#1 Home Improvement Retailer

Cart

Cart

Home
Plumbing
Water Heaters
Tankless Water Heaters
Tankless Gas Water Heaters

Tankless Gas Water Heaters

59 Results
Filters
Filters
Clear All

Get It Fast

caret-icon

Department

caret-icon
Tankless Gas Water Heaters

Review Rating

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

Brand

caret-icon

Price

caret-icon
to

Gas Type

caret-icon

Number of Showers

caret-icon

Efficiency Level

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

Eco Friendly

caret-icon

Let Us Do It For You

caret-icon

    Sort by

    Top Sellers
High Efficiency 7.5 GPM Residential 180,000 BTU Natural Gas Interior Tankless Water Heater
Expert Installation Available
(4.3 / 589)
Model# V75iN
Limit 10 per order
$899.99
Was $993.40
Save $93.41 (9%)
Buy 3 or more $809.99
Value Series Outdoor 5.3 GPM Residential 120,000 BTU Propane Gas Tankless Water Heater
Expert Installation Available
(4.3 / 69)
Model# V53DeP
$602.55
Was $669.50
Save $66.95 (10%)
Buy 3 or more $542.30
Value Series Outdoor 5.3 GPM Residential 120,000 BTU Natural Gas Tankless Water Heater
Expert Installation Available
(4.3 / 68)
Model# V53DeN
$602.55
Was $669.50
Save $66.95 (10%)
Buy 3 or more $542.30
Top Rated
Deluxe on Demand 4.4 GPM 85,000 BTU Propane Gas Tankless Water Heater
(4.3 / 61)
Model# EZDLXLPG
$579.99
Buy 3 or more $521.99
Deluxe on Demand 4.4 GPM 85,000 BTU Natural Gas Tankless Water Heater
(3.7 / 69)
Model# EZDLXNG
$579.99
Buy 3 or more $521.99
Supreme on Demand 8.2 GPM 165,000 BTU Natural Gas Tankless Water Heater
(4.5 / 23)
Model# EZSUPNG
$824.95
Buy 3 or more $742.46
Supreme On Demand 8.2 GPM 165,000 BTU LPG Propane Gas Tankless Water Heater
(4.4 / 14)
Model# EZSUPLPG
$824.95
Buy 3 or more $742.46
Comfortech Classic CS80 4.1 GPM 80,000-BTU Residential Natural Gas Tankless Water Heater, Indoor
(4.3 / 8)
Model# FDG-CS80W-NG
$399.99
Was $469.99
Save $70.00 (15%)
Greentherm T9900 SE 160 - 9 GPM Residential Natural Gas and/or Liquid Propane High Efficiency Gas Tankless Water Heater
(2.2 / 5)
Model# 7736503730
Limit 3 per order
$2,079.33
Buy 3 or more $1,871.40
InstaShower 8 Plus FS08B1SWD 2.9 GPM 55,000 BTU RV Tankless Water Heater Gen 2, with White Door and Remote ControllerInstaShower 8 Plus FS08B1SWD 2.9 GPM 55,000 BTU RV Tankless Water Heater Gen 2, with White Door and Remote Controller
(4 / 4)
Model# FS08B1SWD
$569.99
Buy 3 or more $512.99
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
Ultra HE on Demand 4.4 GPM 70,000 BTU Natural Gas Condensing Tankless Water Heater
(4.2 / 28)
Model# EZULTNG
$669.95
Buy 3 or more $602.96