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Whole house reno - Going from old hot water to Gas Air.
I'm sure this sort of question is asked all the time:
We're adding a 2-story 20 x 24 addition to our 1700 sq foot house (build in 1930). We're mid-renovation (and our old furnace and radiators are gone).
The previous owner already had gas coming into the house.
We want to add A/C.
We're gutting much of the existing house and building the addition from scratch...
... so making the switch seemed to make sense.
Our contract is for two 95% (or higher) units - 1 in the basement for the 1st floor and 1 on the 2nd floor (or possibly the attic) to serve the 2nd floor.
And, of course, we have a limited budget. Any extra $ we spend on bells and whistles here are taken from other things in the house.
My 2 questions:
1) Are we going to be happy with 95% efficient system or is it really worth the bump up to a more efficient system with more features?
2) My biggest question: What about humidification??? I live near Boston and the winters are dry. We've heard every recommendation: Absolutely get some humidification... Only get it in the basement unit because we don't want an additional water liability on the 2nd floor (or attic)... Don't get any humidification because adding moisture to the ducts will severely shorten the life of the system... Instead, add a steam humidification system to avoid water in the ductwork.... Just buy a few humidifiers throughout the home and call it a day.
So, what to do?