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  1. #1

    variable speed or not?

    Was wondering if the variable speed is worth it. If something happens to the motor how hard is it to get parts? Would you install one in your house? If you have one, do you like it. Thanks

  2. #2
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    68,168
    Depends if you think your comfort is worth it. Low humidity areas won't get a big advantage using one.
    Parts are easy to get. In some areas they may not stock them.

    Yes I would install a VS blower in my own place.
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  3. #3
    Join Date
    Mar 2006
    Location
    The South
    Posts
    2,209
    topher

    i would not purchase a new HVAC system without var speed blower. Yes if you have a failure on the blower motor not covered by warranty, then they are expensive to replace. But I have not seen any objective evidence to indicate they are more problematic vs a conventional blower. Var speed really is becoming the standard for high end, high eff systems.

    IMO

  4. #4
    Join Date
    Jun 2007
    Location
    Round Rock
    Posts
    3,569
    Variable speed is great. I keep my thermostat set about 2-3 degrees higher than I did without one. You do need properly sized returns and you can't let your filters get clogged. If you do, you will be replacing the control module, this is what controls the variable speed on the motor.

  5. #5
    Join Date
    Jun 2007
    Location
    The Twilight Zone
    Posts
    2,964
    Quote Originally Posted by ctopher View Post
    Was wondering if the variable speed is worth it. If something happens to the motor how hard is it to get parts? Would you install one in your house? If you have one, do you like it. Thanks
    I would make sure that I got a 10 year parts and labor warranty on a system with a variable speed blower. Big bucks to replace the v-s motor if it should fail out of warranty.

  6. #6
    Join Date
    Jan 2008
    Location
    Boaz, AL
    Posts
    52
    I would put a v/s blower in my house I love the slow startup instead of the sudden on you get with a conv. motor.

  7. #7
    Thanks for all the replys.

  8. #8
    Join Date
    Dec 2002
    Location
    Rochester, MN
    Posts
    5,304
    I have had it in my home for 4 years this fall, and very pleased with how quiet it is on start up, and I run my blower 24/7 in the heating season to just keep the air moving for comfort reason.

    My uncle has it and I think they are coming up 10 years on it now, and been pleased with it.

    As other pointed out, don't cheap out on it.. Get the 10 years parts and labor warranty on it.

  9. #9
    Join Date
    May 2007
    Location
    somewhere between heaven and hell
    Posts
    957
    Very nice equipment but a little spendy. I myself would have one. When I sale a VS I always let my customers know once warranty runs out that VS module/motor is very expensive to replace. I do not hide that from my customers. So far no complaints and my customers love them.

  10. #10
    Join Date
    Sep 2005
    Location
    Texas
    Posts
    2,793
    the #1 killer of ECM motors is incorrect duct sizing, otherwise they are very reliable and extremely efficient

  11. #11
    Join Date
    May 2008
    Location
    Spfld, IL
    Posts
    108
    I regret not putting in a variable speed furnace.

  12. #12
    Join Date
    Jun 2007
    Location
    The Twilight Zone
    Posts
    2,964
    Quote Originally Posted by stevensondrive View Post
    I regret not putting in a variable speed furnace.
    I purposely chose not to install a v-s air handler for my new heat pump. I like a little noise coming from the vents to drown out street noise. I also wanted an inexpensive and easy replacement should the motor fail after the warranty period.

  13. #13
    Join Date
    May 2008
    Location
    Spfld, IL
    Posts
    108
    that is ironic. I put the 95% furnace in this winter. I planned to put in a 14 SEER r22 condenser to match it. I have since changed my mind and am putting in a 16 SEER r410a heat pump this weekend. I told the guy at the supply house that it is my first heat pump install and first 410 install. He smiled and said it was his first 16 SEER sale.

    With the $135 thermostat it will run as a normal heat pump until it gets to a set outside temp whereas it switches to the gas furnace.

    Goodman has a lifetime compressor warranty and our local utility will give me a $1100 rebate for installing this heat pump. it is a no brainer!!

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