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10 Best Tankless Gas Water Heaters

From leading brands and best sellers available on the web.

45,000 reviews analyzed

#1
Best Choice
RINNAI RXP
Rinnai

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

Fast Delivery
10.0
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1 119 bought in past month
#2
Value for Money
Ranein Pro
Ranein

Ranein Propane Gas Tankless Water Heater with Vent Pipe, Indoor Max 4.3 GPM, 100,000 BTU Instant Hot Water Heater

Fast Delivery
9.1
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1 017 bought in past month
Shipping from Amazon's CA regional warehouses
#3
RINNAI RX1
Rinnai

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

27%OFF

Fast Delivery
8.8
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915 bought in past month
#4
Rinnai RSC
Rinnai

Rinnai RSC199iN Smart-Circ Condensing Gas Tankless Water Heater, Super High Efficiency Plus Natural Gas Water Heater, Up to 11 GPM, Indoor Installation, 199,000 BTU

Fast Delivery
8.8
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813 bought in past month
#5
Noritz NRC
Noritz

Noritz NRCB180DV-NG Indoor Direct Combination Boiler (Standard Vent Convertible) with Built-in Pump, Max 180,000 Dhw, 9.8 Gpm, 100,000 Btuh Space Heating-Natural Gas

Fast Delivery
8.8
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711 bought in past month
#6
RINNAI Ru
Rinnai

RINNAI Ru Series Sensei Se+ Tankless Hot Water Heater: Indoor Installation

Fast Delivery
8.5
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609 bought in past month
#7
Rinnai RL7
Rinnai

Rinnai RL75iN Natural Gas Tankless Water Heater, 7.5-Gallons Per Minute

Fast Delivery
8.5
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507 bought in past month
#8
Rinnai RUC
Rinnai

Rinnai RUCS65IP Ultra Series Tankless Water Heater, White

Fast Delivery
7.3
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405 bought in past month
#9
Rinnai RE1
Rinnai

Rinnai RE140iP Non-Condensing Propane Tankless Water Heater, Up to 5.3 GPM, Indoor Installation, 140,000 BTU

Fast Delivery
7.3
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303 bought in past month
#10
RINNAI V S
Rinnai

RINNAI V Series He Tankless Hot Water Heater: Indoor Installation

Fast Delivery
7.0
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201 bought in past month

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Rinnai V53
Rinnai

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

Fast Delivery
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99 bought in past month
Takagi T-H
Takagi

Takagi T-H3-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater, 10-Gallon Per Minute

Fast Delivery
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Rheem Mid-
Rheem

Rheem Mid-Efficiency 7.0GPM Indoor Liquid Propane Tankless Water Heater

Fast Delivery
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Takagi T-H
TAKAGI

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

Fast Delivery
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Rheem RTG-
Rheem

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

Fast Delivery
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Takagi T-K
TAKAGI

Takagi T-KJr2-IN-LP Indoor Tankless Water Heater, Propane

Fast Delivery
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Mizudo Pro
MIZUDO

Mizudo Propane Gas Tankless Water Heater 3.6 GPM, 12L Indoor Installation Instant Hot Water Heater

Fast Delivery
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Tankless W
DWALE

Tankless Water Heater Natural Gas,4.74GPM 18L Indoor,Instant Hot Gas Water Heater,Constant Natural Water Heater with Fahrenheit Digital Display,Multi-Protection (Black)

Fast Delivery
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Takagi T-H
Takagi

Takagi T-H3M-DV-N Condensing Direct Vent Tankless Water Heater, Natural Gas

Fast Delivery
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