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Tankless Water Heaters
Shop the top tankless hot water heaters online and enjoy endless hot water on demand. Browse our selection of high-quality tankless water heaters from the top brands, including Rinnai, Eccotemp, and PrecisionTemp. Find the perfect model for your home or business, and enjoy an energy-efficient performance.
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Shop Top-Selling Tankless Hot Water Heater Brands
Our collection includes Eccotemp, PrecisionTemp, and the #1 selling tankless water heater manufacturer in North America - Rinnai. Our top-selling tankless water heater is the Rinnai SE+ Series 11 GPM Indoor Condensing Tankless Water Heater, NG - If you want an energy-efficient, high-performance tankless water heater for your home or business, we highly recommend the SE+ Series 11 GPM Indoor.
Find Your Perfect Tankless Water Hot Heater in Our Collection
Our collection includes a range of sizes and styles to find the perfect tankless water heater for your home. Whether you're looking for a compact unit for a small space or a powerful one to handle the hot water needs of a large family, you'll find it in this collection. Plus, with our selection of energy-efficient models, you can save on your monthly energy bills and do your part for the environment.
Stay Comfortable on the Go with Our Tankless Water Heaters for RVs and Off-Grid Living
If you're a traveler with an RV looking to have warm showers on the go, we recommend the RV-550 EC with Black Door Natural Gas Tankless Water Heater. It is lightweight and sleek, allowing you to install it perfectly in your RV. You'll enjoy warm showers on the go whenever you want using natural gas, a digital display, and several safety protections. Check out this list if you want more options for tankless water heaters for off-grid living.
Discover the Benefits of Tankless Hot Water Heaters for Your Home:
Curious about the benefits of tankless hot water heaters? Discover how tankless water heaters can improve your home's energy efficiency, save you money on energy bills, provide endless hot water on demand, and more. Read our tankless water heater blogs to make an informed buying decision, or just learn more about water heaters!
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Rinnai SE+ Series 7 GPM Indoor Condensing Tankless Water Heater, LP
RinnaiOriginal price $1,421.46 - Original price $1,521.46Original price$1,421.46 - $1,521.46$1,421.46 - $1,521.46Current price $1,421.46The Rinnai SE+ Series tankless water heater is a high-efficiency, indoor condensing unit that provides hot water on demand. It has a flow rate of 7...
View full detailsOriginal price $1,421.46 - Original price $1,521.46Original price$1,421.46 - $1,521.46$1,421.46 - $1,521.46Current price $1,421.46 -
Rinnai SE+ Series 7 GPM Indoor Condensing Tankless Water Heater, NG
RinnaiOriginal price $1,421.46 - Original price $1,521.46Original price$1,421.46 - $1,521.46$1,421.46 - $1,521.46Current price $1,421.46The Rinnai SE+ Series tankless water heater is a high-efficiency, indoor condensing unit that provides hot water on demand. It has a flow rate of 7...
View full detailsOriginal price $1,421.46 - Original price $1,521.46Original price$1,421.46 - $1,521.46$1,421.46 - $1,521.46Current price $1,421.46 -
Rinnai SE+ Series 7 GPM Outdoor Condensing Tankless Water Heater, LP
RinnaiOriginal price $1,421.46 - Original price $1,521.46Original price$1,421.46 - $1,521.46$1,421.46 - $1,521.46Current price $1,421.46The Rinnai SE+ Series tankless water heater is a high-efficiency, outdoor condensing unit that provides hot water on demand. It has a flow rate of ...
View full detailsOriginal price $1,421.46 - Original price $1,521.46Original price$1,421.46 - $1,521.46$1,421.46 - $1,521.46Current price $1,421.46 -
Rinnai SE+ Series 7 GPM Outdoor Condensing Tankless Water Heater, NG
RinnaiOriginal price $1,421.46 - Original price $1,521.46Original price$1,421.46 - $1,521.46$1,421.46 - $1,521.46Current price $1,421.46The Rinnai SE+ Series tankless water heater is a high-efficiency, outdoor condensing unit that provides hot water on demand. It has a flow rate of ...
View full detailsOriginal price $1,421.46 - Original price $1,521.46Original price$1,421.46 - $1,521.46$1,421.46 - $1,521.46Current price $1,421.46 -
Rinnai RE Series 9.8 GPM Outdoor NCTWH - LP
RinnaiOriginal price $1,389.75 - Original price $1,489.75Original price$1,389.75 - $1,489.75$1,389.75 - $1,489.75Current price $1,389.75The Rinnai RE Series 9.8 GPM Outdoor NCTWH - LP is a high-performance, outdoor tankless water heater designed to provide an endless hot water suppl...
View full detailsOriginal price $1,389.75 - Original price $1,489.75Original price$1,389.75 - $1,489.75$1,389.75 - $1,489.75Current price $1,389.75 -
Rinnai SE Series 7.5 GPM Outdoor Condensing Tankless Water Heater, LP
RinnaiOriginal price $1,893.00Original price $1,893.00 - Original price $1,893.00Original price $1,893.00Current price $1,300.00$1,300.00 - $1,300.00Current price $1,300.00The Rinnai SE Series 7.5 GPM Outdoor Condensing Tankless Water Heater is a high-efficiency water heating system that provides an endless supply of ...
View full detailsOriginal price $1,893.00Original price $1,893.00 - Original price $1,893.00Original price $1,893.00Current price $1,300.00$1,300.00 - $1,300.00Current price $1,300.00Save $593.00 -
Rinnai RE Series 8.5 GPM Indoor NCTWH - NG - Replaces V75IN
RinnaiOriginal price $1,500.00Original price $1,500.00 - Original price $1,500.00Original price $1,500.00$1,184.25 - $1,284.24$1,184.25 - $1,284.24Current price $1,184.25The Rinnai RE Series 8.5 GPM Indoor NCTWH - NG is a high-capacity, natural gas-powered tankless water heater designed for indoor installation. It c...
View full detailsOriginal price $1,500.00Original price $1,500.00 - Original price $1,500.00Original price $1,500.00$1,184.25 - $1,284.24$1,184.25 - $1,284.24Current price $1,184.25Save up to $315.75 -
Rinnai RE Series 8.5 GPM Outdoor NCTWH - LP
RinnaiOriginal price $1,500.00Original price $1,500.00 - Original price $1,500.00Original price $1,500.00$1,184.25 - $1,284.25$1,184.25 - $1,284.25Current price $1,184.25The Rinnai RE Series 8.5 GPM Outdoor NCTWH - LP is a high-capacity, propane-powered tankless water heater designed for outdoor installation. It can...
View full detailsOriginal price $1,500.00Original price $1,500.00 - Original price $1,500.00Original price $1,500.00$1,184.25 - $1,284.25$1,184.25 - $1,284.25Current price $1,184.25Save up to $315.75 -
Rinnai RE Series 6.6 GPM Indoor NCTWH - LP
RinnaiOriginal price $1,500.00Original price $1,500.00 - Original price $1,500.00Original price $1,500.00$969.75 - $1,069.75$969.75 - $1,069.75Current price $969.75The Rinnai RE Series 6.6 GPM Indoor NCTWH - LP is a high-capacity, propane-powered tankless water heater designed for indoor installation. It can d...
View full detailsOriginal price $1,500.00Original price $1,500.00 - Original price $1,500.00Original price $1,500.00$969.75 - $1,069.75$969.75 - $1,069.75Current price $969.75Save up to $530.25 -
Rinnai RE Series 6.6 GPM Indoor NCTWH - NG
RinnaiOriginal price $1,500.00Original price $1,500.00 - Original price $1,500.00Original price $1,500.00$969.75 - $1,169.75$969.75 - $1,169.75Current price $969.75The Rinnai RE Series 6.6 GPM Indoor NCTWH - NG is a high-performance, natural gas-fired tankless water heater. It is designed to provide an endless...
View full detailsOriginal price $1,500.00Original price $1,500.00 - Original price $1,500.00Original price $1,500.00$969.75 - $1,169.75$969.75 - $1,169.75Current price $969.75Save up to $530.25 -
Rinnai RE Series 6.6 GPM Outdoor NCTWH - LP - Replaces V65EP
RinnaiOriginal price $1,500.00Original price $1,500.00 - Original price $1,500.00Original price $1,500.00$969.75 - $1,069.75$969.75 - $1,069.75Current price $969.75The Rinnai RE Series 6.6 GPM Outdoor NCTWH - LP is a high-capacity, propane-powered tankless water heater designed for outdoor installation. It is ...
View full detailsOriginal price $1,500.00Original price $1,500.00 - Original price $1,500.00Original price $1,500.00$969.75 - $1,069.75$969.75 - $1,069.75Current price $969.75Save up to $530.25 -
Rinnai RE Series 6.6 GPM Outdoor NCTWH – NG
RinnaiOriginal price $1,500.00Original price $1,500.00 - Original price $1,500.00Original price $1,500.00$969.75 - $1,069.75$969.75 - $1,069.75Current price $969.75The Rinnai RE Series 6.6 GPM Outdoor NCTWH - NG is a high-performance, natural gas-fired tankless water heater designed for outdoor installation. I...
View full detailsOriginal price $1,500.00Original price $1,500.00 - Original price $1,500.00Original price $1,500.00$969.75 - $1,069.75$969.75 - $1,069.75Current price $969.75Save up to $530.25 -
Eccotemp EL22i Indoor 6.8 GPM Liquid Propane Tankless Water Heater Horizontal Bundle
EccotempOriginal price $899.00 - Original price $899.00Original price$899.00$899.00 - $899.00Current price $899.00This bundle includes the Eccotemp EL22i Indoor Liquid Propane Tankless Water Heater and the 4" Horizontal Z-Vent Water Heater Vent Kit with Backflo...
View full detailsOriginal price $899.00 - Original price $899.00Original price$899.00$899.00 - $899.00Current price $899.00 -
Eccotemp EL22i Indoor 6.8 GPM Natural Gas Tankless Water Heater Horizontal Bundle
EccotempOriginal price $899.00 - Original price $899.00Original price$899.00$899.00 - $899.00Current price $899.00This bundle includes the Eccotemp EL22i Indoor Natural Gas Tankless Water Heater and the 4" Horizontal Z-Vent Water Heater Vent Kit with Backflow P...
View full detailsOriginal price $899.00 - Original price $899.00Original price$899.00$899.00 - $899.00Current price $899.00 -
Eccotemp EL22i Indoor 6.8 GPM Liquid Propane Tankless Water Heater Vertical Bundle
EccotempOriginal price $899.00 - Original price $899.00Original price$899.00$899.00 - $899.00Current price $899.00This bundle includes the Eccotemp EL22i Liquid Propane Tankless Water Heater and the Eccotemp 4" Vertical Vent Kit Bundle. The Eccotemp EL22i Liq...
View full detailsOriginal price $899.00 - Original price $899.00Original price$899.00$899.00 - $899.00Current price $899.00 -
Eccotemp EL22i Indoor 6.8 GPM Natural Gas Tankless Water Heater Vertical Bundle
EccotempOriginal price $899.00 - Original price $899.00Original price$899.00$899.00 - $899.00Current price $899.00This bundle includes the Eccotemp EL22i Indoor Natural Gas Tankless Water Heater and the Eccotemp 4" Vertical Vent Kit. The Eccotemp EL22i Natural...
View full detailsOriginal price $899.00 - Original price $899.00Original price$899.00$899.00 - $899.00Current price $899.00 -
Eccotemp 45HI Indoor 6.8 GPM Natural Gas Tankless Water Heater Vertical Bundle
EccotempOriginal price $879.00 - Original price $879.00Original price$879.00$879.00 - $879.00Current price $879.00This model has been redesigned to activate at a lower flow rate of 0.8 GPM as well as updated self diagnostics. The Eccotemp 45HI-NG is the larges...
View full detailsOriginal price $879.00 - Original price $879.00Original price$879.00$879.00 - $879.00Current price $879.00 -
Eccotemp 45HI Indoor 6.8 GPM Liquid Propane Tankless Water Heater Vertical Bundle
EccotempOriginal price $879.00 - Original price $879.00Original price$879.00$879.00 - $879.00Current price $879.00This model has been redesigned to activate at a lower flow rate of 0.8 GPM as well as updated self diagnostics. The Eccotemp 45HI-LP is the larges...
View full detailsOriginal price $879.00 - Original price $879.00Original price$879.00$879.00 - $879.00Current price $879.00 -
Eccotemp 45HI Indoor 6.8 GPM Natural Gas Tankless Water Heater Horizontal Bundle
EccotempOriginal price $869.00 - Original price $869.00Original price$869.00$869.00 - $869.00Current price $869.00This model has been redesigned to activate at a lower flow rate of 0.8 GPM as well as updated self diagnostics. The Eccotemp 45HI-NG is the larges...
View full detailsOriginal price $869.00 - Original price $869.00Original price$869.00$869.00 - $869.00Current price $869.00 -
Eccotemp 45HI Indoor 6.8 GPM Liquid Propane Tankless Water Heater Horizontal Bundle
EccotempOriginal price $869.00 - Original price $869.00Original price$869.00$869.00 - $869.00Current price $869.00This model has been redesigned to activate at a lower flow rate of 0.8 GPM as well as updated self diagnostics. The Eccotemp 45HI-LP is the larges...
View full detailsOriginal price $869.00 - Original price $869.00Original price$869.00$869.00 - $869.00Current price $869.00 -
Rinnai RE Series 5.3 GPM Indoor NCTWH - LP
RinnaiOriginal price $1,500.00Original price $1,500.00 - Original price $1,500.00Original price $1,500.00$863.25 - $963.25$863.25 - $963.25Current price $863.25The Rinnai RE Series 5.3 GPM Indoor NCTWH - LP is a high-efficiency, propane-powered tankless water heater. It is designed for use in residential a...
View full detailsOriginal price $1,500.00Original price $1,500.00 - Original price $1,500.00Original price $1,500.00$863.25 - $963.25$863.25 - $963.25Current price $863.25Save up to $636.75 -
Rinnai RE Series 5.3 GPM Indoor NCTWH - NG
RinnaiOriginal price $1,500.00Original price $1,500.00 - Original price $1,500.00Original price $1,500.00$863.25 - $963.25$863.25 - $963.25Current price $863.25The Rinnai RE Series 5.3 GPM Indoor NCTWH - NG is a high-efficiency, natural gas-powered tankless water heater. It is designed for use in residenti...
View full detailsOriginal price $1,500.00Original price $1,500.00 - Original price $1,500.00Original price $1,500.00$863.25 - $963.25$863.25 - $963.25Current price $863.25Save up to $636.75 -
Rinnai RE Series 5.3 GPM Outdoor NCTWH - LP
RinnaiOriginal price $1,500.00Original price $1,500.00 - Original price $1,500.00Original price $1,500.00$863.25 - $963.25$863.25 - $963.25Current price $863.25The Rinnai RE Series 5.3 GPM Outdoor NCTWH - LP is a high-efficiency, propane-powered tankless water heater. It is designed for outdoor installatio...
View full detailsOriginal price $1,500.00Original price $1,500.00 - Original price $1,500.00Original price $1,500.00$863.25 - $963.25$863.25 - $963.25Current price $863.25Save up to $636.75 -
Rinnai RE Series 5.3 GPM Outdoor NCTWH – NG
RinnaiOriginal price $1,500.00Original price $1,500.00 - Original price $1,500.00Original price $1,500.00$863.25 - $963.25$863.25 - $963.25Current price $863.25The Rinnai RE Series 5.3 GPM Outdoor NCTWH – NG is a high-performance, natural gas-powered tankless water heater. It is designed for outdoor instal...
View full detailsOriginal price $1,500.00Original price $1,500.00 - Original price $1,500.00Original price $1,500.00$863.25 - $963.25$863.25 - $963.25Current price $863.25Save up to $636.75
