This heats up water much faster than I would've expected. Compared to the old one this unit is night and day. It's surprisingly light which makes the install much easier. Everything included to swap it over and it's a dead simple install. The tank feels very well made and is super easy to get dialed in to the temperature you like. We used this for a bathroom in the shop that only has cold water and it's made life so much better.

Compact, it fits in the same space that might 2.5 gallon small heater fit in. It came with connecting hoses. Heat's very quickly. Satisfied so far.

I really like that this under sink instant hot water heater is larger - 4 gallons instead of the usual 2.5 gallons. It takes a bit more room but supplies more hot water. And being larger, it retains the heat longer requiring less reheats. We use it to heat the hot water at a utility sink we use every day. We are actually feeding the under sink water heater, not with the cold water line but with the house’s domestic hot water line. The run from our large water tank, which is at the other side of the house, is so far away that it takes minutes before the hot water arrives at the sink. Having four gallons of instantly preheated water is really nice and it eliminates the water waste going down the drain waiting for the water temperature to rise.This model is rated 110 VAC at 1500 Watts – the same as a hand held hair dryer. Simply plug it in and go. OK, there is some light plumbing work but not bad. The upper 108 psi rating is fine since residential water pressure ranges between 45 and 80 psi. The UL certification is also great.The product’s text description says the tank has been upgraded to a 304 stainless steel tank body. On the other hand, the product’s photo shows low carbon stainless steel, an enamel coating, and a magnesium anode. This is conflicting information. Most large residential water tanks, because of cost, are made of carbon steel and have a porcelain enamel inner tank lining. They require a magnesium anode to control corrosion. Stainless steel costs more but, with a small four gallon tank, 304 stainless steel can be used. Stainless steel has a longer lifespan, better corrosion resistance, does not need a lining, and does not need or require a magnesium anode. Since the plastic case with foam insulation looks like it cannot be easily opened, replacing a magnesium anode does not seem possible. So I think the text saying the tank has been upgraded is correct and the descriptive photo is wrong. I think this is truly a stainless steel tank – good news.I like that the controls are simple since this is an under cabinet unit that you seldom see. The green led means power is available but the tank is not heating. The red led shows that the tank is heating. Finally, there is a single knob to set the temp or turn it off.I wish the pressure relief valve was actually connected to a third tank port like the ones I am familiar with. This uses a little in-line valve on the cold water inlet port. I am unfamiliar with these little pressure relief valves that also have a one way valve inside. We’ll see how it does over time. I checked and they can handle water temperatures up to 100 degrees Celsius or 212 degrees Fahrenheit so feeding it heated water from our other water heater shouldn’t be a problem.The instruction manual covers 8 different models though not specifically listing the model numbers and shows hard wiring the power instead of the simple US plug. The installation information in the manual is a bit confusing – good thing the water heater is so simple to install. The manual lists 6, 8, 10, and 15 liter tanks each with either top or bottom connection ports. The model I ordered is the 4 gallon or 15 liter top connection ports and it came with the parts needed to install. Teflon tape is not included and not needed since all connections have compression and cone washers.Very pleased – we have hot water – instantly.

Super easy install! Works great! Installed this in an outbuilding for use as a summer kitchen! Love it!

What I liked about this. Very small power draw, (only 1500 watts) super light, relatively small, good for under sink install. Obviously I can't give any long term review. I have not installed this yet, but it seems really light. does light mean cheap???? Not sure yet. Once I get it installed and tested I will update the review. I plan on using this in my tiny home under the kitchen sink. I'm working on getting a more permanent setup, in about a year, so that is really all I need this for is to cover the gap. I hope it works as well as other reviews say.

This is a very easy small water heater that doesn't take an electrician to wire it in. Some of the other ones are higher wattage, but those require having a special circuit breaker that is rated higher than a standard one. This one is essentially plug and play.

.Nicely made. Easy to install. Standard AC plug. Convenience all around.Great solution for a remote sink in the garage. Brings hot water easily to a home rec room sink.It's convenience and performance brings value to my use.

To be upfront, I have not finalized my installation of this mini heater yet. I have to make some changes to the location I want to install it.However, I am thrilled that this unit has passed UL certification. So that was one of my primary reasons for choosing this model.The heater itself looks good, and is compact and simple to install.Operation is a breeze and as long as you follow the usual instruction of letting it fill up before turning it on you should have trouble free service for quite a while.This heater is perfect for my unique situation and hopefully will help me lower my electric bill from my usual stove heating of water method.I have not found where to get replacement anodes yet, I know it needs to be inspected yearly to make sure the tank stays good. Hopefully anode replacement is as simple as I have seen on some youtube videos.I have used this in a temporary hookup already and had no leaks and no issues, and I am eager to get this installed as soon as possible in my kitchen.