#1 Home Improvement Retailer

Cart

Cart

Home
Plumbing
Water Heaters
Tankless Water Heaters

Tankless Water Heaters

17 Results
Filters
Filters
Clear All

Get It Fast

caret-icon

Department

caret-icon
Tankless Water Heaters

Review Rating

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

Brand

caret-icon

Price

caret-icon
to

Part Warranty

caret-icon

Flow Rate @ 35°F Rise (gallons/min)

caret-icon

Wattage (watts)

caret-icon

Let Us Do It For You

caret-icon

Savings Center

caret-icon

    Sort by

    Top Sellers
Best Seller
Performance 18 kW 3.51 GPM 240-Volt Self-Modulating Electric Tankless Water HeaterPerformance 18 kW 3.51 GPM 240-Volt Self-Modulating Electric Tankless Water Heater
Expert Installation Available
(3.9 / 2570)
Model# RETEX-18
$459.00
Buy 3 or more $413.10
18 kW 3.51 GPM 240-Volt Electric Tankless Water Heater18 kW 3.51 GPM 240-Volt Electric Tankless Water Heater
Expert Installation Available
(4.1 / 1950)
Model# ECO 18
$347.56
Buy 3 or more $312.80
220-Volt/240-Volt 18 Kw 3.7 GPM Smart Electric Tankless Water Heater220-Volt/240-Volt 18 Kw 3.7 GPM Smart Electric Tankless Water Heater
(4.8 / 19)
Model# opti18
$599.00
SCR-4 18 kW 5.0 GPM Residential Electric Tankless Water Heater
(4.4 / 53)
Model# N-180
$410.00
/box
Buy 3 or more $369.00
ENVO Atami 18 kW 3.5 GPM Residential Single Phase Indoor Tankless Electric Water Heater with Limited Lifetime WarrantyENVO Atami 18 kW 3.5 GPM Residential Single Phase Indoor Tankless Electric Water Heater with Limited Lifetime Warranty
(4.3 / 113)
Model# WH-AZ018-M3
$280.00
Was $349.99
Save $69.99 (20%)
Buy 3 or more $252.00
EEM24018 Tankless Electric Water Heater 18 kW 240 VEEM24018 Tankless Electric Water Heater 18 kW 240 V
(3.9 / 70)
Model# EEM24018
$416.51
Buy 3 or more $374.86
Top Rated
Plus 220-Volt/240-Volt 18 Kw 3.7 GPM Wi-Fi Enabled Smart Electric Tankless Water HeaterPlus 220-Volt/240-Volt 18 Kw 3.7 GPM Wi-Fi Enabled Smart Electric Tankless Water Heater
(5 / 19)
Model# opti18plus
Limit 5 per order
$594.00
Was $699.00
Save $105.00 (15%)
18 kW 3.51 GPM 240-Volt Tankless Electric Swimming Pool Water Heater18 kW 3.51 GPM 240-Volt Tankless Electric Swimming Pool Water Heater
Expert Installation Available
(3 / 47)
Model# Smart POOL 18
$757.90
Buy 3 or more $682.11
18 kW 3.51 GPM 240-Volt Electric Tankless Water Heater with 2 Years Warranty18 kW 3.51 GPM 240-Volt Electric Tankless Water Heater with 2 Years Warranty
(5 / 6)
Model# TEW18
$349.99
/piece
Buy 3 or more $314.99
Tronic 6100 Series 18kW 3.51 GPM Whole House Electric Tankless Water HeaterTronic 6100 Series 18kW 3.51 GPM Whole House Electric Tankless Water Heater
(4 / 5)
Model# TR6100C-18
$571.32
Buy 3 or more $514.19
18 kW 4.4 GPM 240-Volt On Demand Electric Tankless Water Heater
Expert Installation Available
(3.8 / 8)
Model# ECOS 18
$423.99
Buy 3 or more $381.59
Electric Tankless Water Heater 18kW, Endless On-Demand Hot Water - Self Modulates to Save Energy Use - for 2 Showers
(2 / 1)
Model# EVT-18K
$288.99
/package
Buy 3 or more $260.09