Unique features
Dual ignition system
The only portable tankless water heater on the market to feature both "D" and 12-volt battery ignition.
12-volt alligator clips
Includes 12-volt alligator clips.
LED screen
Simple and precise display of water temperature and battery life.
Premium showerhead
Includes a superior quality On/Off shower head.
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

Products related to this item
Like what you see? Check out these other Onsen products.
-
Onsen 5L Outdoor Propane Portable Tankless Water Heater 1.3 Gal/Min 32K BTU$189.00 USD
-
Onsen 5L Outdoor Propane Portable Tankless Water Heater 1.3 Gal/Min 32K BTU with 3.0 Pump$249.00 USD
-
Onsen 5L Outdoor Propane Portable Tankless Water Heater 1.3 Gal/Min 32K BTU with 3.0 Pump & 1.0L Accumulator$269.00 USD
-
Onsen 7L Outdoor Propane Portable Tankless Water Heater 1.8 Gal/Min 50K BTU$229.00 USD
-
Onsen 7L Outdoor Propane Portable Tankless Water Heater 1.8 Gal/Min 50K BTU with 3.0 Pump$269.00 USD
-
Onsen 7L Outdoor Propane Portable Tankless Water Heater 1.8 Gal/Min 50K BTU with 3.0 Pump & 1.0L Accumulator$289.00 USD
-
Onsen 10L Outdoor Propane Portable Tankless Water Heater 2.6 Gal/Min 75K BTU$269.00 USD
-
Onsen 10L Outdoor Propane Portable Tankless Water Heater 2.6 Gal/Min 75K BTU with 3.0 Pump$329.00 USD
-
Onsen 10L Outdoor Propane Portable Tankless Water Heater 2.6 Gal/Min 75K BTU with 3.0 Pump & 1.0L Accumulator$349.00 USD
- Reviews
- Questions
Thank you for submitting a review!
Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Product works good so far
My over all experience was good, I wish you would use a more common type fitting for the hose hook up Product came quickly and is working well however I have just received another heater / pump I'm not sure if you have double shipped or if you have charged my credit card twice I am still looking into it. Please review and reply Thanks

So fun to have hot water at the cabin!!
Work great, I installed a shower at my hunting cabin, the only thing missing for long stays! So good to take a shower after a long day!

Lowest temperature and still hot
I believe the ambient temperature really effects this heaters . I Have it on the lowest settings and it still burning hot. And if I introduce cold it turns off. I believe this is due to water pressure
Works nicely hooked up to an outdoor house bib.
Very pleased with Onsen 10L Portable Tankless Water Heater
Product is well packaged, a concise operating manual, all the accessories needed & a great price!