This product needs a large pipe for intake and exhaust. Will not fit for everyone. Installation can cost as much as the cost of the unit and more. I had no choice but to return it. So glad to have bought from Wayfair as they made the return very easy. Thank you Wayfair

Endless hot water! It's been installed for about a year. Wanted to put one in for a long time and finally pulled the trigger. The only thing I would change is the size of it as far as output(BTU). Here in Missouri the ground water temperature gets pretty low in the winter which affects the amount of GPM. If 2 or more things are demanding hot water, it struggles to keep up because of the temperature rise required . Other than that I have no complaints. It's not really a complaint but, a better and/or more flexible way to change the temperature without buying the expensive controller. I think that should be standard on all models.

It was easy to install and doesn't take up very much room. I have only had it for 6 months, but so far, so good. I do not have any complaints so far.

Easy replacement but hard to locate on the shelfs.

Instructions provided were superb. There's a lot to consider going from a tank to tankless water heater. I took my time and everything worked out great.