Onsen 5L Outdoor Propane Portable Tankless Water Heater 1.3 Gal/Min 32K BTU


The Onsen 5L Portable Tankless Water Heater turns cool water into instant hot water so you can enjoy a hot shower on all your outdoor adventures.

Ideal for heating summer water temperatures of 60°F / 15°C and warmer, this lightweight, portable water heater turns cool water into instant hot water on demand and features an electronic ignition (no pilot light and no wasted gas) activated by water pressure and flow.

Designed for the ultimate portability and accessibility wherever you roam, Onsen is the only portable water heater on the market featuring a dual-ignition system with two convenient options to choose from when you’re venturing outdoors. Get started with two “D” cell batteries or connect to a 12 volt power source.

Featuring a premium shower head, digital screen and included 12V battery clips, the Onsen 5L runs on a standard propane tank and is perfect for hunting camps, off-grid cabins, camping, boating, pet grooming, horse trailers, stables or simply rinsing off by the pool.

Bring the comfort of Onsen to all your outdoor adventures!

25 in stock

SKU: ON-PWH-5L Category:

Additional information

Weight 10.5 lbs
Dimensions 14.6 × 11.8 × 4.9 in

Default Title


Model 5L
BTUs 32,000
Fuel type Liquid propane
Portable Yes
Water pressure requirement 10-80 PSI
Ignition system 2 “D” batteries / 12 volts
Max temperature 50°C / 122°F
CSA Listed Yes
Indoor/Outdoor Outdoor
Vent type None required
Weight 10.5 lbs / 4.76 kg
Dimensions 14.6 x 11.8 x 4.9 in.
Warranty 2-year limited

Operating Manual

Operating manual


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