Tankless Water Heater

Gas doesn't need the electricity.

 

It does if the unit is high-efficiency, for the exhaust blower.

 

If you don't have good water pressure, then I would stay with a standard water heater. They are less sensitive to low pressures.

Also, if you are in a City Jurisdiction or within a few miles of a new development where they pressure test the water often, then the instant hot water heaters will leak or worse burst! I always suggest a pressure regulator for clients who insist on them.

We had all the units in a brand new retirement home without a pressure regulator on them and they all burst one day from the City Water Dept. testing the water lines in the area.

 

I’m so glad I came here inquiring before building a new house, not.

Went with what’s in vogue plus what wife wanted and ended up with a tankless useless water heater. But I do own a Honda EU2000 with extension cord which will run that pos in an outage.

 

A traditional gas tank style heater, no. Gas tankless will not function without electricity. An electric tank style heater will keep the water hot enough to get you through a short duration power outage.

 

Building a new home and using a tankless unit for basement and garage radiant in floor heat. For the rest a tried and true gas tank unit. They are cheap, readily available and do the job. Unless your tight on space for some reason I would stick with a tank.

 

spend the money for a commercial grade water heater. I would only recommend a AO smith brand. for a house that big 50gal at min. and if you have a gas line get a gas water heater. I have an AO smith proline XE 50 gal. I paid $900 for it. but it has a lot of features not on a consumer grade heater.

https://www.hotwater.com/water-heaters/residential/gas/proline/

 

but that is just a 110v outlet. it doesn't need hardwired. if there is a plug nearby that's all it needs.

 

Re-read his post.

 

im not following you. I see he is speaking about having power outages but I'm not responding to that. I'm responding to the fact high efficient water heaters only need to be plugged into a wall outlet . they wont require him to get it hardwired by an electrician. it's a small electric motor that could be used with an extension cord.
but even if he had the power go out and has a generator, he can have hot water.

 

No.

 

Ha. Extension cords with racers/track day folks.

Is there a problem with a 100' 16ga extension cord running a 1000W set of tire warmers ( or two sets)?

Will the blower start/run on 80-90 volts?

 

I put in a 50 gal hybrid water heater several years ago and it seems to be doing fine. I only use the heat pump part of it and our family of 5 doesn't seem stress it at all.

 

Depends on how big a capacitor you stuck in it.

 

consider a nice mechanical timer for the electric water heater... will double or triple element life. Yes they can be by passed if you have demand. Timer pays for itself in a couple 6 months.

 

I have had a tankless gas Rheem for the past 10 with absolutely zero problems, besides an almost nonexistent gas bill and endless supply of hot water which is very important when you have teenage daughters....

 

I have a 2br rental with a single mom & her daughter. The building used to be a garage in the 1970s and was converted to a mother inlaw suite of sorts. Over the years Ive attempted to bring it up to code and I never really had enough vacancy time to do anything major. Seems to attract the creative types who dont mind flat roofs and aluminum framed winders. On the side of the building is a 200 gallon propane tank that was painted yellow. Tank is in good shape for its age... dreading the day it has to be removed. I put a fence around it so it doesnt catch anyones eye...lol It used to supply the 2 story house in front but the only appliance it powers now is a tankless w/h which runs the tank out at the most inconvenient time...lol. I had to start marking my calendar years in advance when it will need to be refilled, which is coming up in Sept. I think it was 2009 the last time I replaced heater...and it was a rheem model that was on the blow out table at a local plumbing supply because 99% of what they sell is electric.

 

why?
it's plugged into a 110v outlet.

 

If you have an electric water heater you could always replace one of the elements with a DC unit from an RV and run it off of one of these and a couple of solar panels.

The panels will heat it during the day and the grid will take over at night.

https://practicalpreppers.com/product/solar-direct-hot-water-controller/

 

Because it’s an appliance. A permanently installed appliance. And by code, permanently installed appliances cannot be connected with an extension cord.