Search:

Type: Posts; User: wraujr

Page 1 of 17 1 2 3 4

Search: Search took 0.02 seconds.

  1. From the Installation Manual

    This is the Ask Our Pro's forum. In order to post a response here, you must have verified qualifications and have been approved by the AOP Committee. You may ask a question by starting a new thread....
  2. Replies
    4
    Views
    2,573

    Duct inside 2x4 Wall Cavity

    So you pros say:
    "Do you realize that you get less airflow out of pipe that is ovaled? "

    So if I have an 8' tall 2x4 x 14.5" wall cavity (3.5" deep) and I don't use 6" oval to go with 6" round in...
  3. Thread: Cold air return

    by wraujr
    Replies
    19
    Views
    1,259

    My apologies, sorry for bad posting. I have same...

    My apologies, sorry for bad posting. I have same setup and contractor used turning vanes which I would think have more effect than 5" of duct. I should have started a new thread asking which is...
  4. Replies
    17
    Views
    5,501

    Had one where burner needed a good cleaning,...

    Had one where burner needed a good cleaning, especially the crossover portion as the flame wasn't crossing to the third burner fast enough. Every time I cleaned sensor it worked for a while, I guess...
  5. Replies
    16
    Views
    1,437

    Dumb Question..

    Heres a question (from a non-tech)...
    If you're adding charge to compensate for the lineset length, then wouldn't the velocity of the refrigerant remain the same no matter how long the line set??
  6. Thread: Cold air return

    by wraujr
    Replies
    19
    Views
    1,259

    Turning Vanes

    How about having contractor install "turning vanes" in the elbow???
  7. Think of it This Way

    For a forced-air furnace or AC to operate it must have a certain amount of air flowing across the heat exchanger or condenser. Yes, with newer units it could be variable with a certain range, BUT...
  8. Thread: Hornet's Nest

    by wraujr
    Replies
    15
    Views
    904

    Nothing is Perfect

    No Licensing/Inspection/Law/Control system is perfect.

    Drivers run stop signs and red lights all the time.
    Licensed contractors perform poorly and break code all the time.

    BUT, imagine how...
  9. Thread: Dual-Fuel?

    by wraujr
    Replies
    24
    Views
    1,000

    "when natural gas goes up so does electricity in...

    "when natural gas goes up so does electricity in most regions"

    Agreed as there are plenty of NatGas fired power plants.
    However I wonder if the home consumer is subject to the price spikes due to...
  10. Thread: Dual-Fuel?

    by wraujr
    Replies
    24
    Views
    1,000

    As a side note, I consider burning NatGas furnace...

    As a side note, I consider burning NatGas furnace to be more "green" than Heat Pump.
    Why???
    Because I am burning it at 95% efficiency (plus energy to distribute)
    When electricity is generated...
  11. Thread: Dual-Fuel?

    by wraujr
    Replies
    24
    Views
    1,000

    Yes, thats a good question. And almost...

    Yes, thats a good question. And almost impossible to determine with the data I have.
    What I can say is that in all heating months I analyzed, Oct thru April, the NatGas was cheaper. Even the...
  12. Thread: Dual-Fuel?

    by wraujr
    Replies
    24
    Views
    1,000

    Five Years of Data

    I am in mid-Atlantic in MD a little north of VA.
    I have 5 years of utility data, commodity and delivery costs.
    Analyzed Nat Gas vs. Heat Pump (not Dual Fuel) and so far have found Nat Gas to be...
  13. Thread: Mold?

    by wraujr
    Replies
    2
    Views
    388

    Mold?

    Is this mold growing in new equipment??
    If so should I be worried??
    Basement has had some minor flooding (2").

    226062
  14. Replies
    36
    Views
    3,153

    Very fine emory cloth followed by alcohol wipe. ...

    Very fine emory cloth followed by alcohol wipe. Flame sensor was still going strong after 8 years of pre-season cleaning....
  15. Replies
    9
    Views
    1,255

    Here's something I've always wondered, but been...

    Here's something I've always wondered, but been too lazy to get out my voltmeter... When the tstat makes a call for heat or cool, does it also engage G and make a "matching" call for fan or is G...
  16. Replies
    9
    Views
    1,255

    What Happens Next

    OK, call for 3/4 stage heat and blower shuts off, BUT what happens next....??
    Does furnace goes thru it lighting sequence??
    Do burners eventually come on???
    After some warm-up period, does blower...
  17. You said: "why would the (almost) instantaneous...

    You said: "why would the (almost) instantaneous reading of the room temperature change "

    You are assuming the tstat is displaying the "instantaneous" room temp. It is not. It is rounding based...
  18. Replies
    25
    Views
    1,865

    Excellent. I'll post back in a few days.

    Excellent. I'll post back in a few days.
  19. Replies
    25
    Views
    1,865

    Hey BeenThere, Since you have access to COP...

    Hey BeenThere,

    Since you have access to COP data and you might have a favorite performer...

    Do you have COP data for say

    16 SEER Heat Pump (any vendor but lets keep SEER at 16 or should I...
  20. Replies
    21
    Views
    1,457

    It is tough trying to do the right thing. ...

    It is tough trying to do the right thing. Especially since there are techs that have been venting to the atmosphere for years or the venting from leaking coils. I myself had a unit that went thru 6...
  21. Replies
    21
    Views
    1,457

    So to clarify. All you want: Tech come to...

    So to clarify.

    All you want:
    Tech come to house that is less than 5 miles from his office.
    Hook up and remove charge (he has to pay to dispose).
    Cap off lineset in case you reuse (involves time...
  22. Replies
    24
    Views
    1,450

    Hey BT, go easy on him I think he might be a...

    Hey BT, go easy on him I think he might be a relative of yours... :)
  23. Replies
    20
    Views
    5,685

    Have you checked condensate drain??

    Have you checked condensate drain??
  24. Replies
    25
    Views
    1,865

    Just realized, Spreadsheet does have avg temp for...

    Just realized, Spreadsheet does have avg temp for each month from utility bill. So if I had a way (formula or table) to convert avg temp to a COP. I could compare monthly instead of a single COP...
  25. Replies
    25
    Views
    1,865

    How Prices Have Flucuated

    Here's the complete graph from 2007 thru Jul 2011.
    Note that this is Cost to Produce 1 Million BTUs using "delivered" rates from an actual utility bill

    217622

    As you can see in 2008, duel fuel...
Results 1 to 25 of 421
Page 1 of 17 1 2 3 4
Comfortech Show Promo Image

Related Forums

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