Copper Point-of-Use Tankless Electric Water Heater - 277V, 6 kWItem number798202652


208/240 Volts
Stiebel Eltron 202653 DHC 8-2 Classic Point-of-Use Tankless Electric Water Heater - 208/240V, 5.4/7.2kW, 0.69 GPMItem number798202653


277 Volts
Stiebel Eltron 202654 DHC Classic Copper Point-of-Use Tankless Electric Water Heater - 277V, 9 kWItem number798202654


208/240 Volts
Stiebel Eltron 202655 DHC 10-2 Classic Point-of-Use Tankless Electric Water Heater - 208/240V, 7.2/9.6kW, 0.8 GPMItem number798202655


208 Volts
Stiebel Eltron 203671 DHC-E 8/10 Multiple Point-of-Use Tankless Electric Water Heater - 208V, 9.6 kW, 0.37 GPMItem number798203671
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208 Volts
Stiebel Eltron 220817 Mini 6 Point-of-Use Tankless Electric Water Heater - 208V, 5.7 kW, 0.77 GPMItem number798220817b
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208 Volts
Stiebel Eltron 222039 Mini 4 Point-of-Use Tankless Electric Water Heater - 208V, 3.5 kW, 0.40 GPMItem number798222039b
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208-240 Volts
Stiebel Eltron 236008 Mini-E 6-2 Point-of-Use Tankless Electric Water Heater - 208/240V, 4.3/5.7kW, 0.30 GPMItem number798236008



208-240 Volts
Stiebel Eltron 236009 Mini-E 4-2 Point-of-Use Tankless Electric Water Heater - 208/240V, 2.6/3.5kW, 0.30 GPMItem number798236009



120 Volts
Stiebel Eltron 236010 Mini-E 3-1 Point-of-Use Tankless Electric Water Heater - 120V, 3.0kW, 0.30 GPMItem number798236010



120 Volts
Stiebel Eltron 236011 Mini-E 2-1 Point-of-Use Tankless Electric Water Heater - 120V, 1.8kW, 0.21 GPMItem number798236011



208 Volts
Stiebel Eltron 239213 Tempra 12 Trend Whole House Tankless Electric Water Heater - 9.0/12.0 kW, 0.37 GPMItem number798239213
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208 Volts
Stiebel Eltron 239214 Tempra 15 Trend Whole House Tankless Electric Water Heater - 10.8/14.4 kW, 0.50 GPMItem number798239214



208 Volts
Stiebel Eltron 239215 Tempra 20 Trend Whole House Tankless Electric Water Heater - 14.4/19.2 kW, 0.50 GPMItem number798239215



208 Volts
Stiebel Eltron 239216 Tempra 24 Trend Tankless Electric Water Heater - 18/24 kW, 0.50 GPMItem number798239216



208 Volts
Stiebel Eltron 239217 Tempra 29 Trend Whole House Tankless Electric Water Heater - 21.6/28.8 kW, 0.77 GPMItem number798239217
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208 Volts
Stiebel Eltron 239218 Tempra 36 Trend Whole House Tankless Electric Water Heater - 27/36 kW, 0.77 GPMItem number798239218
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240 Volts
Stiebel Eltron 239219 Tempra 12 Plus Whole House Tankless Electric Water Heater - 9.0/12.0 kW, 0.37 GPMItem number798239219
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Other Water Treatment Supplies
Perfect for any business looking to keep hot water running from its faucets, whole house electric tankless water heaters are designed to quickly and easily install into your existing water lines to ensure your water is at your preferred temperature. Each electric tankless water heater is made for either single or multiple points of use so you can provide hot water to one or multiple faucets. We also carry heaters with varying wattages so you can find one that works best for your needs.
As an alternative to bulky water heater tanks, our tankless water heaters provide hot water instantaneously, eliminating the risk of running out of hot water. They're also designed for everything from light- to heavy-duty use to work for a number of needs. Whether you need a unit to provide hot water to the whole building, or you just need a smaller point-of-use model, we've got what you're looking for.
Also make sure to check out other great items from Ariston Group, Eccotemp Systems, GE Appliances, Rinnai and Stiebel Eltron.