Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: can EMT2.5 be installed on to existing hot water line , in other words can you install existing hot water line on supply side then outlet downstream?
Document: Eemax 2.5 gallon electric water heater. It had to be mounted outside of the cabinet instead of under it. It is being used in an old church building with brick and plaster walls, which required special mounting bolts for attaching the bracket to the wall. After several trips to the supply store for plumbing supplies, I was able to quickly install and test the heater. It worked fine. I had to adjust the heat thermostat a couple of times so that it would deliver hot but not scalding water.
The Eemax EMT2.5 installation couldn't have been quicker or easier. Now I have plenty of hot water for my office lav.
I love this machine. There's nothing better than having instant hot water in the morning to shave with. Very easy to install and very reliable. Maintains a constant supply of instant hot water.J Sweatt
It is fed by the hot water line and the hot water supply is essentially instantaneous and continuous, that is, the hot water from the main water heater arrives before the small tank is emptied. Because the main heater is set at a slightly higher temperature, the small electric heater does not even turn on.The unit appears to be very well constructed and comes with detailed and clear instructions. Almost too detailed - I hope I don't need to replace the heater, thermostat, or anode anytime soon.
Not to bad to hook up you need additional pvc plumbing to hook to drain. Cost around $30 for all additional water lines and pvc parts. Definitely put plumbing tape on pressure valve and tighten as much as you can otherwise it leaks. It works great for small use but 2.5 ga doesn't go to far, I also hooked it up to the hot water line. But note my water has to travel along way from hot water heater.
I originally purchased an Ecosmart Point of Use 3.5 KW unit and it barely warmed the water. This unit unit plugs into a standard 110V Outlet where as the Ecosmart required its own seperate 30 amp breaker. The dimensions are a bit bigger but as long as you have the room for it, go with this model.This unit will work well for a sink application but not a shower.
Installed this item. It was DOA. The light did not turn on, it did not heat any water and it had an internal leak. It is a piece of junk and to top it off as I did not install it within some short time of receiving it, I can now get only a partial refund. The item is garbage and the return policy is garbage. Don't buy this thing
What I received was not as pictured (purchased via Amazon from Bargaintory); I received a round unit, not rectangular as expected. And to boot it didn't work when It was installed. Install instructions and troubleshoiting sections were useless (i.e. didnt even show location of the on/off switch). Waste of money. Buyer beware.
I bought this product exactly a year ago and had it installed probably 360 days ago. It stopped working about a month ago. It only worked for 11 months.I figured it was under warranty and looked for the manual. The manual said it had a 2 year warranty for electrical and 5 years for leaking. But the manual is worded misleadingly.They will not replace the unit. What they want the customer to do is to pay someone to diagnose the problem.
We purchased this little heater to use as a pre-heater during the winter months when the water gets way too cold for our small 3GPM tankless to function well. The thing works GREAT! We have it on a switched outlet so it is only on when we need it. We have it set at about 110 degrees just to pre-heat the water. About twenty or thirty minutes prior to taking a bath, we switch it on and the water is hot in just a few minutes.
Answer: yes