Page 1 of 2 12 LastLast
Results 1 to 13 of 19
  1. #1
    Join Date
    Apr 2008
    Posts
    23

    quietest heat pump?

    I am looking for the quietest high efficiency air source heat pump available.
    looking for a handler too.
    I have 2 AC only splits to replace 3 ton each.
    Thinking of keeping the oil heat for second stage so I don't have to upgrade the electric. im in massachusetts so its a mostly heating application. looking at a $6k oil bill for next winter..... if prices don't go up.


    thanks!

    D

  2. #2
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,907
    Generally all the high efficiency heat pumps have low decibel ratings.
    York has units rated at 69db. So do others.
    Find a good contractor first, he should be able to give you sound ratings of the brands he uses.
    Contractor locator map

    How-to-apply-for-Professional

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

  3. #3
    Join Date
    Sep 2006
    Posts
    1,253
    Mitsubishi City Multi 50db
    Sanyo Eco-i Mini 52db
    Daikin VRV-S 58db
    Indoor units in the 35db range depending on size and fan speed.

    Very quiet and some of the highest efficiency air to air heat pumps available.

  4. #4
    Join Date
    Jan 2004
    Location
    Lancaster PA
    Posts
    67,907
    mchild.
    Do they make VS blowers for those units that will connect to his existing ductwork.
    Enquiring minds want to know.
    Contractor locator map

    How-to-apply-for-Professional

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

  5. #5
    Join Date
    Mar 2006
    Location
    The South
    Posts
    2,189
    Dunfudgin

    Finding a good balance between noise and high efficiency can be a task.
    Keep in mind noise is measureable but can be very subjective from person to person. Here are three high end sgl stg models.

    Lennox XP15
    63 db
    http://www.lennox.com/products/overview.asp?model=XP15

    Carrier Performance 15 25HPA5
    As low as 68 db
    http://www.residential.carrier.com/p....shtml#m25HPA5

    Trane XL15i
    74 db
    http://www.trane.com/Residential/Pro...mps/XL15i.aspx

    IMO

  6. #6
    Join Date
    Sep 2006
    Posts
    1,253
    Quote Originally Posted by beenthere View Post
    mchild.
    Do they make VS blowers for those units that will connect to his existing ductwork.
    Enquiring minds want to know.
    bt,

    Not sure exactly which units you are referring. But, all the ducted units use an A/C blower not D/C blower. They are multi speed fans in which the speed is set by the control board in the unit and determined by load.

  7. #7
    Join Date
    Apr 2008
    Posts
    23
    Thanks mchild!

    that city multi hyperheat looks the nutz.
    unfortunately no 3 phase here.
    that leaves the sanyo eco i as my only choice out of your recommendations.
    cold weather performance on that unit lags the others unfortunately.

    so in general how do these systems cost wise to geothermal installations?

  8. #8
    Join Date
    Sep 2006
    Posts
    1,253
    Quote Originally Posted by Dunfudgin View Post
    Thanks mchild!

    that city multi hyperheat looks the nutz.
    unfortunately no 3 phase here.
    that leaves the sanyo eco i as my only choice out of your recommendations.
    cold weather performance on that unit lags the others unfortunately.

    so in general how do these systems cost wise to geothermal installations?

    Mitsu has the Hyperheat in a 3 ton unit single phase (limited indoor unit selection):

    http://www.mehvac.com/Products/itemD...ProductID=1713

    Not sure what you are looking at that concerns you about the Sanyo cold weather performance.

    There are lots of ways to do geo installs - some more costly than others. Your situation would have to be looked at by a contractor to determine all the issues.

  9. #9
    Join Date
    Apr 2004
    Posts
    7,680
    There is not a good standard used by mfg's to compare noise levels. At best you get a sound pressure but the distance and weighting is not nessessarily the same. The quality of the sound itself is not measureable and is subjective. For the most part, they can print anything they want because there is no one to contend it.

  10. #10
    Join Date
    Sep 2007
    Posts
    79
    This is a very important topic for some.

    I wish you the very best luck in your quest for "quiet". That is why I initially sought out this forum. Our HPs are located outside our bedroom wall (2). To move them from that site would have been MAJOR...as we have a corner lot. Would have required a 50ft copper run to second story.

    Anyway, after much traveling around listening to condensors....we ended up with the Carrier Performance units outside and FVB inside. The units are very quiet outside. The noise that I hear is a "hum" ...which is actually a bit more noticable in the second story bedroom.

    Before we could not enjoyably use our large deck because of all the incredible noise from the previous condensors. Now you barely notice them. As I said...what I do notice is a bit of a hum. Hardly worth mentioning compared to what we had. But.........I would like that to go away also.

    We considered getting one Infinity zoned system with a w stage condenser as we were told that would be even quieter when running on "low". However, we decided to stay with the two units as we were going to get into a lot of physical changes. We are very satisfied with the improvement vs. cost.

    I actually went for long walks, toured model homes, etc. trying to find QUIET.

    I wish you the best of luck. I have a hunch that "install" also counts in your quest for "quiet".

  11. #11
    Join Date
    Nov 2007
    Posts
    86
    You ‘Quest’ for quiet & high efficiency ends with a geothermal installation. That’s the ultimate in performance, energy savings (look at your oil bill, $6k – are you not in shock!!), life cycle costs, and resale value of your home and user satisfaction - end of story!

    IMO

    SR

  12. #12
    Join Date
    Apr 2008
    Posts
    23
    I started by looking at geo. But with a 10+ year payback why would I do it?
    it'll be worn out by the time i break even. It's nice and all but not that nice.
    Until there are a few more installers out this way prices will be stuck in the stratosphere for geo.


    I could buy 2 new base f-150's at list for what i was quoted for a 6 ton geo system.
    And the well was extra.....


    D

  13. #13
    Join Date
    Nov 2007
    Posts
    86
    Quote Originally Posted by Dunfudgin View Post
    I started by looking at geo. But with a 10+ year payback why would I do it?
    it'll be worn out by the time i break even. It's nice and all but not that nice.
    Until there are a few more installers out this way prices will be stuck in the stratosphere for geo.


    I could buy 2 new base f-150's at list for what i was quoted for a 6 ton geo system.
    And the well was extra.....


    D


    Not true, geothermal will have a life expectancy of 20~25 years for the HP and the ground loops will outlive your youngest grandchild – born or yet unborn!

    Geothermal will save you thousands year after year. Where’s the payback on your 2 f-150’s?

    SR

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event