tanklesswaterheaterprices

Propane tankless water heater prices

Whole-home tankless heaters for liquid propane (LP), from the big brands and the newer direct-to-consumer makers. 49 models from 6 stores, with prices checked daily.

Check the size your household needs and what it costs to run.

Best value ($/GPM)

$97

ThermoMate CZ422LP Indoor Tankless Water Heater, 4.4 GPM, Propane · ThermoMate (official store)

Cheapest heater

$300

ThermoMate CZ264LP Indoor Tankless Water Heater, 2.9 GPM, Propane · ThermoMate (official store)

Typical $/GPM

$172

Median across 42 in-stock listings

Store
All stores
Brand
All brands
49 listings
Water heaterStoreCheckedBuy
ThermoMate CZ422LP Indoor Tankless Water Heater, 4.4 GPM, Propane
ThermoMatePropane
113k BTU4.14.4--ThermoMate (official store)$400$97todayView deal
ThermoMate CZ360LP Indoor Tankless Water Heater, 4.05 GPM, Propane
ThermoMatePropane
98.5k BTU3.64.05--ThermoMate (official store)$360$100todayView deal
Camplux CX422 Indoor Tankless Water Heater, 4.22 GPM, Propane
CampluxPropane
102k BTU3.74.22--Camplux (official store)$400$108todayView deal
ThermoMate CZ264LP Indoor Tankless Water Heater, 2.9 GPM, Propane
ThermoMatePropane
75k BTU2.72.9--ThermoMate (official store)$300$110todayView deal
Camplux CX360 Indoor Tankless Water Heater, 3.6 GPM, Propane
CampluxPropane
82k BTU3.03.6--Camplux (official store)$360$120todayView deal
Takagi T-H3S-OS-P Condensing Outdoor Tankless Water Heater, Propane
TakagiPropaneOutdoorCondensing
180k BTU7.580.94PEX Universe$906$120todayView deal
Takagi T-H3J-OS-P Condensing Outdoor Tankless Water Heater, Propane
TakagiPropaneOutdoorCondensing
160k BTU6.66.60.95PEX Universe$796$121todayView deal
Camplux CM264 Indoor Tankless Water Heater, 2.64 GPM, Propane
CampluxPropane
68k BTU2.52.64--Camplux (official store)$300$121todayView deal
Camplux CX264 Indoor Tankless Water Heater, 2.64 GPM, Propane
CampluxPropane
68k BTU2.52.64--Camplux (official store)$300$121todayView deal
ThermoMate CZ480LP Indoor Tankless Water Heater, 5.28 GPM, Propane
ThermoMatePropaneCondensing
114k BTU4.65.280.91ThermoMate (official store)$560$121todayView deal
Camplux CA318 Indoor Tankless Water Heater, 3.18 GPM, Propane
CampluxPropane
82k BTU3.03.18--Camplux (official store)$400$134todayView deal
Rheem Performance Plus ECO160DVLP-3 Non-Condensing Tankless Water Heater, Indoor, Propane
RheemPropane
160k BTU5.87 @35°0.82The Home Depot$797$137todayView deal
Rinnai RUCS75iP Super High Efficiency Condensing Tankless Water Heater, Indoor, Propane
RinnaiPropaneCondensingEnergy Star
160k BTU6.47.50.9The Home Depot$899$140todayView deal
Rinnai RUS75eP Super High Efficiency Condensing Tankless Water Heater, Outdoor, Propane
RinnaiPropaneOutdoorCondensing
160k BTU6.37.50.89The Home Depot$899$142todayView deal
Laars LT199 Condensing Indoor Tankless Water Heater, Propane
LaarsPropaneCondensingEnergy Star
199k BTU8.511.1 @35°0.96PEX Universe$1,246$147todayView deal
Eccotemp SmartHome SH22 Indoor Tankless Water Heater, 6.8 GPM, Propane
EccotempPropane
140k BTU5.16.8 @35°--Eccotemp (official store)$769$151todayView deal
Noritz NR501-OD Non-Condensing Outdoor Tankless Water Heater, Propane
NoritzPropaneOutdoor
120k BTU4.450.82SupplyHouse.com$669$153todayView deal
Rheem Performance Platinum ECOH200DVELP-3 Condensing Tankless Water Heater, Propane
RheemPropaneCondensing
199.9k BTU8.39.5 @35°0.93The Home Depot$1,299$157todayView deal
Rheem Performance Plus ECO200DVELP-3 Non-Condensing Tankless Water Heater, Indoor, Propane
RheemPropane
199.9k BTU7.39.5 @35°0.82The Home Depot$1,149$158todayView deal
Eccotemp SmartHome SH12-A Indoor Tankless Water Heater, 4.0 GPM, Propane
EccotempPropane
80k BTU2.94--Eccotemp (official store)$499$171todayView deal
Rinnai V53DeP Value Series Non-Condensing Outdoor Tankless Water Heater, Propane
RinnaiPropaneOutdoor
120k BTU4.35.30.81The Home Depot$742$172todayView deal
Rinnai RE160eP Non-Condensing Tankless Water Heater, Outdoor, Propane
RinnaiPropaneOutdoor
160k BTU5.86.60.81The Home Depot$993$172todayView deal
Rinnai RE160iP Non-Condensing Tankless Water Heater, Indoor, Propane
RinnaiPropane
160k BTU5.86.60.81The Home Depot$993$172todayView deal
Rinnai RUCS65iP Super High Efficiency Condensing Tankless Water Heater, Indoor, Propane
RinnaiPropaneCondensing
130k BTU4.96.50.85The Home Depot$849$173todayView deal
Rinnai RE140iP Non-Condensing Tankless Water Heater, Indoor, Propane
RinnaiPropane
140k BTU5.05.30.81The Home Depot$884$175todayView deal
Rinnai Sensei RX199iN Condensing Tankless Water Heater, Indoor/Outdoor
RinnaiNG or LPIndoor/outdoorCondensingEnergy Star
199k BTU8.7110.98The Home Depot$1,533$177todayView deal
Rinnai Sensei RX180iN Condensing Tankless Water Heater, Indoor/Outdoor
RinnaiNG or LPIndoor/outdoorCondensingEnergy Star
180k BTU7.8100.98The Home Depot$1,410$180todayView deal
Rinnai RE180iP Non-Condensing Tankless Water Heater, Indoor, Propane
RinnaiPropane
180k BTU6.68.50.82The Home Depot$1,212$185todayView deal
Rinnai Sensei RX160iN Condensing Tankless Water Heater, Indoor/Outdoor
RinnaiNG or LPIndoor/outdoorCondensingEnergy Star
160k BTU6.990.97The Home Depot$1,298$188todayView deal
Eccotemp SmartHome SHLX Indoor Tankless Water Heater, 4.5 GPM, Propane
EccotempPropane
80k BTU2.94.5--Eccotemp (official store)$549$188todayView deal
Rinnai RE199eP Non-Condensing Tankless Water Heater, Outdoor, Propane
RinnaiPropaneOutdoor
199k BTU7.39.80.82The Home Depot$1,391$192todayView deal
Rinnai RE199iP Non-Condensing Tankless Water Heater, Indoor, Propane
RinnaiPropane
199k BTU7.39.80.82The Home Depot$1,423$196todayView deal
A.O. Smith ProLine XE ATI-310U Non-Condensing Indoor Tankless Water Heater, NG/LP
A.O. SmithNG or LP
190k BTU6.880.81SupplyHouse.com$1,379$202todayView deal
Rinnai Sensei RX130iN Condensing Tankless Water Heater, Indoor/Outdoor
RinnaiNG or LPIndoor/outdoorCondensingEnergy Star
130k BTU5.67.10.97The Home Depot$1,138$203todayView deal
Noritz EZ98DV Condensing Indoor/Outdoor Tankless Water Heater, Propane
NoritzPropaneIndoor/outdoorCondensing
180k BTU7.89.8 @30°0.98SupplyHouse.com$1,639$209todayView deal
Rinnai REP199iP Non-Condensing Tankless Water Heater with Recirculation Pump, Indoor, Propane
RinnaiPropaneRecirc
199k BTU7.37.90.82The Home Depot$1,535$212todayView deal
Rinnai Sensei RXP199iN Condensing Tankless Water Heater with Recirculation Pump
RinnaiNG or LPIndoor/outdoorCondensingRecircEnergy Star
199k BTU8.7110.98The Home Depot$1,861$215todayView deal
Noritz NRC111DV Condensing Indoor Direct Vent Tankless Water Heater, Propane
NoritzPropaneCondensing
199.9k BTU8.111.1 @30°0.91SupplyHouse.com$1,819$225todayView deal
Noritz NR98DVC Non-Condensing Indoor Concentric Direct Vent Tankless Water Heater, Propane
NoritzPropane
199.9k BTU7.39.80.82SupplyHouse.com$1,642$225todayView deal
Noritz NRC711-DV Condensing Indoor Direct Vent Tankless Water Heater, Propane
NoritzPropaneCondensing
157k BTU6.27.10.89SupplyHouse.com$1,475$238todayView deal
Noritz NRC661-DV Condensing Indoor Direct Vent Tankless Water Heater, Propane
NoritzPropaneCondensing
120k BTU4.76.60.89SupplyHouse.com$1,188$250todayView deal
Bosch Greentherm T9900 SE 199 Condensing Tankless Water Heater with Recirculation Pump
BoschNG or LPCondensingRecircEnergy Star
199k BTU8.411.2 @35°0.95The Home Depot$2,363$281todayView deal
Noritz NRC98DV Condensing Indoor Direct Vent Tankless Water Heater, Propane
NoritzPropaneCondensingOut of stock
180k BTU7.29.8 @30°0.9SupplyHouse.com$1,599$222todayView deal
Navien NPE-240S2 Condensing Tankless Water Heater
NavienNG or LPIndoor/outdoorCondensingEnergy StarOut of stock
199.9k BTU8.511.2 @35°0.96PEX Universe$1,898$223todayView deal
Navien NPE-240A2 Condensing Tankless Water Heater with ComfortFlow Recirculation
NavienNG or LPIndoor/outdoorCondensingRecircEnergy StarOut of stock
199.9k BTU8.411.2 @35°0.95PEX Universe$1,880$223todayView deal
Navien NPE-210S2 Condensing Tankless Water Heater
NavienNG or LPIndoor/outdoorCondensingEnergy StarOut of stock
180k BTU7.710.1 @35°0.96PEX Universe$1,999$260todayView deal
Navien NPE-180S2 Condensing Tankless Water Heater
NavienNG or LPIndoor/outdoorCondensingEnergy StarOut of stock
150k BTU6.48.4 @35°0.96PEX Universe$1,999$312todayView deal
Navien NPE-210A2 Condensing Tankless Water Heater with ComfortFlow Recirculation
NavienNG or LPIndoor/outdoorCondensingRecircEnergy StarOut of stock
180k BTU7.610.1 @35°0.95PEX Universe$2,999$395todayView deal
Navien NPE-180A2 Condensing Tankless Water Heater with ComfortFlow Recirculation
NavienNG or LPIndoor/outdoorCondensingRecircEnergy StarOut of stock
150k BTU6.38.4 @35°0.95PEX Universe$2,999$474todayView deal

$/GPM is the price divided by the hot water flow the heater delivers at a 45 °F temperature rise, worked out from its gas input and UEF. "Box GPM" is the maker's own maximum, often quoted at a much smaller rise, so it is shown but not ranked on. Your rise depends on your incoming water: the sizing calculator works it out from your ZIP.

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