InSinkErator H990W-SS White Euro Instant Hot Water Dispenser

Looking over the reviews on Amazon suggested this was the best of the InSinkErator hot water products. I’d been quite satisfied with an earlier version of this product, even though I’d tightened the mounting nut too forcefully and it had cracked the shell. It worked all right even though the crack gradually grew bigger.

It gave up the ghost after about seven years, when it would no longer heat the water. Not too shabby.

This newer version looks the same but needed a slightly enlarged mounting hole, entailing more drilling through our porcelain kitchen sink. The mounting nut is now a wing nut, intended for hand tightening only. It’s murder to get my hand up into that corner of the sink, but after about two weeks of watching it wobble, I managed to tighten it up just enough, and now it sits solidly, no cracks or crevices anywhere.

What I REALLY appreciate in the new version is the thermostat allows me to keep the water at just below boiling. The higher temperature works better (and quicker) for steeping tea.

Highly recommended.
Rating: 4 / 5

The dispenser works well. Installation was more difficult than with previous model. Securing the faucet is much more difficult than on the unit being replaced. The installation kit should include a tool for tightening the wing nut that secures the faucet.
Rating: 4 / 5

This product is generally easy to install, although I agree that the wing nut can be cumbersome to secure. That’s the toughest part about securing the tap itself to the sink or counter. The rest of the factors will depend on your plumbing and how much room there is under the sink.

The biggest problems I had, unrelated to the device itself, were getting enough room to locate the tank under the sink, and inserting a tee (not included) which required me to remove my disposal and unhook my faucet to have enough slack. With the tee in place, it’s a matter of hanging the tank on the two included screws, hooking up the copper line to the tee, and snapping or pushing three plastic lines onto the tank.

Before plugging it in, make sure that the tank gets filled with water by turning the tap. After plugging it in, you will hear hissing and gurgling, and have hot water spitting randomly from the tap, but that’s a normal part of the break in period. After a few hours of break in, you will have instant hot water.

Whether it’s a breeze to install, or a multi-hour headache will most likely depend on factors unrelated to the device itself. But the manufacturer could not have made it much easier, aside from replacing the wing nut with a nut and including a tool to attach it.
Rating: 4 / 5

Installed with a new sink as an upgrade. This unit works great, however it makes some noise when heating the small tank of water. My wife loves the instant “tea water” instead of using the microwave that took two minutes to do the job.

Great unit!!!!!
Rating: 5 / 5

This is my fourth ISE Hot Water Dispenser. The first three lasted anywhere from 2 – 4 years each, before the tanks started leaking and the units had to be replaced. In addition to the tank problem the first two units had failures with an internal thermal switch. It’s about a $15 part that was fairly easy to replace if you are somewhat handy with tools and are not afraid of working with electrical components. On my third unit, the hot water tank was redesigned to include a different type thermal switch that was re-settable, like a circuit breaker. That successfully eliminated the thermal switch problem. It seems that the design of the tank for this appliance is continuously evolving. My first unit had a copper tank, the next two had plastic tanks, which I hated, and now this one has a larger (2/3 gallon) stainless steel tank. Seems like a move in the right direction. Installation was easy. I’ve set the external thermostat (a nice addition) to 190 degrees and it heats the water to that temperature without any spatter. I’ve verified the water temperature with a digital thermometer. On the previous units I would get spatter at 180 degrees. Since I’ve only had this unit for a month, I can’t predict if it’s going to be more reliable then the previous collection I had, but so far it has performed flawlessly. I would like to add that even with the problems that I have experienced with the ISE hot water dispensers, for me it is a very useful appliance, and one that I do not hesitate replacing when it gets to a point where repair is simply not an option.
Rating: 4 / 5