Ranein 8kW Tankless Electric Water Heater, 240V on Demand Instant Endless Water Heater with LED Temperature Display for Bathroom and Kitchen
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FREE 30-day refund/replacement
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Availability:
In Stock.
Arrives
Wednesday, Aug 5
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Model: RE8K (8kW)
Features
- Note: Make sure this on-demand electric water heater is sized for your hot water needs: 8 kW; 240 V, circuit breaker required: 1 40 A; unit dimensions: 10.7" 7.9" 2.8"; water connection: 1/2" NPT.Note: No need to disassemble the housing for wiring.
- Save: Compared to tank-type water heaters, tankless models eliminate preheating requirements and consume no energy when idle, saving up to 60% in heating costs. Additionally, their compact design allows flexible installation in any location.
- Powerful: The 8 kW electric tankless water heater achieves 99% thermal efficiency with a flow rate of up to 1.9 GPM, ideal for 12 usage points throughout the home. Instant hot water delivery with no waiting for preheating ensures an endless supply of ample hot water.
- Simple: This electric instant tankless water heater features intuitive knob controls and an LED display. Temperature adjustments range from 86F to 131F in 1F increments, allowing precise control for stable, reliable hot water.
- Safe: Separated heating elements prevent scale buildup while offering leakage protection, overheat protection, and automatic shutdown for enhanced safety.
Brand: Ranein
Power Source: ac
Product Dimensions: 10.69"W x 7.85"H
Special Feature: LED Display, Overheat Protection, Leakage Protection
Color: RE8K, Silver
Power Source: ac
Special Features: LED Display, Overheat Protection, Leakage Protection
Maximum Temperature: 131 °F
Heat Output: 8 KW
Mount Type: Wall
Item Dimensions W x H: 10.69"W x 7.85"H
Color: RE8K, Silver
Style Name: 8kW
Brand Name: Ranein
Model Number: RE8K (8kW)
Manufacturer: Ranein
Included Components: water heater
Material Type: Metal
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
Model: RE8K (8kW)
I recently purchased the Ranein 8kw water heater for our guest house. We are using this for a single shower and two sinks. The unit arrived quickly. It was easy to install and has a very thorough display with what seems to be high quality components. We used the template to place the mounting screws and mounted it under our kitchen sink. So far it works great, the price was excellent, the water temperature will get much hotter than we need it at this time. We did not experience any leakage after install. I expect this will be a great addition to our guest house.
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Reviewed in the United States on July 7, 2025 by Eric
Model: RE13K (13kW)
Why did you pick this product vs others?: This product is an excellent excellent by affordable works. Great throughout the whole house. Have no problems. Whatsoever, I found it by reading the reviews so you can trust the good ones. Or you can trust the bad ones.
Reviewed in the United States on July 8, 2025 by Tony Varlas
Well got water heater a few days ago it was replacing an old tank water heater that started leaking. So had to do some replacement of connection a wiring an up grade my breaker, but definitely a lot smaller doesn’t take up any room hardly at all lol. Had to do some reforcement to wall to accommodate the mounting. Seems to work great but not had long enough to really say will update when had time to know more. But think I’m really going to like it. Up dating my previous review now that I’ve had water heater for over a month now will say I definitely glad I bought it love it plenty of hot water for old aching muscles lol works great just hope it holds up as good time will tell on that but well pleased 😀 with it if holds up as well then 5 Stars from me. It is instant hot water but got to remember water that’s in the lines isn’t heated it can’t do that but get there much quicker than old one lol still playing with temperature settings figuring out the best temperature setting did turn down a few degrees lol was getting to hot 🥵 lol but it last I be very happy with it lol do love that doesn’t use any energy when not in use so expecting a little break in my electric bill lol I hope!!!!
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Reviewed in the United States on June 15, 2024 by Randal S. Randal S.
Update: Was contacted through Amazon by the company after we already started the refund process. I deletes the email. Then was called on the phone by the company in the middle of my work day. Told them if the contract myself or my husband again we will take legal action for harassment. I say it again DO NOT BUY FROM THIS COMPANY. We bought this product hooked it up. Tried to program it, all it did was beep. Tried you tube videos and even videos from their web site. Then Tried to live chat them only got a robot for over 2 hours. Tried to call them, left 10 messages. Emailed them 3 times. Left messages on their Facebook, Instagram and Twitter or X. Nothing. Product is being removed from our house and returned. DO NOT BUY THIS PRODUCT!!!!!!!! Only gave it one star because I couldn't post this. Again DO NOT BUY THIS!!!!!!!!
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Reviewed in the United States on August 9, 2024 by Amy Glovier
I had the unit installed by professionals, a plumber and an electrician. Installation was pricey. When all was done it wouldn’t turn on. With electrician standing by I called customer service several times but reached voicemail. I left a few messages. I also sent an email asking for an immediate call back. This was at 1:30 EST on a weekday. The electrician kept messing with it, shutting off breaker, unplugging the circuit board, etc and thankfully it finally came on. That was two days ago and the company has not returned my calls or even my email. The water heater works but customer service is lacking if there is a problem. I’m giving three stars since it’s working now, fortunately. If I had to have the electrician make another house call and had to take cold showers while waiting for a response it would be zero stars.
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Reviewed in the United States on October 11, 2024 by Marathon Mama
Model: RE13K (13kW)
nice quality. Good price. Haven’t installed yet but we have another one in cottage and love it !
Reviewed in the United States on July 7, 2025 by Rachel Young Combs
We replaced the old, rusty, crusty tank! We love how easily we could self-install in our garage. We took precautions to insulate the pipes just in case of a Dallas freeze. The price was great. We always thought having one would be an arm and a leg. Sometimes, the water does not come up to the temperature. We have it set at 124°, and it pushes 104° from the garage to the clothes washer. But traveling water to the upstairs bathroom is satisfactory. What in the world did we do without this all this time?
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Reviewed in the United States on January 7, 2025 by veranina g. veranina g.
This 14 kw unit is about the largest I could put on to the existing 60 amp double throw breaker circuit. It seems well built and produces the hot water that we need but has kicked offline with an "E1" error more than once which, according to the manual indicates insufficient flow for the set temperature. Flipping the breaker off and on resolves the immediate lack of hot water. If it happens again, I'll try setting the temperature slightly lower, at 120F instead of 122F. It could be that our house uses an on-demand pump to drive water around the house, including to this on-demand heater.
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Reviewed in the United States on July 18, 2024 by Mary F. Phillips