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  1. $avings $600+ /year conservatively due to less...

    $avings $600+ /year conservatively
    due to less use of heat strips
    would be in the ball park of 5-Year R.O.I.

    Use of heat strips with a 3-ton heat pump would be ~43% of the heating electric...
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    Comment: WRONG FORUM.

    Comment: WRONG FORUM.
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    Blower Door and Duct Blaster tests will indicate...

    Blower Door and Duct Blaster tests will indicate any air sealing issues.

    http://www.infiltec.com/inf-btst.htm
    ...
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    I wonder if a 3 ton unit is adequate.

    I wonder if a 3 ton unit is adequate.
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    Registers (12x4) 6x – 2nd floor ...

    Registers (12x4)
    6x – 2nd floor ..................... 5x - 1st floor

    Air return
    1x – 2nd floor hallway (32x8) ........ 1x – 1st floor ceiling (32x16)

    Apparently,
    Upstairs should...
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    I simply used 14,000 as the mass Heat Capacity [...

    I simply used 14,000 as the mass Heat Capacity [ heat content] example here
    because one may typically find that systems may only be
    capable of heating up a residence from a set-back is
    frequently...
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    The primary reasons to select an appropriate...

    The primary reasons to select an appropriate sized furnace or heat pump
    are to maintain a constant temperature with longer run times
    and less noise with variable speed blowers.

    503.1 is the...
  8. Bounding Heat Loss Values

    There is NOTHING that can be described as "on-target" for a 90's year old brick house
    where the characteristics of Thermal Building Envelope are going to be guessed at.

    Did you have thermography...
  9. https://archive.org/stream/MuellerClimatrol#page/n...

    https://archive.org/stream/MuellerClimatrol#page/n6/mode/1up
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    Payne and many furnaces near 60,000 BTU/HR will...

    Payne and many furnaces near 60,000 BTU/HR will have ~1,000 CFM
    [ ... ... ... ... ... ... .. ... ...... 120,000 BTU/Hr will have ~2,000 CFM]

    .:. Same/similar ..

    1
    Furnace with 70,000 BTU/HR...
  11. WHAT ARE YOUR MONTHLY HEATING BILLS for the...

    WHAT ARE YOUR MONTHLY HEATING BILLS
    for the last 18 months?
    .................. :eek2: ...............
  12. Replies
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    Those mis-leading statements (a.k.a. B.S.) are...

    Those mis-leading statements (a.k.a. B.S.) are certainly not anywhere close to justifications.!..!!...!!!....!!!!

    1
    Furnace with 70,000 BTU/HR rating would have a blower
    and duct system...
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    831

    Heat Pump 16 { 18} SEER operating cost for...

    Heat Pump 16 { 18} SEER operating cost for electric is > 30% { 35%} _ L E S S _ than Natural Gas
    at the rates that you stated.
    $0.106 /Kw-Hr
    $1.31 / Therm
    ...
  14. Based on information provided and the attached...

    Based on information provided and the attached calculation, the selection of a 3-ton heat pump is appropriate.

    Heat pump balance point would be about 27'F
    If other words, Auxiliary Heat (heat...
  15. H.S.P.F. C.O.P. ...

    H.S.P.F.

    C.O.P.

    http://www.engineeringtoolbox.com/heat-pump-efficiency-ratings-d_1117.html
  16. A tool for some "What IFs" for you. ...

    A tool for some "What IFs" for you.

    http://www.lennox.com/solar-solutions/solar-calculator.asp
  17. What is your current monthly Natural Gas usage...

    What is your current monthly Natural Gas usage using the 80% efficient furnace?

    I might be investigating a 4-Ton, variable speed Heat Pump.

    How old is your residence?
    Any significant...
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    Given 550 Annual Therms, your Heat Loss is REALLY...

    Given 550 Annual Therms, your Heat Loss is REALLY LOW.!
    Probably < 22,000 at 27'F

    I would DEFINITELY be investigating a 17 or 18 SEER/ 9.5 + HSPF heat pump.
    Is the Seattle natural gas rate...
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    26,000 BTU/Hr at 24'F seems Accurate for 1,800...

    26,000 BTU/Hr at 24'F seems Accurate for 1,800 Sq. Feet/ 1987 Built

    Infiltration [Fresh Air] may be underestimated.
    I would use 100 CFM or more / 0.4 Air Change per Hour (A.C.H.)

    Floor (...
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    You need a detailed Duct System design that the...

    You need a detailed Duct System design that the contractor must follow.

    Hopefully, you will have the ACCA Manual J & D analysis and design performed prior to permitting.

    _ Adhering to 2012...
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    What are the Monthly gas usage (therms) for the...

    What are the Monthly gas usage (therms) for the 12 to 24 months?
    Correlation of this actual heat loss could be investigated in a calculation to affirm the conclusions below.

    Based on somewhat...
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    26,900 BTU/HR Heat Loss at 7'F 1. No. 2. Good...

    26,900 BTU/HR Heat Loss at 7'F

    1. No.
    2. Good target: 18 SEER/ 9.5 HSPF
    3. Use a real two zone, one 3-ton modulating or 2-stage Heat Pump system
    4. ___
    5. ___

    Furnace not really needed...
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    1. Normal, Yes for 11 A, 14 Amp running is Too...

    1. Normal, Yes for 11 A, 14 Amp running is Too High.
    Efficiency of Small ( < 2 HP) motors is Quite LOW.

    Motor Efficiency= 78%
    Power Factor .. ~70%
    11 Amps running
    14 FLA
    ...
  24. Use 2 Stage

    4-ton, 2 stage System could be set-up with 1,400 CFM (350 CFM/ Ton)
    4-TON on FIRST STAGE would operate close to a 2.8 Ton (24,800 BTU/HR sensible) capacity.
    ... ... ... I don't feel that proposed...
  25. Attachments ACCA MANUAL J 8ae Form 1Jae -...

    Attachments
    ACCA MANUAL J 8ae

    Form 1Jae - Input
    Summary -Heat Gain and Loss Loads
  26. What did PPL state when you discussed it With...

    What did PPL state
    when you discussed it With Them?
  27. What is the Relative Humidity? Who is the...

    What is the Relative Humidity?

    Who is the manufacturer and
    _________ what is the model number of the hygrometer?

    How old is the hygrometer?
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    It Mainly depends whether you live at 22' or 52'...

    It Mainly depends whether you live at 22' or 52' N Latitude or perhaps in-between.
    I'm going to guess that you may be near 40' latitude.

    Not knowing a location within 2,000 miles makes it Very...
  29. ENERGY COST AND HEAT GIAN & LOSS CALC IS ATTACHED

    30,600 BTU/HR Sensible Heat Gain at 92'F Outside Air with 75'F inside

    49,200 BTU/HR Heat Loss at 8'F

    CURRENT
    3-Ton _Heat Balance Point = 34'F
    39% of load is provided by heat strips
    ______...
  30. attaching calc

    I am having difficulty attaching a calc in PDF format.
  31. 4-ton High efficiency (> 18SEER /~10 H.S.P.F.)...

    4-ton High efficiency (> 18SEER /~10 H.S.P.F.) heat pump is needed to reduce electric usage by 7000 kw-hr/$700 per year
    Electric cost for Heating of ~$2,200 MIGHT BE REDUCED TO $1,500.
    ...
  32. It's difficult to determine the electric usage...

    It's difficult to determine the electric usage for the
    Heating and Cooling Seasons
    versus the Other loads.

    I judge the load ratios are about:
    48.2%__ $2,266__ Heating_ 5.5 Months
    18.1%__ ...
  33. http://gothermalstar.com/resources/ConvertingBetwe...

    http://gothermalstar.com/resources/ConvertingBetweenCFMAndNaturalFlow-GreenSheet.pdf

    4200 CFM50 =

    22 *.81 = 17.8

    4200 /17.8 =~ 235 CFM

    Natural Infiltration is in the ball park of 235 CFM...
  34. NO. You are in a _Predominantly HEATING Climate_...

    NO.
    You are in a _Predominantly HEATING Climate_
    so equipment selection process needs to concentrate on Those Requirements.

    A "60-second evaluation" for 2,800 sq feet 1983 built residence in...
  35. What is the trend (or list actual for the last 36...

    What is the trend (or list actual for the last 36 months) of Monthly electric bills over last 2 to 3 years ?

    Do you think that R-9 is a good estimate for the walls?
    That's what I would use for a...
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    1.5 ton ought to be able to cool from 135'F to...

    1.5 ton ought to be able to cool from 135'F to 70'F.

    Are you in the Dessert?
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    Mechanical Rooms

    How are the Mechanical Equipment Rooms integrated With the house and duct design?

    I presume ALL Plumbing, HVAC design and analysis aspects will be addressed Several Months
    prior to permitting.
    ...
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    Sizing 1st -Duct design 2nd

    Ranch or 2-story __ 3,060
    Use 2012 IECC
    Frame 133
    https://law.resource.org/pub/us/code/ibr/icc.iecc.2012.pdf

    # of windows (or Glass sq feet total) facing each direction?
    i.e.
    N __ 70 Sq....
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    https://www.energycodes.gov/adoption/states/pennsy...

    https://www.energycodes.gov/adoption/states/pennsylvania

    PA equipment sizing requirements for Replacements?..??

    FLORIDA ...
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    I am confident that You have Not REALLY started ...

    I am confident that You have Not REALLY started
    getting Any Reasonable Estimate(s).

    ANY HVAC bid on a 1,200 square foot area that is
    greater than 80,000 BTU/HR
    is absolutely ludicrous.
    (>...
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    60,000 BTU/HR 2-stage Furnace is a little ...

    60,000 BTU/HR 2-stage Furnace is a little
    _______ OVERSIZED _____
    for two 600 square foot floor areas
    in Allentown - Scranton PA region.
  42. Replies
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    Expected Run Time on 60K 2 stage Furnace

    60,000 BTU/HR Furnace is MORE THAN ADEQUATE for heating 2 floors
    2-stage is needed to enhance Comfort

    Comfort - steady room temperature
    ........... is achieved with longer run times

    FIRST...
  43. Replies
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    HEAT LOSS - 2 FLOORS - 600 SQ FT EACH in NE PA

    I understand with the parameters and calc given in the Attachment
    that 33,400 BTU/Hr at 7'F is sufficient
    based on use of ~ 770 gallons per year
    and 6,300 HEATING DEGREE DAYS

    ATTACHMENT
    ...
  44. Replies
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    They probably don't make a gas furnace _small...

    They probably don't make a gas furnace _small enough_ for your two floors.

    Age of house ?
    # of windows?

    Double pane?
    Is U-value < 0.5?

    Infiltration? (guesstimate to be provided based on...
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    The questions are a basis to determine the actual...

    The questions are a basis to determine the actual reply to "giving me a line".
    The three simple questions are for a contract firm to reply to
    so that you'll know whether a new system will last 2...
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    What's the amount of leakage in the duct system?...

    What's the amount of leakage in the duct system?

    What is the supply side pressure?

    What is the return side pressure?

    If you don't know, you don't know where you are.
    If you don't KNOW where...
  47. Thread: Heat Pump

    by dan sw fl
    Replies
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    547

    REMINDER -IF That DOESN'T Work,YOUR Next Option...

    REMINDER -IF That DOESN'T Work,YOUR Next Option may be
    __________ DIAL 911 & REQUEST FIRE DEPT
  48. Thread: Heat Pump

    by dan sw fl
    Replies
    14
    Views
    547

    USE THIS.! ..................

    USE THIS.!
    ...............
    http://en.wikipedia.org/wiki/Circuit_breaker

    ...................
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    Supply Air is > 90% Relative Humidity What...

    Supply Air is > 90% Relative Humidity

    What are the chances of mold?
    ... would be higher than normal if this older residence has significant infiltration.

    Are windows < 20 years old?
    ...
  50. Replies
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    It appears to be somewhat low based on other...

    It appears to be somewhat low based on other responses in the thread.

    The data provided is simply:
    The 'undisturbed ' / natural ground temperature can only provide ~ 48'F in lower Michigan...
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