Search:

Type: Posts; User: dan sw fl

Page 1 of 20 1 2 3 4

Search: Search took 0.11 seconds; generated 27 minute(s) ago.

  1. _ _ _ ASHRAE 99.0% is 0'F _ _ _ 7,400 Heating...

    _ _ _ ASHRAE 99.0% is 0'F
    _ _ _ 7,400 Heating Degree Days

    96% versus 80% furnace should be $194 less in operating cost per year.
    $912 / heating season with $0.20/ N.G. cubic meter [ $0.56 /...
  2. Price depends somewhat on $ize. Comfort...

    Price depends somewhat on $ize.

    Comfort definitely depends on Size.

    Are you North of 37' Latitude ?
    https://en.wikipedia.org/wiki/37th_parallel_north
    _ Which country?

    Wouldn't 60,000...
  3. Replies
    7
    Views
    157

    WHY would you want a packaged unit versus a split...

    WHY would you want a packaged unit versus a split system?

    http://www.york.com/residential/products/packaged-units/affinity/13-seer-unit-dnz.aspx
    ...
  4. Thermaflow Everhot RH 6 specs Shell side dP is...

    Thermaflow Everhot RH 6 specs

    Shell side dP is obviously minimal (0.5 ft) with 2" connections.

    http://www.tfi-everhot.com/pdfs/HeatExchanger_RH.pdfT B
    ...
  5. The 3-speed flow curves are in the Honeywell link...

    The 3-speed flow curves are in the Honeywell link ..

    ... https://customer.honeywell.com/resources/techlit/TechLitDocuments/68-0000s/68-3083.pdf

    What circulator size is actually needed? _ ???...
  6. Replies
    5
    Views
    177

    1 Your locale? 2 Previous oil use amount? ...

    1
    Your locale?

    2
    Previous oil use amount?

    3
    What will be the thermal balance point?

    4
  7. Model 225B Properly installed I would select...

    Model 225B
    Properly installed
    I would select a series that is Not builder grade for a few 100$ more.

    https://www.acca.org/standards/quality

    "Word-of-mouth" / Family/ Friends/ Neighbors ...
  8. Replies
    13
    Views
    266

    You won't have low humidity which is comfortable...

    You won't have low humidity which is comfortable (< 48%),
    unless the temperature split is > 20'F.

    At < 48% relative humidity, 76' - 78'F will feel very good.
  9. Replies
    12
    Views
    272

    ......... Winter Heating Cost Heat Pump. $340 _...

    ......... Winter Heating Cost
    Heat Pump. $340 _ at $0.085 / KW-HR .. 16 SEER 2-Ton
    Furnace .... $689 _ at $1.20 /Therm @ 80% 574 THERMS PER YEAR may be a minor overestimate
    Furnace .... $574 __...
  10. Replies
    7
    Views
    211

    1979.53 / 3.412 = 580 WATTS IF the TOTAL...

    1979.53 / 3.412 = 580 WATTS


    IF the TOTAL Power consumption IS Actually 100% HEAT, then NO Work is done by the Dehumidifier.
    .. NOW, That's REALLY A P.O.S. ...
  11. Replies
    6
    Views
    270

    ... a town house/condo, with 3 floors, 2300 sq...

    ... a town house/condo, with 3 floors, 2300 sq ft. ...
    Heat loss is likely < 35,000 BTU/Hr, so Why a 70,000 unit?

    IF the duct work is Not even sufficient for Heating,
    the Cooling does Not have...
  12. Request a written note on Superheat and Subcool. ...

    Request a written note on Superheat and Subcool.

    If not received, the only simple solution is to CALL a REAL Mechanical contractor.
  13. Replies
    7
    Views
    211

    Apparently, they don't wish for you to know the...

    Apparently, they don't wish for you to know the heat addition.

    http://ultra-aire.com/pdf/Ultra-Aire_70H_Spec_Sheet.pdf

    http://www.ultra-aire.com/pdf/Ultra-Aire_70H_Manual.pdf

    Current draw...
  14. CA as a _Specific Location_ only gets one's ...

    CA as a _Specific Location_ only gets one's locale
    within about 800 miles
    and 5 climate zones.
    ...
  15. CA as a _Specific Location_ only gets one's ...

    CA as a _Specific Location_ only gets one's locale
    within about 800 miles
    and 5 climate zones.

    https://energycode.pnl.gov/EnergyCodeReqs/?state=California

    Age of house ?

    ...
  16. A 3-ton system is certainly reasonable for a heat...

    A 3-ton system is certainly reasonable for a heat pump.

    Heating requirement would probably be ~ 30,200 BTU/HR at 20'F / dT 50'F.

    Balance Point could be in the range of 26'F for a SINGLE STORY...
  17. A 3-ton system is certainly reasonable for a heat...

    A 3-ton system is certainly reasonable for a heat pump.

    Heating requirement would probably be ~ 28,000 BTU/HR at 20'F / dT 50'F.

    Balance Point could be in the range of 24'F for a 1,900 Sq foot...
  18. MUSCLE SHOALS REGIONAL AP 34.75'N 87.61'W ...

    MUSCLE SHOALS REGIONAL AP
    34.75'N 87.61'W

    Heating Degree Days
    3084

    Cooling Degree Days
    1822

    561' Elevation
  19. MAGNIFICIENT HUNTSVILLE INTL/JONES FIELD ...

    MAGNIFICIENT

    HUNTSVILLE INTL/JONES FIELD
    34.64'N 86.79'W
    643' Elevation

    ASHRAE
    99.6%./ 99.0%
    17.0'F /21.6'F ___ 88 hours per year < 22'F
    35 hours per year < 17'F
  20. http://www.honeywellcleanair.com/air-purifiers/sea...

    http://www.honeywellcleanair.com/air-purifiers/search/results/
  21. Location ________ , S.C. The Mountains and...

    Location
    ________ , S.C.

    The Mountains and the Beach are different environments.

    GSP has 50% more Heating Degree Days than the coast.

    The coast has 50% more Cooling Degree Days than GSP.
  22. Integrated and versatile designs needed

    ZONING should have multi-speed or at least two-stage (> 16 SEER) equipment.

    Measure the existing air flow rate at the Return Air filters.

    I would investigate 3-ton Heat Pump for S.C. ...
  23. Replies
    2
    Views
    223

    PERFORMANCE RELATED SIZING How Much Oil and...

    PERFORMANCE RELATED SIZING
    How Much Oil and Electricity have you used for Each of the last 33 months?

    HOUSE RELATED SIZING
    Send me the original design specs.
    Window Schedule and Blower Door...
  24. Alternate .. Carrier Greenspeed / Bryant...

    Alternate ..
    Carrier Greenspeed / Bryant Extreme ( equivalent)

    You're 'between a rock and a hard place' with those energy rate$.
  25. LOGIC PREVAILS. WHAT A RARITY.!

    LOGIC PREVAILS.

    WHAT A RARITY.!
  26. Replies
    12
    Views
    411

    Probably upto 20% for a 2-story in some regions....

    Probably upto 20% for a 2-story in some regions.

    Some day designers/ architects may actually get smart enough
    to be logical
    and develop a space on the first floor for "an equipment area".
    ...
  27. Replies
    16
    Views
    515

    Even Builder grade should last much longer ...

    Even Builder grade should last much longer
    than 7 years in the North.

    With an Open floor plan, it is difficult to
    say what size may be most appropriate.
  28. For starters, Pay my $12,000 Annual retainer...

    For starters,

    Pay my $12,000 Annual retainer fee
    just so I don't have to worry about payment delays.
    ...
  29. YOU are definitely a rationale, reasonable,...

    YOU are definitely a rationale, reasonable, common sense person.!

    I appreciate your Self-Study on this selection.
  30. One might anticipate up to 16 Supply Air vents {...

    One might anticipate up to 16 Supply Air vents { diffusers} for a 5-ton unit.

    ~ 16 [ Sixteen] is A LOT MORE than ' only a few supplies '.
  31. Now you have somewhat calibrated whether the unit...

    Now you have somewhat calibrated whether the unit is not performing close to rated capacity.
    Air exiting above condenser fan should be >10'F warmer than Outside Air temperature.

    15'F split still...
  32. I IMMEDIATELY UNDERSTAND what he meant by '...

    I IMMEDIATELY UNDERSTAND
    what he meant by ' being so slow'.
    ............... He doesn't understand what he's doing, is not honest and will likely tell you anything.
    ... He doesn't want a...
  33. SE LOCATION ?... SC, GA, ... I understand that...

    SE LOCATION ?... SC, GA,
    ... I understand that the Design Temperature is 20'F.

    ____ Western NC ...14'F

    ASHRAE Fundamentals 2009 ...
    _____________ 99.6% means temperature is only <...
  34. Replies
    13
    Views
    615

    ASHRAE 2009 Edition BOSTON LOGAN INT'L ARPT ...

    ASHRAE 2009 Edition

    BOSTON
    LOGAN INT'L ARPT
    42.36'N 71.01'W
    30 foot elevation

    99.6%/ 99.0%
    7.4'F /12.4'F
  35. Replies
    13
    Views
    615

    2-TON A/C Unit with 40,000 btu/hr FURNACE IS MORE...

    2-TON A/C Unit with 40,000 btu/hr FURNACE IS MORE THAN ADEQUATE
    for a 30 YEAR Old, 2-story 1,240 Square Foot townhouse in MA.

    ATTACHMENT -CALC
    $633.27 WINTER _ 5,800 HEATING DEGREE DAYS with...
  36. A 3-ton unit at 105'F Outside temperature will...

    A 3-ton unit at 105'F Outside temperature will provide about 2.6tons / 31,000 BTU/HR.
    Contractors will NOT guarantee a 75'F inside temperature at THE 100'F Design Temperature.

    Orientation of...
  37. __________________ NO Heat strips are added...

    __________________ NO

    Heat strips are added for Auxiliary use when it's < ~ 26'F outside.
    ......................................... BALANCE POINT FOR YOUR HOUSE WITH 3-TON

    Heat strips are...
  38. Replies
    7
    Views
    393

    NOT VERY MUCH HOTTER ... ________________...

    NOT VERY MUCH HOTTER ...
    ________________ because if it gets hotter than outside,
    _____________________ you're going to open the windows.

    If you wish to go by a W.A.G. ... ~10'F
  39. Duct work location and amount ? House age?

    DUCT WORK IN A 140'F ATTIC is a very Large load.
    .............................................___ :eek2:
    I don't know the amount of ductwork
    or if it's actually IN the attic.

    A 3-ton should...
  40. Location __________ Age of house ___ 1 or 2...

    Location __________
    Age of house ___
    1 or 2 story ?

    R- __ Ceiling
    R- __ Walls

    Windows - U Value ___ Double Pane ?
    ............. SHGC __ Tinted ?
  41. If it's 97'F outside or so, it might run for 7...

    If it's 97'F outside or so, it might run for 7 hours continuously (Noon to 7 pm).

    IF it's a two stage system, it may run till midnight.
  42. Replies
    30
    Views
    1,074

    Post a photo of the Condenser ( outdoor unit)...

    Post a photo of the Condenser ( outdoor unit) nameplate
  43. I wonder if there is a Spider Web of flexible...

    I wonder if there is a
    Spider Web of flexible ductwork in a 140'F attic
    where 35% of the cooling capacity is lost to the outside.

    Pleated filter can not be more than MERV 8 (Filtrete 600)
    ...
  44. Thread: Cheese Boxes

    by dan sw fl
    Replies
    7
    Views
    328

    CHEESE BOXES SHALL ONLY BE USED FOR _STORING...

    CHEESE BOXES SHALL ONLY BE USED FOR _STORING CHEESE_.!
    ......................................................_______ :cheers: _______
  45. Replies
    51
    Views
    2,002

    ---------- NO __ NO __ NO --------------....

    ---------- NO __ NO __ NO --------------.
    ______________ .. :beat: .. ____________
    A/C Systems are not designed to provide CoolAir OUTSIDE.!
  46. Thread: Cheese Boxes

    by dan sw fl
    Replies
    7
    Views
    328

    When the engineer comes out, he'll probably tell...

    When the engineer comes out, he'll probably tell you that
    the system IS Underperforming by AT LEAST 35%.
  47. Replies
    6
    Views
    298

    Even an OLD 1500 Sq Foot residence should have...

    Even an OLD 1500 Sq Foot residence should have heat loss of < 40,000 BTU/HR at 6'F.

    Age of house __ 10 or 120
    _________can be used ot estimate infiltration

    Two story ?
    R- __ ceiling _ 15...
  48. Thread: Cost?

    by dan sw fl
    Replies
    5
    Views
    272

    ... $34,567.89 .+_ $6,789.87 for WINDOWS

    ... $34,567.89
    .+_ $6,789.87 for WINDOWS
  49. Attachment in Post # 3 $0.115 / kw-hr $ 1.16...

    Attachment in Post # 3

    $0.115 / kw-hr
    $ 1.16 / therm Natural Gas

    Source: EIA data

    With a high efficiency (> 16 SEER) heat pump, the heat pump
    operating cost should be slightly less...
  50. Sizing & Operating Cost for VA

    EXAMPLE

    2,000 SQUARE FOOT RESIDENCE with
    R-48 Ceiling
    R-18 Walls
    260 Square feet of Windows with U < 0.33 & SHGC 0.5
    __ Infiltration < 0.3 Air Change per Hour (ACH)
    __ requires one...
Results 1 to 50 of 1000
Page 1 of 20 1 2 3 4

Related Forums

Plumbing Talks | Contractor MagazineThe place where Electrical professionals meet.
Quality Home Comfort Awards