

Coleman Hot Water on Demand H2Oasis Portable Water Heater
Key item features
- Rapid Heating: Dispenses hot water up to 125°F in approximately 30 seconds, utilizing propane power for quick heating.
- Consistent Performance: Features Instastart ignition for automatic, matchless lighting and PerfectFlow technology for reliable operation in various conditions.
- Adjustable Temperature: Allows users to dial in the perfect water temperature, complemented by an LED display for status indicators.
- Convenient Showering: Includes a shower head with a 6-ft. non-kink silicone hose and a multi-position holder with height and multi-axis rotation.
- Integrated Power: Equipped with a built-in lithium-ion rechargeable battery to power the electric pump and LED display, rechargeable via a 12V car outlet.
- Portable Accessories: Comes with a mesh storage bag and a 5-gallon collapsible water carrier for easy transport and water supply.
Specs
- Water heater typeTankless Water Heaters
- Fuel typeElectric
- Volume capacity40 gal
- Is energy star-certifiedN
- FeaturesPortable
- Rec locationOutdoor
Reviews summary
Pros
- : Lightweight and compact design for easy transport.
- : Comes with all necessary connections for easy setup.
- : Made with materials that can withstand regular use.
- : Setup and operation are easy to understand.
Cons
- : Requires 12v power source, no household charger included.
- : Additional equipment costs add to the overall expense.
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About this item
Product details
- Coleman Hot Water on Demand H2Oasis Portable Water Heater
- Dispenses hot water up to 125 °F in approximately 30 seconds
- Instastart ignition for automatic, matchless lighting
- PerfectFlow technology provides consistent performance, even in extreme conditions
- Adjustable to dial in the perfect temperature
- LED display provides easy-to-see hot water and status indicators
- Shower head with 6-ft. non-kink, silicone hose for convenient use
- Multi-position shower head holder with height adjustment and multi-axis rotation
- Quick connect brass hose fittings - easy, durable hose attachments
- High-power submersible electric pump provides reliable, strong water flow
- Built-in lithium ion rechargeable battery powers the electic pump and LED display
- 12V charger to recharge from your car outlet
- Perfect for washing, hot beverages or showering when camping, hunting or enjoying other outdoor occasions
- Mesh storage bag and 5-gallon collapsible water carrier included
- 3-year limited warranty
Specifications
Water heater type
Fuel type
Brand
Volume capacity
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
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Customer ratings & reviews
Reviews summary
Pros
- : Lightweight and compact design for easy transport.
- : Comes with all necessary connections for easy setup.
- : Made with materials that can withstand regular use.
- : Setup and operation are easy to understand.
Cons
- : Requires 12v power source, no household charger included.
- : Additional equipment costs add to the overall expense.
Customer photos






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Showing 1-3 of 110 reviews
Seller Verified Purchase
Does rhe Job
I moved to an off grid cabin that has no running water. This hot water heater with shower is just what we needed. The 2 of us only use 5 gallons of water for a shower. This item is lower cost than some other options which is important to us.
Verified Purchase
Very good heater.
I have put 30 gallons of water through this just to test it. It performed flawlessly. The battery had enough charge left for at least 10 gallons more of water. Same for the propane bottle. I had no leaks anywhere. Just have to take a little time putting it together. No you can't turn the water flow off but that's no big problem. If it is for you a ball valve and return line fixes that very simply. People need to look at the listing better. There are two different models. There is an A model and a B model. With the A model you get the AC plug with it and the B model you don't. The A model has a digital display and the B uses lights. The A model has an adjustable shower head and the B doesn't. All the safety features and everything else are exactly the same. The A model has been just recently discontinued. Do the maintenance they recommend and this water heater will heat many showers for you. My first one I gave to my daughter this year has had over 1,000 gallons of water through it and still functions like new. Take care of it and it will work well for many years.
Seller Verified Purchase
Works but has some major flaws.
When it's charged and works for about 5 minutes it's great. Although here are a few things that really irritate me about it. The battery only lasts 5 minutes before it needs to be recharged. We didn't figure this out until we were on our 2 week long trip up the coast. We ended up solving this by using the dc plug and a power bank to run the pump while we needed extra time. The temperature setting is very misleading. When you start it and turn it on. Don't even think about turning it past the minimum setting. It will overheat and shut off the pump and flame. There's no way to shut off the pump while also turning off the heater. So if you're showering and trying to conserve water it's near impossible without having to relight your heater. Kinda dumb. Overall the water does does really hot fast.
Hello, thank you for sharing your detailed feedback on the H2Oasis™ Portable Water Heater. We truly appreciate you taking the time to outline your experiences, both positive and challenging, particularly during your two-week trip. It's great to hear that when the unit is charged and running, it performs well by heating water quickly. We understand your frustration with the battery life and the temperature setting, especially during your trip. The 5-minute battery duration before needing a recharge is certainly not ideal for extended use, and we are glad you found a workaround with the DC plug and a power bank. Your comments about the temperature setting causing overheating and the inability to run the pump independently of the heater are also very valuable and highlight areas where we can improve the user experience. We are continuously working to enhance our products, and your insights are crucial for these improvements. We will be looking into the battery performance to extend its operational time and addressing the temperature regulation to prevent overheating issues. If you require our assistance, please contact us using our Contact Us form on the following website: https://www.coleman.com/support/contact-us so we can help you further. We’re available Mon.-Fri. 9 am – 8 pm Eastern Time. Thank you! Coleman Consumer Care






