#1 Home Improvement Retailer

Cart

Cart

Home
Plumbing
Water Heaters
Tankless Water Heaters
Tankless Gas Water Heaters

Tankless Gas Water Heaters

7 Results
Filters
Filters
Clear All

Get It Fast

caret-icon

Department

caret-icon
Tankless Gas Water Heaters

Review Rating

caret-icon
4 & Up3 & Up2 & Up1 & Up0

Brand

caret-icon

Price

caret-icon
to

Gas Type

caret-icon

Part Warranty

caret-icon

Maximum Flow Rate (gallons per minute)

caret-icon

Water Heater Features

caret-icon

Application Type

caret-icon

BTU Rating

caret-icon

Indoor/Outdoor

caret-icon

    Sort by

    Top Sellers
InstaGas Classic CS120S 5.1 GPM 120,000 BTU Residential Natural Gas Tankless Water Heater, Outdoor White
(3.8 / 4)
Model# 420OD-CS120S-NG
$499.99
Was $520.59
Save $20.60 (4%)
Buy 3 or more $449.99
Comfortech Classic CS 100W 4.6 GPM 100,000-BTU Residential Natural Gas Tankless Water Heater, Indoor
(4.3 / 8)
Model# FDG-CS100W-NG
$479.99
Buy 3 or more $431.99
Smart 4.22 GPM 102,000 BTU Indoor Propane Tankless Water Heater with Vent KitSmart 4.22 GPM 102,000 BTU Indoor Propane Tankless Water Heater with Vent Kit
(4.3 / 7)
Model# CA422GLP-WT
$500.00
/piece
5.28 GPM 136,000 BTU Outdoor Portable Propane Tankless Water Heater5.28 GPM 136,000 BTU Outdoor Portable Propane Tankless Water Heater
(3.5 / 4)
Model# BW528
$469.99
/piece
Comfortech Classic CS100W 4.3 GPM 100,000 BTU Propane Gas Tankless Water Heater, Indoor White
Model# FDG-CS100W-LP
$431.19
Buy 3 or more $388.07
InstaGas Classic CS120 5.1 GPM 120,000-BTU Residential Propane Gas Tankless Water Heater, Indoor White
Model# 420IN-CS120-LP
$499.99
Was $568.39
Save $68.40 (12%)
Buy 3 or more $449.99
Smart 3.18 GPM 82,000 BTU Propane Tankless Water Heater with Vent Pipe, Indoor WhiteSmart 3.18 GPM 82,000 BTU Propane Tankless Water Heater with Vent Pipe, Indoor White
(4.2 / 6)
Model# CA318W-LPN1
$409.99
/piece
Buy 3 or more $368.99

Installation Services

Tankless Water Heater Installation

Get started with a free consultation, where we'll ensure a tankless unit will fit your space and review the best options for your budget and needs
Learn More