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Tankless Water Heater

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!


  • Eccotemp 45HI Indoor 6.8 GPM Liquid Propane Tankless Water
    $769.00 - $769.00
    $769.00
    $769.00 - $769.00
    $769.00

    Eccotemp 45HI Indoor 6.8 GPM Liquid Propane Tankless Water Heater Service Kit Bundle

    90 reviews
    Eccotemp

    Eccotemp 45HI Indoor 6.8 GPM Liquid Propane Tankless Water Heater Service Kit Bundle The Eccotemp 45HI-LP is the largest indoor model of the Eccote...

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    $769.00 - $769.00
    $769.00
    $769.00 - $769.00
    $769.00
  • Eccotemp 20HI Indoor 6.0 GPM Natural Gas Tankless Water
    $739.00 - $739.00
    $739.00
    $739.00 - $739.00
    $739.00

    Eccotemp 20HI Indoor 6.0 GPM Natural Gas Tankless Water Heater Service Kit Bundle

    90 reviews
    Eccotemp

    Eccotemp 20HI Indoor 6.0 GPM Natural Gas Tankless Water Heater Service Kit Bundle The Eccotemp 20HI Indoor Natural Gas Tankless Water Heater is one...

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    $739.00 - $739.00
    $739.00
    $739.00 - $739.00
    $739.00
  • Eccotemp 20HI Indoor 6.0 GPM Liquid Propane Tankless Water
    $739.00 - $739.00
    $739.00
    $739.00 - $739.00
    $739.00

    Eccotemp 20HI Indoor 6.0 GPM Liquid Propane Tankless Water Heater Service Kit Bundle

    90 reviews
    Eccotemp

    Eccotemp 20HI Indoor 6.0 GPM Liquid Propane Tankless Water Heater Service Kit Bundle The Eccotemp 20HI Indoor Liquid Propane Tankless Water Heater ...

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    $739.00 - $739.00
    $739.00
    $739.00 - $739.00
    $739.00
  • Eccotemp 20H Outdoor 6.0 GPM Natural Gas Tankless Water
    $739.00 - $739.00
    $739.00
    $739.00 - $739.00
    $739.00

    Eccotemp 20H Outdoor 6.0 GPM Natural Gas Tankless Water Heater Service Kit Bundle

    90 reviews
    Eccotemp

    Eccotemp 20H Outdoor 6.0 GPM Natural Gas Tankless Water Heater Service Kit Bundle The Eccotemp 20H Outdoor Natural Gas Tankless Water Heater is one...

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    $739.00 - $739.00
    $739.00
    $739.00 - $739.00
    $739.00
  • Eccotemp 20H Outdoor 6.0 GPM Liquid Propane Tankless Water
    $739.00 - $739.00
    $739.00
    $739.00 - $739.00
    $739.00

    Eccotemp 20H Outdoor 6.0 GPM Liquid Propane Tankless Water Heater Service Kit Bundle

    90 reviews
    Eccotemp

    Eccotemp 20H Outdoor 6.0 GPM Liquid Propane Tankless Water Heater Service Kit Bundle The Eccotemp 20H Outdoor Liquid Propane Tankless Water Heater ...

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    $739.00 - $739.00
    $739.00
    $739.00 - $739.00
    $739.00
  • Eccotemp 7GB Outdoor 7.0 GPM Tankless Water Heater Outdoor
    $829.00
    $829.00 - $829.00
    $829.00
    $729.00
    $729.00 - $729.00
    $729.00

    Eccotemp 7GB Outdoor 7.0 GPM Tankless Water Heater

    90 reviews
    Eccotemp

    Eccotemp 7GB Outdoor 7.0 GPM Tankless Water Heater  The Eccotemp 7.0 GPM Outdoor Liquid Propane & Natural Gas Tankless Water Heater is the la...

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    $829.00
    $829.00 - $829.00
    $829.00
    $729.00
    $729.00 - $729.00
    $729.00
  • Eccotemp Smarthome SH22i Indoor 6.8 GPM Tankless Water Heater with Voice Commands Indoor
    $929.00
    $929.00 - $929.00
    $929.00
    $729.00
    $729.00 - $729.00
    $729.00

    Eccotemp Smarthome SH22i Indoor 6.8 GPM Tankless Water Heater with Voice Commands

    90 reviews
    Eccotemp

    Eccotemp Smarthome SH22i Indoor 6.8 GPM Tankless Water Heater with Voice Commands Upgrade to more competent water heating with the Eccotemp Smart...

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    $929.00
    $929.00 - $929.00
    $929.00
    $729.00
    $729.00 - $729.00
    $729.00
  • Eccotemp Smarthome SH22 Outdoor 6.8 GPM Tankless Water Heater with Voice Commands by Google and Alexa Outdoor
    $929.00
    $929.00 - $929.00
    $929.00
    $729.00
    $729.00 - $729.00
    $729.00

    Eccotemp Smarthome SH22 Outdoor 6.8 GPM Tankless Water Heater with Voice Commands

    90 reviews
    Eccotemp

    Eccotemp Smarthome SH22 Outdoor 6.8 GPM Tankless Water Heater with Voice Commands Heat your water smarter with the Eccotemp Smart Home 6.8 GPM Outd...

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    $929.00
    $929.00 - $929.00
    $929.00
    $729.00
    $729.00 - $729.00
    $729.00
  • Eccotemp 6.5GB-I Indoor 6.5 GPM Natural Gas Tankless Water Heater Indoor
    $779.00
    $779.00 - $779.00
    $779.00
    $659.00
    $659.00 - $659.00
    $659.00

    Eccotemp 6.5GB-I Indoor 6.5 GPM Natural Gas Tankless Water Heater

    90 reviews
    Eccotemp

    Eccotemp 6.5GB-I Indoor 6.5 GPM Natural Gas Tankless Water Heater The Eccotemp 6.5 GPM Indoor Natural Gas Tankless Water Heater is the second-lar...

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    $779.00
    $779.00 - $779.00
    $779.00
    $659.00
    $659.00 - $659.00
    $659.00
  • Eccotemp i12 Indoor 4.0 GPM Natural Gas Tankless Water
    $649.00 - $649.00
    $649.00
    $649.00 - $649.00
    $649.00

    Eccotemp i12 Indoor 4.0 GPM Natural Gas Tankless Water Heater w/ Vertical Vent Kit

    90 reviews
    Eccotemp

    Eccotemp i12 Indoor 4.0 GPM Natural Gas Tankless Water Heater w/ Vertical Vent Kit The Eccotemp i12 Indoor Natural Gas Tankless Water Heater is one...

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    $649.00 - $649.00
    $649.00
    $649.00 - $649.00
    $649.00
  • Eccotemp i12 Indoor 4.0 GPM Natural Gas Tankless Water
    $649.00 - $649.00
    $649.00
    $649.00 - $649.00
    $649.00

    Eccotemp i12 Indoor 4.0 GPM Natural Gas Tankless Water Heater w/ Horizontal Vent Kit

    90 reviews
    Eccotemp

    Eccotemp i12 Indoor 4.0 GPM Natural Gas Tankless Water Heater w/ Horizontal Vent Kit The Eccotemp i12 Indoor Natural Gas Tankless Water Heater is o...

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    $649.00 - $649.00
    $649.00
    $649.00 - $649.00
    $649.00
  • Eccotemp i12 Indoor 4.0 GPM Liquid Propane Tankless Water
    $649.00 - $649.00
    $649.00
    $649.00 - $649.00
    $649.00

    Eccotemp i12 Indoor 4.0 GPM Liquid Propane Tankless Water Heater w/ Vertical Vent Kit

    90 reviews
    Eccotemp

    Eccotemp i12 Indoor 4.0 GPM Liquid Propane Tankless Water Heater w/ Vertical Vent Kit The Eccotemp i12 Indoor Liquid Propane Tankless Water Heater ...

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    $649.00 - $649.00
    $649.00
    $649.00 - $649.00
    $649.00
  • Eccotemp i12 Indoor 4.0 GPM Liquid Propane Tankless Water
    $649.00 - $649.00
    $649.00
    $649.00 - $649.00
    $649.00

    Eccotemp i12 Indoor 4.0 GPM Liquid Propane Tankless Water Heater w/ Horizontal Vent Kit

    90 reviews
    Eccotemp

    Eccotemp i12 Indoor 4.0 GPM Liquid Propane Tankless Water Heater w/ Horizontal Vent Kit The Eccotemp i12 Indoor Liquid Propane Tankless Water Heate...

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    $649.00 - $649.00
    $649.00
    $649.00 - $649.00
    $649.00
  • Eccotemp EL22i Indoor 6.8 GPM Liquid Propane Tankless Water Heater Outdoor
    $639.00 - $639.00
    $639.00
    $639.00 - $639.00
    $639.00

    Eccotemp EL22i Indoor 6.8 GPM Liquid Propane Tankless Water Heater

    90 reviews
    Eccotemp

    Eccotemp EL22i Indoor 6.8 GPM Liquid Propane Tankless Water Heater The Eccotemp EL22i Liquid Propane Tankless Water Heater is the largest indoor mo...

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    $639.00 - $639.00
    $639.00
    $639.00 - $639.00
    $639.00
  • Eccotemp EL22i Indoor 6.8 GPM Natural Gas Tankless Water Heater Outdoor
    $639.00 - $639.00
    $639.00
    $639.00 - $639.00
    $639.00

    Eccotemp EL22i Indoor 6.8 GPM Natural Gas Tankless Water Heater

    90 reviews
    Eccotemp

    Eccotemp EL22i Indoor 6.8 GPM Natural Gas Tankless Water Heater The Eccotemp EL22i Natural Gas Tankless Water Heater is the largest indoor model of...

    View full details
    $639.00 - $639.00
    $639.00
    $639.00 - $639.00
    $639.00
  • Eccotemp EL22 Outdoor 6.8 GPM Liquid Propane Tankless Water Heater Outdoor
    Sold out
    $639.00 - $639.00
    $639.00
    $639.00 - $639.00
    $639.00

    Eccotemp EL22 Outdoor 6.8 GPM Liquid Propane Tankless Water Heater

    90 reviews
    Eccotemp

    Eccotemp EL22 Outdoor 6.8 GPM Liquid Propane Tankless Water Heater The Eccotemp EL22 Liquid Propane Tankless Water Heater is the largest outdoor mo...

    View full details
    $639.00 - $639.00
    $639.00
    $639.00 - $639.00
    $639.00
    Sold out
  • Eccotemp EL22 Outdoor 6.8 GPM Natural Gas Tankless Water Heater Outdoor
    Sold out
    $639.00 - $639.00
    $639.00
    $639.00 - $639.00
    $639.00

    Eccotemp EL22 Outdoor 6.8 GPM Natural Gas Tankless Water Heater

    90 reviews
    Eccotemp

    Eccotemp EL22 Outdoor 6.8 GPM Natural Gas Tankless Water Heater The Eccotemp EL22 Natural Gas Tankless Water Heater is the largest outdoor model of...

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    $639.00 - $639.00
    $639.00
    $639.00 - $639.00
    $639.00
    Sold out
  • Eccotemp 6GB-I Indoor 6.0 GPM Tankless Water Heater Indoor
    $729.00
    $729.00 - $729.00
    $729.00
    $619.00
    $619.00 - $619.00
    $619.00

    Eccotemp 6GB-I Indoor 6.0 GPM Tankless Water Heater

    90 reviews
    Eccotemp

    Eccotemp 6GB-I Indoor 6.0 GPM Tankless Water Heater  The Eccotemp Builder Series 6 GPM Indoor Liquid Propane & Natural Gas Tankless Water Hea...

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    $729.00
    $729.00 - $729.00
    $729.00
    $619.00
    $619.00 - $619.00
    $619.00
  • Eccotemp 6.8GB Outdoor 6.8 GPM Tankless Water Heater Indoor
    $729.00
    $729.00 - $729.00
    $729.00
    $619.00
    $619.00 - $619.00
    $619.00

    Eccotemp 6.8GB Outdoor 6.8 GPM Tankless Water Heater

    90 reviews
    Eccotemp

    Eccotemp 6.8GB Outdoor 6.8 GPM Tankless Water Heater The Eccotemp Builder Series 6.8 GPM Tankless Water Heater is one of the most advanced models...

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    $729.00
    $729.00 - $729.00
    $729.00
    $619.00
    $619.00 - $619.00
    $619.00
  • Eccotemp 6.8GB Indoor 6.8 GPM Tankless Water Heater Indoor
    $729.00
    $729.00 - $729.00
    $729.00
    $619.00
    $619.00 - $619.00
    $619.00

    Eccotemp 6.8GB-I Indoor 6.8 GPM Tankless Water Heater

    90 reviews
    Eccotemp

    Eccotemp 6.8GB-I Indoor 6.8 GPM Tankless Water Heater The Eccotemp 6.8GB Indoor Tankless Water Heater, designed for use with Liquid Propane and Nat...

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    $729.00
    $729.00 - $729.00
    $729.00
    $619.00
    $619.00 - $619.00
    $619.00
  • Eccotemp 45H Outdoor 6.8 GPM Liquid Propane Tankless Water Heater Outdoor
    Sold out
    $729.00
    $729.00 - $729.00
    $729.00
    $619.00
    $619.00 - $619.00
    $619.00

    Eccotemp 45H Outdoor 6.8 GPM Liquid Propane Tankless Water Heater

    90 reviews
    Eccotemp

    Eccotemp 45H Outdoor 6.8 GPM Liquid Propane Tankless Water Heater The Eccotemp 45H-LP Outdoor Liquid Propane Tankless Water Heater is the largest o...

    View full details
    $729.00
    $729.00 - $729.00
    $729.00
    $619.00
    $619.00 - $619.00
    $619.00
    Sold out
  • Eccotemp FVI12 Indoor 4.0 GPM Natural Gas Tankless Water
    $579.00 - $579.00
    $579.00
    $579.00 - $579.00
    $579.00

    Eccotemp FVI12 Indoor 4.0 GPM Natural Gas Tankless Water Heater Vertical Bundle

    90 reviews
    Eccotemp

    Eccotemp FVI12 Indoor 4.0 GPM Natural Gas Tankless Water Heater Vertical Bundle The Eccotemp FVI12 Indoor Natural Gas Tankless Water Heater is one ...

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    $579.00 - $579.00
    $579.00
    $579.00 - $579.00
    $579.00
  • Eccotemp FVI12 Indoor 4.0 GPM Natural Gas Tankless Water
    $579.00 - $579.00
    $579.00
    $579.00 - $579.00
    $579.00

    Eccotemp FVI12 Indoor 4.0 GPM Natural Gas Tankless Water Heater Horizontal Bundle

    90 reviews
    Eccotemp

    Eccotemp FVI12 Indoor 4.0 GPM Natural Gas Tankless Water Heater Horizontal Bundle The Eccotemp FVI12 Indoor Natural Gas Tankless Water Heater is on...

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    $579.00 - $579.00
    $579.00
    $579.00 - $579.00
    $579.00
  • Eccotemp FVI12 Indoor 4.0 GPM Liquid Propane Tankless Water
    $579.00 - $579.00
    $579.00
    $579.00 - $579.00
    $579.00

    Eccotemp FVI12 Indoor 4.0 GPM Liquid Propane Tankless Water Heater Vertical Bundle

    90 reviews
    Eccotemp

    Eccotemp FVI12 Indoor 4.0 GPM Liquid Propane Tankless Water Heater Vertical Bundle The Eccotemp FVI12 Indoor Liquid Propane Tankless Water Heater i...

    View full details
    $579.00 - $579.00
    $579.00
    $579.00 - $579.00
    $579.00

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Testimonials

Dimplex 50 Inch IgniteXL Linear Electric Fireplace Attached

Exceptional Quality and Service!

"I couldn’t be happier with my purchase! The products are of outstanding quality, and the customer service was prompt and helpful. Highly recommend!"

Emily R.
Dimplex 100 Inch IgniteXL Linear Electric Fireplace Attached

Great Customer Service

Fast turn around. Package came with both pulleys for direct replacement of the original molded plastic GIOT pulleys. These pulleys match the Body Solid GS9 upgraded pulleys exactly.

Michael K
Dimplex 88 Inch Ignite Bold Built-In Linear Electric Fireplace Attached

Reliable and Durable

We finally had the heater installed yesterday. It’s exactly what we needed!! Thank you so much for all of your help. John really went above and beyond. My greenhouse is now safe and warm again for all my critters!!

Michael K
Monessen Exacta 32 Inch Vent Free Circulating Clean Face Firebox Attached

I'm Satisfied

Two weeks after receiving the AC300 and B300, we had a 7-hour power outage due to a heavy thunderstorms. The Bluetti powered our home fridge, TV, and computer without any issues. We are very thankful to have them.

West

Great Value for Money

The stove is working beautifully! Up here in the San Juan Mountains, we're starting to experience some chilly mornings. Today, it was below 30 degrees at 7 am! I'm grateful for having this Heater, especially since the days warm up to nearly 80 degrees, making it pretty spectacular.

Cheryl
Mr Steam MS90E

Impressive Selection

I've been using my Bluetti generator for three days now and it's still going strong at 60% availability. I absolutely love it!

Lauren Taylor