Home Plumbing Water Heaters & Repair Water Heaters Tankless Water Heaters Gas

Tankless Gas Water Heaters

HD Supply offers a large assortment of Tankless Water Heaters, with Natural Gas and Propane options for your continuous hot water needs.

Noritz
Noritz
Rinnai
Rinnai
AO Smith
AO Smith
Shop All Gas Tankless Water Heaters
Shop All Gas Tankless Water Heaters

Noritz

Noritz Tankless Gas Water Heaters

Noritz has been an innovator in the water heating industry for over 60 years. The compact design of the Noritz line of tankless hot water heaters gives you installation flexibility. Designed for placement indoors or outdoors, a Noritz unit saves space and can go almost anywhere.

HDS Part Number BTU Heat Rating Indoor/Outdoor Commercial/Residential Gas Type Minimum Gallons Per Minute Maximum Gallons Per Minute
288399120000OutdoorResidentialNatural Gas0.55
286543120000IndoorResidentialPropane0.56.6
295662120000OutdoorResidentialNatural Gas0.56.6
288488120,000IndoorResidentialPropane0.56.6
286928120,000IndoorResidentialNatural Gas0.56.6
296366140000OutdoorResidentialPropane0.56.6
299512140000OutdoorResidentialNatural Gas0.56.6
280808157000IndoorResidentialNatural Gas0.57.1
299588157000OutdoorResidentialPropane0.57.1
324894157000OutdoorResidentialNatural Gas0.57.1
325195165000IndoorResidentialPropane0.59.2
286287165000IndoorResidentialNatural Gas0.59.2
286329180000IndoorResidentialPropane0.59.8
275404180000IndoorResidentialNatural Gas0.59.8
325163180000IndoorResidentialPropane0.59.8
275410180000IndoorResidentialNatural Gas0.59.8
286898180000IndoorResidentialPropane0.59.8
286892180000IndoorResidentialNatural Gas0.59.8
286290199900IndoorResidentialPropane0.511.1
286262199900IndoorResidentialNatural Gas0.511.1
286996199900OutdoorResidentialPropane0.59.8
286999199900OutdoorResidentialNatural Gas0.59.8
287295199900IndoorResidentialNatural Gas0.59.8
297755199900IndoorCommercialPropane0.59.8
287086199900OutdoorResidentialNatural Gas0.511.1
286548199900OutdoorResidentialPropane0.511.1
279764199900OutdoorResidentialNatural Gas0.511.1
288394199900IndoorResidentialPropane0.511.1

Rinnai

Rinnai Tankless Gas Water Heaters

Rinnai is the first major tankless brand assembled in the U.S.A. With over a 100-year history, Rinnai has a proven commitment to the quality, safety, and support behind everything they do. Rinnai tankless water heaters have a longer lifespan of up to twice as long as a traditional tank.

HDS Part Number BTU Heat Rating Indoor/Outdoor Commercial/Residential Gas Type Minimum Gallons Per Minute Maximum Gallons Per Minute
281198160000IndoorResidentialNatural Gas0.268
273304160000IndoorIndoorNatural Gas0.268
288290180000IndoorIndoorNatural Gas0.269
281270180000OutdoorResidentialNatural Gas0.138.5
281373180000OutdoorResidentialPropane0.138.5
281863180000IndoorResidentialNatural Gas0.138.5
319916199,000OutdoorResidentialNatural Gas0.139.8
320748199,000OutdoorResidentialPropane0.139.8
281297199,000IndoorResidentialNatural Gas0.139.8
319805199,000IndoorResidentialPropane0.139.8
281287199,000OutdoorResidentialNatural Gas0.269.8
281235199,000IndoorResidentialNatural Gas0.269.8
281181199,000IndoorResidentialPropane0.269.8
279286199,000IndoorIndoorNatural Gas0.269.8
287241199,000IndoorIndoorPropane0.269.8

A.O. Smith

A.O. Smith Tankless Gas Water Heaters

For over 70 years, A.O. Smith has provided innovative and dependable hot water solutions. A.O. Smith operates the world's largest water heater factory and offers high-efficiency Tankless Water Heaters that's right for your property's needs and budget.

HDS Part Number BTU Heat Rating Indoor/Outdoor Commercial/Residential Gas Type Minimum Gallons Per Minute Maximum Gallons Per Minute
754125120,000IndoorResidentialNatural Gas0.56.6
837710120,000OutdoorCommercial/ResidentialNatural Gas0.56.6
837690140000IndoorCommercial/ResidentialNatural Gas0.56.6
837712140,000IndoorCommercial/ResidentialNatural Gas0.56.6
837713140,000OutdoorCommercial/ResidentialNatural Gas0.56.6
837718160,000IndoorCommercial/ResidentialNatural Gas0.56.6
837719160,000IndoorCommercial/ResidentialPropane0.56.6
837706160,000OutdoorCommercial/ResidentialNatural Gas0.56.6
837708160,000OutdoorCommercial/ResidentialPropane0.56.6
837683180,000IndoorCommercial/ResidentialNatural Gas0.58
837684180,000IndoorCommercial/ResidentialPropane0.58
837685180,000OutdoorCommercial/ResidentialNatural Gas0.58
837686180,000OutdoorCommercial/ResidentialPropane0.58
837688190,000IndoorCommercial/ResidentialNatural Gas0.58
837693190,000IndoorCommercial/ResidentialPropane0.58
837714190,000IndoorCommercial/ResidentialNatural Gas0.58
837715190,000OutdoorCommercial/ResidentialNatural Gas0.58
627551199,000IndoorCommercial/ResidentialNatural Gas0.510
837703199,000IndoorCommercial/ResidentialPropane0.510
837717199,000OutdoorCommercial/ResidentialNatural Gas0.510
837707199,000OutdoorCommercial/ResidentialNatural Gas0.58
837709199,000OutdoorCommercial/ResidentialPropane0.510
837704199,000OutdoorCommercial/ResidentialNatural Gas0.510