Onsen 5L Portable Propane Water Heater with 12V Pump


The Onsen 5L portable tankless water heater turns cold water into instant hot water so you can enjoy a hot shower on all your outdoor adventures.

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.

Working in combination with the Onsen 3.0 Diaphragm RV / Marine 12V Water Pump, the Onsen 5L will provide the comfort of instant, pressurized, hot water in any off-grid situation.

Please note that pump water hoses shown in image are not included.

SKU: ON-PWH-5L-DP30 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 5L Portable Tankless Water Heater

Operation Manual Diaphragm RV / Marine Water Pump

Onsen 1.0L Accumulator Tank


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