Electric Mini Tank Water Heater 2.5 Gallon Under Sink Instant Hot Water Point of Use for RV Kitchen Bathroom Camper with Safety Vavle 1/2" NPT Wall or Floor Mounted
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Availability:
18 left in stock
Arrives
Wednesday, Aug 5
Style: 2.5 Gallon
Features
- Instant Hot Water Heater-The Aokawa 2.5 gallon electric mini tank water heater rapidly heats water, minimizing your wait time and efficiently meeting your hot water needs. The 316 stainless steel heating element achieves up to 99% heat utilization. The temperature is adjustable from 86-167F for simple, convenient operation.
- Perfect Insulation- The point of use electric water heater mini tank supports fast heating. Its thermal efficiency is up to 97%, providing on-demand hot water in 5-10 minutes. Instant hot water is always at the point of use. The polyurethane CFC-free filling layer greatly improved insulation performance. It not only improves your hot water usage experience but also saves you energy expenses.
- Compact and Streamlined Design - Efficient and space-saving, can be installed under the sink. Perfect for RVs, camping sites and other places where hot water supply is needed, such as kitchens, bathrooms, garages, dining cars, offices, and salons.
- Easy Installations - Under sink water heater can be shelf, wall, or floor mounted (bracket included); Simply tap into the cold water line and install the water heater directly at the sink to provide hot water. 110-120V AC plug in and 3/4" NPT water connections. Maximum water pressure: 150 PSI. Product dimension: 14.42" W x 14.42" H x 14.42" D.
- Peace of Mind- The under sink hot water heater has multiple protections, IPX4 waterproofing, and can withstand high temperatures and pressures. It comes with a 2-year warranty and a professional customer service team.
- Package Included: Teflon tape * 1, Converter hose * 2, Mounting kits * 1, Fine water pipe * 1, T&P valve * 1, 3-way valve * 1.
Brand: Aokawa
Capacity: 2.5 gallons
Product Dimensions: 14.42"W x 14.42"H
Special Feature: Anti-Freezing Protection, Dry Combustion Protection, LED Display, Overheat Protection, Temperature Lock See more
Color: Black
Special Features: Anti-Freezing Protection, Dry Combustion Protection, LED Display, Overheat Protection, Temperature Lock
Wattage: 1500 watts
Voltage: 120 Volts
Maximum Temperature: 167 Degrees Fahrenheit
Maximum Pressure: 150 Pound per Square Inch
Mount Type: Floor
Is Electric: Yes
Capacity: 2.5 gallons
Item Dimensions W x H: 14.42"W x 14.42"H
Color: Black
Style Name: 2.5 Gallon
Brand Name: Aokawa
Model Number: AT-25G-US01
Manufacturer: Aokawa
Manufacture Year: 2025
Included Components: Teflon tape * 1, Converter hose * 2, Mounting kits * 1, Fine water pipe * 1, T&P valve * 1, 3-way valve * 1
Item Type Name: Mini Tank Water Heater
Material Type: Acrylonitrile Butadiene Styrene, Stainless Steel
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Aug 5
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: 4.0 Gallon
Works great, 20 minutes to heat up, gets real hot. Was able to take a 49 min shower before it got uncomfortably cold. Easy setup and was light enough to move without putting any strain on me. Lastly, it uses way less energy than my last one I had installed. Making it perfect for the trailer set up I have.
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Reviewed in the United States on April 17, 2026 by Richie
Style: 4.0 Gallon
Works really well for outside kitchen. No problems. Water heats quick,
Reviewed in the United States on April 9, 2026 by Susan Sartor
Style: 4.0 Gallon
This works well. 120 is the max temp needed for a sink or shower. 140 degrees is the max temp you need if you are connecting to a dishwasher. This water heater gets the water hotter than that so make sure you do not turn it all the way up. It’s super light. Surprisingly so. It comes with a tee in case you want to hook it to two fixtures such as a sink and shower or a sink and dishwasher. BUT it only has two hoses, so you cannot use the tee unless you buy an additional hose. I also had to buy an adapter for mine but you may not have to. I would have rather paid a little more but received a third hose to hook to the tee. But here is the biggest issue - the pressure relief valve leaks. I tried the teflon tape that came with it. I tried teflon tape combined with Pipe Thread Sealant. I tried thicker, better teflon tape with the sealant. I cranked it all the way down until the valve housing bottomed out. Nothing would stop the leak. Finally I ordered an assortment of rubber gaskets for an extra $9 to get what was either an 18 mm or 20 mm gasket (sizes weren’t labeled so I can’t be sure which) that would work in the valve fitting. Success! With the extra hose, the fitting, and the rubber gaskets, I now have hot water at my kitchen sink and dishwasher. Despite the extra expense and days of trying new solutions I only took off 1 star, because it really is great once you get it working. And if you don’t need to hook it to two fixtures then you don’t need the extra hose and adapter.
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Reviewed in the United States on November 24, 2025 by I love quality.
Style: 2.5 Gallon
Great shop under sink shop water heater.
Reviewed in the United States on April 12, 2026 by Donnie Allee
Style: 4.0 Gallon
Product leaked. Needed extra pipe tape to fix. The included tape is too thin to seal.
Reviewed in the United States on January 15, 2026 by Ron K.
Style: 2.5 Gallon
Good buy Quick heat Easy hook up. I'll be buying more
Reviewed in the United States on October 20, 2025 by Robert Chantelau
Style: 2.5 Gallon
Honestly not a fan for my mobile coffee cart. It didn’t perform consistently for our needs and just wasn’t the right fit for our setup. Might be better suited for light or home use, but not ideal for higher-demand use.
Reviewed in the United States on March 17, 2026 by Stephaney
Style: 2.5 Gallon
Purchased about a week ago. Except for a couple of small leaks (which I quickly fixed with more tape) installation was straight forward and simple. Product works as advertised, HOWEVER, due to my own ignorance of the basic laws of thermodynamics, I was shocked that I can only get about half a gallon of really hot water before the incoming cold water cools the hot water down precipitously. If I had anticipated this I would have paid the extra $30 to get the 4 gallon model. The wattage is the same and takes up just a little larger area. With all that being said, the product works as advertised. I do not recommend this and would encourage you to purchase the larger model. Can I get a return? Probably not because it works. I will try, though.
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Reviewed in the United States on November 22, 2025 by Larry Johnson