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10 bestOutdoor Tankless Water Heatersof November 2025

112M consumers helped this year.

1

RINNAI RXP199iN Condensing Tankless Water Heater RXP199 Features 0.96 UEF with 199k BTU and Pump.
RINNAI RXP199iN Condensing Tankless Water Heater RXP199 Features 0.96 UEF with 199k BTU and Pump.

Rinnai

9.8

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27% off

2

RINNAI RX160iN Condensing Tankless Water Heater RX160 Features 0.95 UEF with 160k BTU.
RINNAI RX160iN Condensing Tankless Water Heater RX160 Features 0.95 UEF with 160k BTU.

Rinnai

9.6

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3

Rinnai V53DeN Natural Gas Tankless Hot Water Heater, 5.3 GPM, Outdoor Installation
Rinnai V53DeN Natural Gas Tankless Hot Water Heater, 5.3 GPM, Outdoor Installation

Rinnai

9.3

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4

Rheem RTG-70XLP-1 Tankless Water Heater, Grey, Grey
Rheem RTG-70XLP-1 Tankless Water Heater, Grey, Grey

Rheem

9.0

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5

Takagi T-H3M-OS-N Condensing Outdoor Tankless Water Heater, Natural Gas
Takagi T-H3M-OS-N Condensing Outdoor Tankless Water Heater, Natural Gas

TAKAGI

8.8

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Related productsUp to 22% off

CAMPLUX 10L Propane Portable Tankless Water Heater Outdoor, Instant Hot Camping Showers with 3.3 GPM Water Pump & Pipe Strainer

CAMPLUX 10L Propane Portable Tankless Water Heater Outdoor, Instant Hot Camping Showers with 3.3 GPM Water Pump & Pipe Strainer

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CAMPLUX Pro 6L 1.58 GPM Outdoor Portable Propane Tankless Water Heater with 1.2 GPM Water Pump

CAMPLUX Pro 6L 1.58 GPM Outdoor Portable Propane Tankless Water Heater with 1.2 GPM Water Pump

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Camplux 5L Portable Propane Gas Tankless Water Heater, 1.32 GPM Tankless Water Heater with 1.2 GPM Water Pump, Black

Camplux 5L Portable Propane Gas Tankless Water Heater, 1.32 GPM Tankless Water Heater with 1.2 GPM Water Pump, Black

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Eccotemp L5 1.5 GPM Portable Outdoor Tankless Water Heater

Eccotemp L5 1.5 GPM Portable Outdoor Tankless Water Heater

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6

CAMPLUX Propane Water Heater 16L, Tankless Water Heater Propane, Outdoor Water Heater Gas, Camping Water Heater for Off Grid, Cabins
CAMPLUX Propane Water Heater 16L, Tankless Water Heater Propane, Outdoor Water Heater Gas, Camping Water Heater for Off Grid, Cabins

CAMPLUX ENJOY OUTDOOR LIFE

8.5

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7

Rheem Mid-Efficiency 8.4 GPM Outdoor Liquid Propane Tankless Water Heater
Rheem Mid-Efficiency 8.4 GPM Outdoor Liquid Propane Tankless Water Heater

Rheem

8.2

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8

Camplux Tankless Water Heater Propane 5L, Outdoor Gas Water Heaters for RV, Campings, Cabins, Barns, Black AY132B
Camplux Tankless Water Heater Propane 5L, Outdoor Gas Water Heaters for RV, Campings, Cabins, Barns, Black AY132B

CAMPLUX ENJOY OUTDOOR LIFE

7.9

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9

Tankless Water Heater Propane, GASLAND Outdoors 10L 2.64GPM Gas Water Heater, Instant Hot Water Heater, Overheating Protection, Easy to Install, Use for RV Cabin Barn Camping Boat(Black)
Tankless Water Heater Propane, GASLAND Outdoors 10L 2.64GPM Gas Water Heater, Instant Hot Water Heater, Overheating Protection, Easy to Install, Use for RV Cabin Barn Camping Boat(Black)

GASLAND

7.6

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10

Eccotemp L10 Portable Water Heater w/ EccoFlo Diaphragm 12V Pump and Strainer
Eccotemp L10 Portable Water Heater w/ EccoFlo Diaphragm 12V Pump and Strainer

Eccotemp

7.3

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