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  1. #1
    Join Date
    Mar 2012
    Location
    New Hampshire
    Posts
    84

    Standard split, high velocity, or ductless...

    My wife & I bought a 60 year old house back in November with no AC. The first HVAC improvement is replacing the ancient boiler with a new one (installing next week). I am going to install AC soon but am undecided on what type of system I should go with. I have a full unfinished basement & walk up attic. I was going to go the ductless route but am now leaning toward the high velocity. When I talked to the guys at the shop, they were split 3 ways almost dead even. So my question is what would you put in & why? I am going to be cooling 3 bedrooms + living/dining rooms & kitchen. Just want some outside perspective.

  2. #2
    Join Date
    Dec 2010
    Location
    The Quad-Cities area (midwest).
    Posts
    2,606
    Quote Originally Posted by Tony3696 View Post
    My wife & I bought a 60 year old house back in November with no AC. The first HVAC improvement is replacing the ancient boiler with a new one (installing next week). I am going to install AC soon but am undecided on what type of system I should go with. I have a full unfinished basement & walk up attic. I was going to go the ductless route but am now leaning toward the high velocity. When I talked to the guys at the shop, they were split 3 ways almost dead even. So my question is what would you put in & why? I am going to be cooling 3 bedrooms + living/dining rooms & kitchen. Just want some outside perspective.
    Alot depends on the size of the home and the lay-out. I've done one system in the attic for the whole house. I've done 2 systems in larger home with high and low velocity systems. I've mixed it up with one low and one high pressure system because room limitations.

    Personally, I don't care for the ductless route look. There is no way my wife would tolerate a "box" on every wall.

  3. #3
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    33,918
    We've always used conventional ducts. Remember, cold air falls so you don't need many runs on the 1st floor to cool it. Can drop a few through 2nd floor closets. Return in the 2nd floor ceiling as the hot air will rise. High velocity is expensive stuff and kills SEER.

    Let's see a before & after of your boiler job!

  4. #4
    Join Date
    Mar 2012
    Location
    New Hampshire
    Posts
    84
    It's a single floor house. Will do on the before & after shots. I currently have an American Standard oil boiler converted to natural gas....AKA - the CO bomb. I worked out a deal with a local scrapper, He's going to haul it away & the old oil tank for free, he just wants the 150 gallons of oil left in it. As far as I can tell it's about 15 year old oil. I will be handing him my card on the way out. (yes, I warned him not to use it)

  5. #5
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    33,918
    That is a good deal!

    Single floor I'd certainly go conventional duct. You can get high SEER variable speed for less than a SEER killer HV.

  6. #6
    Join Date
    Aug 2012
    Location
    MN
    Posts
    79
    Conventional, even with a drain pan and oveflow switch, I know I'd rather have somthing that can produce so much water in my basement.

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