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  1. #1
    Join Date
    Jul 2008
    Posts
    9

    Heil: Dual Fuel or Gas/AC? Also, filter '?'

    I am pretty sure that we have decided on a contractor, just wanted to get some opinions on the systems we have narrowed it down to.
    We are now sure whether we should put the extra $$$ up front for dual fuel or stay with gas/AC (this is for our downstairs, we have a heatpump upstairs total house sq ft: 2250; downstairs 1100ish). Local rates are $.0894/kwh (+$7.01/month customer charge) and $1.437/therm (+$5.00/month customer charge).
    The systems we are looking at are:
    Heil VS90 Gas Furnace 75,000btu
    Heil DX1400 AC 2 ton
    or
    Heil VS90 Gas Furnace 75,000btu
    Heil DX1400 Heatpump 2 ton

    Oh, we live in Charlotte, NC.

    Also, do you have any rec's for a whole house media filter? We have also considered the 4" MERV 10 filter that sits where a 'normal' filter does. Any opinion on the UV light set-ups?
    Thanks!

  2. #2
    Join Date
    Jul 2008
    Posts
    9
    Anybody??? Please...

  3. #3
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    66,800
    Dual fuel will save you money on your heating bill. With your posted rates, the HP should be cheaper down to about 30 or 25°F outdoor temp.

    You may like this contractor, but does he like you?
    A 75,000 BTU 90% efficient furnace for 1100 sq ft first floor? Sounds too big. Unless you regularly get winter temps of -20°F. Or have walls of glass.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  4. #4
    Join Date
    Jul 2008
    Location
    Alabama
    Posts
    658
    HEil does make a 50 kbtu VS 90 furnace.

    That will be plenty of heat!!

  5. #5
    Join Date
    Jul 2008
    Posts
    9
    Hmm, good question! It will be replacing a 90,000btu furnace. I did ask him when he said 75k if that was still too big, but he didn't seem to think so with it being downstairs. I will question him further for sure! Any thoughts on a whole house filter? Thank you so much!

  6. #6
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    33,398
    1100 sq ft with living area above it in a mild climate? Even 50K is likely too big but about the smallest you can get in a 90.

  7. #7
    Join Date
    May 2007
    Location
    DC Metro Area (MD)
    Posts
    3,350
    A whole-house media air filter is good to have for better filtration and protection of the equipment.

  8. #8
    Join Date
    Jul 2008
    Posts
    9
    Sounds like I will have a busy day tomorrow... Either the guy I like will come to his senses on the btu's or I will be on the hunt for another one. There's no sense in replacing an old oversized furnace with a new oversized furnace. I'll be sure to report back. Thanks, again!

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