Our Top 10 Recommendations for Best Tankless Water Heaters

Up-to-date pricing and reviews for best tankless water heaters on the market

SaleBestseller No. 1

Endless hot water for your entire home
V65eN HE High Efficiency Tankless Hot Water Heater - Natural Gas: Outdoor Installation Only
Up to 6.5 GPM hot water flow rate (varies by groundwater temp)
Control-R 2.0 mobile app features timers and schedules throughout the day and allows you to remotely put the system into vacation mode.
Residential Factory Warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)

Bestseller No. 2

Endless hot water for your entire home
V65iN HE High Efficiency Tankless Hot Water Heater - Natural Gas: Indoor Installation Only
Up to 6.5 GPM hot water flow rate (varies by groundwater temp)
Control-R 2.0 mobile app features timers and schedules throughout the day and allows you to remotely put the system into vacation mode.
Residential Factory Warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)

Bestseller No. 3

Bestseller No. 4

External digital thermostatic control with LED display (+/1 degree accuracy)
Most advanced self-modulation, adjust power to meet hot water demand
Durable Copper immersion three heating elements, field Serviceable
Simple installation – bottom 3/4 inch NPT water connections.Threaded for easy replacement, simple installation, digital temperature display
Flow Rate: up to 5.9 GPM

Bestseller No. 5

Endless hot water for your entire home
RL94iN HE+ High Efficiency Tankless Hot Water Heater - Natural Gas: Indoor Installation Only
Up to 9.4 GPM hot water flow rate (varies by groundwater temp)
Circ-Logic technology allows you to set recirculation patterns that coincide with your typical habits. Hot water is available when you need it!
Residential Factory Warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts).10,300 BTU (Minimum) / 199,000 BTU (Maximum)

Bestseller No. 6

CONTINUOUS FLOW – Advanced Flow Control German patented technology invented by Stiebel Eltron, automatically maintains water temperature for constant comfort. It’ll reduce flow slightly if hot water demand exceeds capacity. Hot showers will never be interrupted again.
SPACE & ENERGY SAVER – Its small, sleek white design saves space yet still provides endless hot water for your whole house, and no venting is required. Eco friendly unit saves energy with auto-modulation and the ability to electronically measure water flow. Savings monitor even shows how much you save on energy costs.
EASY OPERATION – Electronic flow sensor switches on the powerful solid copper interior heating system of the water heater. It’s noise free while in use and has a digital temperature display and preset temperature memory buttons.
TEMPRA 24 PLUS – This specific model is 24kW, 240V/208V, requires a min. recommended household electric service of 150 A, and offers an output water temperature of 86˚ to 140˚F. Check our guides below to compare features of our various Trend and Plus models, each available in different kW levels.
WARRANTIES INCLUDED – Stiebel Eltron’s top-rated electric tankless water heaters perform with the highest standards for comfort and reliability. Our 7-Year Leakage and 3-Year Parts Warranties are included with purchase.

SaleBestseller No. 7

Exclusive Water Savings technology conserving up to 1, 100 gallons per year
157, 000 BTU (gas consumed per hour)
Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
Recirculation pump ready kit ready
For use outdoors with freeze protection up to -30 degrees

SaleBestseller No. 8

Whole home indoor, gas powered tankless water heater, rated at 3.6 GPM that activates only when in use, making it an energy saver.
For indoor installation with safe, efficient power ventilation and perfect for any small home, cabin or apartment.
Easy to read digital temperature display, on a compact and space-saving design with minimal noise output.
Safe electronic ignition system; plugs into standard 120v electrical outlet with UL-listed cord.
Uses standard 1/2" NPT water fittings and is equipped with easy to use manual water temperature controls.