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JMLM1998
One furnace or two?

I recently purchased a four-square house built in 1908. The house is 750 sq ft upstairs and 750 sq ft down stairs with a full basement. I am trying to determine if I should put one furnace in to heat the entire house or if I should put one furnace in the basement for the 1st floor and one in the attic for the second floor. Does anyone know if there is a way to determine which option is best?

Thanks!!

ed21
Re: One furnace or two?

Your house is certainly small enough to be heated by one furnace.
The first cost for 2 furnaces will be much larger than one furnace sized to heat the whole house. I guess where to run ducts is an issue. What type of system do you have now?

JMLM1998
Re: One furnace or two?

There is currently one furnace in the basement that heats the house. The duct work is in good shape and is rigid metal.

ed21
Re: One furnace or two?

I would go with one in the basement hooked up to the existing duckwork. Basically switch out the old unit with a new one.

JMLM1998
Re: One furnace or two?

Thanks ed21! I thought the same but mine was uneducated. Thanks again for the help.

canuk
Re: One furnace or two?

Ditto to what ed21 said .... if you want look at zoning the first and second floors.

JMLM1998
Re: One furnace or two?

With regards to zoning the first and second floors. Will this allow me to have a separate thermostat for each floor? Also, what can I expect to pay for adding a zoning option?

canuk
Re: One furnace or two?

Yep ..... you will have seperate thermostats for each floor.

Costs will depend on the brand ... model .... contractor ... region.

Bob Gabrilson
Re: One furnace or two?

Zoning will cost around $4,000. It works beyond belief.

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