HW advice New construction

fcoats49 · Jul 9, 2007

I am planning a new house of about 2700 SF. It will have split bedrooms and baths with 3/2.5. I live in central MS with winter temps going to about 10 degrees for only a few days and not at all some years.

I am thinking about hot water needs with only the baths having heated floors and for DHW for the baths and kitchen.

I had thought about 2 tankless units (one each end) until reading some of the postings. Thus, I'm looking for input. The local people seem to have little knowledge of this type unit in the immediate area.

Thanks for any guidance anyone can give.

GrumpyPlumber · Jul 9, 2007

fcoats49 said:
I am planning a new house of about 2700 SF. It will have split bedrooms and baths with 3/2.5. I live in central MS with winter temps going to about 10 degrees for only a few days and not at all some years.

I am thinking about hot water needs with only the baths having heated floors and for DHW for the baths and kitchen.

I had thought about 2 tankless units (one each end) until reading some of the postings. Thus, I'm looking for input. The local people seem to have little knowledge of this type unit in the immediate area.

Thanks for any guidance anyone can give.

ooooh boy!
There's alotta stuff to cover without seeing the place.
I'll first assume you're dealing with a plumber, so I'd suggest you ask him about condensing boilers with indirect hot water vs tankless.
you'll need some source for heat on those few cold days, and you obviously need hot water.
Tankless will only provide hot water...you'd still need a furnace or boiler.
In terms of overall cost vs energy efficiency, an indirect with a boiler is your best option, but be warned...the higher the efficiency, the higher the price.
I'd suggest you do a websearch for the following: Viessman, Heat Transfer Products, Buderus, and enter the words "condensing boiler" for a search.
Take what you learn and discuss it with your plumber...be sure to bring him some tylenol.

HW advice New construction

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