(Out of Stock)
Image without description.
Image without description.
Image without description.

Product Description

  • Description
  • Warranty


 Onsen 5L Tankless Portable Water Heater


The Onsen 5 L 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 12 V battery clips, the Onsen 5-L 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 and Marine 12 V Water Pump, this tankless water heater will provide the comfort of an instant, pressurized, hot water in any off-grid situation.

The addition of the Onsen 1 L accumulator tank, which ensures even water flow by acting as a pressure buffer for the pump, enhances the experience by providing better control of hot water temperatures.

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

Outdoor use only 32,000 BTU Includes gas regulator and hose for standard barbecue propane tank Gas and water control knobs for temperature adjustment Ignition powered by two D cell batteries or 12V battery connection Digital screen displaying outgoing water temperature and battery life.


What’s in the box

• Water heater

• On/Off showerhead and holder

• Gas regulator for 20-pound propane tank

• Female ¾-inch adapter for garden hose

• Gas compression fitting

• Quick Connect adapter

• Teflon tape

• Hardware set

• 12-volt alligator clips

Garantie / Warranty
24 mois
24 months
Numéro de pièce/modèle / Part/Model Number
Marques de certifications / Regulatory Certification Marks



Check out the blog post of the best hot water heater for camping and outdoors here


You are protected by our 30 Day Money Back Guarantee and Specific FULL REPLACEMENT Warranty Options: BRS Super Gas Pumps: 1 Year Full Replacement Warranty. BRS Super Battery: 30 Days, 2 Years, or 10 Years Full Replacement Warranty with NO PRORATION. BRS Super Charger: 1 Year Full Replacement Warranty. Fisher Price Power Wheels / Peg Perego Batteries and Chargers: 6 Months Full Replacement Warranty. Please contact us for all other product specific warranty options.

The service at BRS is exceptional and refreshing… very friendly, customer- centric. Thanks again for your expert advice.Overall, this was a great customer experience!

Dan McCambridge

Excellent service, quick turnaround, was told every step of the way as to what was happening to my purchase.

Claude D'Aoust

Very easy to shop on the website and great to deal with. The shipping fast and great.

Stephen Himmelman

My second purchase bought from this company and have no complaint even the warranty is excellent I had to contact them for a battery that the charge was not keeping and they send me a new one right away that's what I like about this company customer service is excellent and they'll contact you fast!!!