Instant hot water anywhere

The Onsen Portable Tankless Water Heater turns cold water into instant hot water so you can enjoy a hot shower on all your outdoor adventures.

Which size is right for you?

Onsen 5L
$189.00 USD
  • Lightweight & Portable
  • Outdoor
  • Propane
  • Dual Ignition
  • Heats Cool Water (above 60°F)
  • 32,000 BTU/h
  • 10 lbs
  • 18.35 x 11.89 x 6.69 in.
Onsen 7L
$229.00 USD
  • Powerful & Compact
  • Outdoor
  • Propane
  • Dual Ignition
  • Heats Cold Water (above 45°F)
  • 50,000 BTU/h
  • 12.5 lbs
  • 21.85 x 11.89 x 7.05 in.
Onsen 10L
$269.00 USD
  • High-Powered & Semi-Permanent
  • Outdoor
  • Propane
  • Dual Ignition
  • Heats Freezing Water (below 45°F)
  • 75,000 BTU/h
  • 19 lbs
  • 25.83 x 13.43 x 8.19 in.
Onsen 14L
$479.00 USD
  • Compact & Energy Efficient
  • Indoor
  • Propane or Natural Gas
  • 120V
  • 1-2 Applications (1 bathroom)
  • 97,000/100,000 BTU/h
  • 32 lbs
  • 25.94 x 13.9 x 5.59 in.
Onsen 26L
$639.00 USD
  • Powerful & Energy Efficient
  • Indoor
  • Propane or Natural Gas
  • 120V
  • 2-3 Applications (2 bathrooms)
  • 180,000 BTU/h
  • 44 lbs
  • 27.24 x 17.13 x 8.08 in.

Key features

LED screen

Simple and precise display of water temperature and battery life.

On / Off showerhead

Includes a premium quality showerhead with On / Off button and stainless steel hose.

Dual ignition

The only portable tankless water heater on the market to feature both “D” battery and 12-volt  ignition.

Why choose Onsen

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Free delivery
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US/Canada Based Support
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Easy returns
Shield Checkmark
2-Year Warranty