Electric Tankless Water Heater 6.5kW 240V, WINTEMP Provides hot water on demand without a storage tank, featuring self-adjusting temperature control, digital display and overheating protection ETL

We got the lowest voltage unit but it still needs a 30-amp GFI breaker. So we got an electrican to do the electric upgrade and we did the water lines ourselves. The electric upgrade was $285.00 for labor and $100.00 for a 30-amp GFI breaker from Amazon. So all in was $500.00 and at this time, 30 days into this, the system has only been installed 36 hours and the water temperature is only luke warm, Wintemp won't answer anything but an email (Back to the drawing board..).Just discovered that the new plug that was installed for the 30 amp GFI outlet needed adjusting. The prongs on the plug were misaligned and not fitting together within the outlet. Simple fix so far. Our heaters working perfectly..!! Waited for the water to heat and because of our michigan cold weather this heater won't heat our water above Luke warm and the next model up requires a $7 to $800.00 upgrade to our electric panel so it's alot more to this system than buying it and plugging it in.2/28/2025 update.I just received an email from Wintemp for the second time. The first time was for a free upgrade to a unit that would handle our cold Michigan water and the second is for a full refund. Great customer service from Wintemp..!!

worked for less than a month and then died - worked well for the month it worked. beware

Wife: “I have not had hot water from the tap this fast! Our tankless water heater works great, but it is pretty far from the kitchen meaning lots of lost water before it gets hot. Now, it takes about two seconds! I love it!”Husband: I installed this heater after having gone through 2 or 3 pumps that would recycle the hot water at the installation point (Ch……r) that cost about $500. They work until the pump bearing goes which requires a new pump, and they are noisy to boot. This heater is quiet, easy to connect, and will make good use of our solar power. As you can see, my wife loves it and I have already connected the 120 v unit for our master bath sinks. One more to go for the garage/work shop. The best part is that all units are connected to the hot water house connection drawing water from the tankless. As the water warms less heating is necessary until none is required when the draw water is at 120 degrees. This unit worked from the first use with no hiccups. I have talked to customer service and they are very responsive!

By the time I got an electrician to install this unit, the return period expired and it does not work. So, I am stuck with a bad unit. Rep issued full credit after refund date.

You must use 10-2 wire for connection & a 30 amp breaker. If you don't you will constantly trip the breaker. Do it right the first time. We are new construction so easy. This thing work great. Turn it on low pressure @ first do you can get the water hot. I have min set @ the ideal temp & it is scorching hot. If it gets too hot I just use my faucet mixer like any other time you are mixing cold to hot. I like it because it doesn't use a lot of space & works perfectly. I had a Bosch which took the entire half under the sink up in my last house. We had another that we returned it was junk. Love this model.

Got this water heater to install in a skoolie renovation project - meant to give hot water to a sink and shower. The water definitely gets hot, but it doesn't stay hot for very long. I found you could get a solid few minutes of hot water, and after that it would quickly turn cold. If you turn the water on to be barely a trickle you can make it last longer, but that doesn't make for a very quality shower experience.If all you need is lukewarm water (or don't have very strong water pressure) this will for sure do the job for you. Otherwise, I'd probably look elsewhere and invest in one of the more expensive options.

UPDATE 1.20.24 - WINTEMP Customer service team reached out to me after I left this review. They offered to make this right by compensating me for the additional cost I incurred of having to have the electrical work re-worked to accommodate a more powerful heater. That type of service is OUTSTANDING! WINTEMP does offer more powerful heaters so before you purchase, know your water inlet temp, and know your water GPM rate. This will help you choose the right heater for your needs. Thank you WINTEMP!This is regarding the 3.5KW model. The water does not get hot enough for our use. I found that if you reduce the flow of water to about .25 to .5 GPM, the water will get hot. My kitchen has standard water flow of 1.0 GPM and if turned on all the way, the water only gets luke-warm, does not get above 91 degrees. This heater will only work in a very low-flow situation, .5 GPM or less. If you want the ability to heat water in a faucet that has a 1.0 GPM rate, buy a unit that has more KW. WINTEMP has higher KW models. Unfortunately, I found that once you get around 8-9KW, you need to go to 240 volts.

This unit heated water at the rate of ongoing gallon in 3 minutes 25 seconds to a temp of 100 degrees. This is a pencil lead sized stream. Not even enough to wash your hands. On the up side it was easy to install. Now I will reverse that and put back my 2 gallon electric tank water heater. I'm very disappointed with this unit.