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Thread: Hybrid Oil

  1. #53
    Join Date
    Jun 2008
    Location
    N. Virginia
    Posts
    25
    Quote Originally Posted by beenthere View Post
    Zoned, he'll get better efficiency from the 16 SEER then the single stage 15.

    Won't short cycle or trip the DATS like the 15 will. So less chance of short cycling.

    Improved moisture removal over the single stage.

    Be able to use first stage at higher and lower outdoor temps.

    EWC zone panel can be set not to use second stage unless both zones are calling.
    I'm now getting quotes for the two-stage system. (This is now "round three" of the quotes. If these guys don't either give up on me or put a hit on me, it'll be a miracle.) Note that I have an oil furnace; no NG in this area.

    The first quote came in this evening -- and he stated that the best oil furnace is still AFUE 80, and that I'd have to consider a move to propane to get above 90% efficiency. Is this accurate? I thought there were sealed-vent oil furnaces with AFUE ratings above 90%.

    Am I off-base here?

    - V

  2. #54
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    66,818
    You don't want one of those PITA condensing oil furnaces.

    Standard 80 to 82% is fine.
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    How many times must one fix something before it is fixed?

  3. #55
    Join Date
    Jun 2008
    Location
    N. Virginia
    Posts
    25
    Quote Originally Posted by beenthere View Post
    You don't want one of those PITA condensing oil furnaces.

    Standard 80 to 82% is fine.
    I could see that, since I live in an area with mild winters, the difference in savings between an 82% oil furnace and a 92% oil furnace isn't very dramatic, considering that I'm putting in a hybrid system (i.e., the HP will run most of the time). But why don't I want a condensing oil furnace? What makes them a PITA?

    Thanks!

    - V

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