Sawmill House

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The Sawmill House

Unless noted otherwise, the following parameters are used as the base calculations -

Weather parameters -

Annual climate          9387.0 Degree days

With the following monthly distribution -

Jan         1316.0 Degree days
Feb         1119.0 Degree days
Mar         1109.0 Degree days
Apr          870.0 Degree days
May          667.0 Degree days
Jun          358.0 Degree days
Jul          194.0 Degree days
Aug          241.0 Degree days
Sep          463.0 Degree days
Oct          765.0 Degree days
Nov         1040.0 Degree days
Dec         1245.0 Degree days

Wind speed              0.0 miles/hour (Not the usual 10 miles/hour)

The ground temperature is 42.6 degrees (Fahrenheit) as measured in the water temperature from a 300 foot deep well.

The following base building parameters are used -

Ceiling/R-value                     60.00 (F*Hr*Ft**2)/BTU
Door/Frame/R-value/East              6.25 (F*Hr*Ft**2)/BTU
Door/Frame/R-value/North             6.25 (F*Hr*Ft**2)/BTU
Door/Frame/R-value/South             5.50 (F*Hr*Ft**2)/BTU
Door/Storm/+R-value/North            7.00 (F*Hr*Ft**2)/BTU
Door/Storm/+R-value/South            7.00 (F*Hr*Ft**2)/BTU
Floor/R-value                       23.00 (F*Hr*Ft**2)/BTU
Heating System Rating               40000 BTU/Hour Input
Infiltration                         0.16 ACH, Fr(Vol/Hr)
Sky Clearness                        1.10 Fr(Trans)
Specific Heat/Air                    0.02 Btu/(Ft**3*F)
Temperature/Ceiling                 75.00 Degrees F
Temperature/Degree Day Base         65.00 Degrees F
Temperature/Floor                   69.00 Degrees F
Temperature/Ground                  42.60 Degrees F
Temperature/Indoor                  71.00 Degrees F
Wall/Length/E-W                     48.00 Feet
Wall/Length/N-S                     24.00 Feet
Wall/R-value                        30.00 (F*Hr*Ft**2)/BTU
Wind Speed                           0.00 Miles/hour
Window/Area/East                   0.0154 Fr(Floor)
Window/Area/North                  0.0340 Fr(Floor)
Window/Area/South                  0.0591 Fr(Floor)
Window/Area/West                   0.0180 Fr(Floor)
Window/R-value/+Shades/East          5.00 (F*Hr*Ft**2)/BTU
Window/R-value/+Shades/North         5.00 (F*Hr*Ft**2)/BTU
Window/R-value/+Shades/South         5.00 (F*Hr*Ft**2)/BTU
Window/R-value/+Shades/West          5.00 (F*Hr*Ft**2)/BTU
Window/R-value/Glass/East            9.10 (F*Hr*Ft**2)/BTU
Window/R-value/Glass/North           9.10 (F*Hr*Ft**2)/BTU
Window/R-value/Glass/South           3.00 (F*Hr*Ft**2)/BTU
Window/R-value/Glass/West            9.10 (F*Hr*Ft**2)/BTU
Window/SHGC/East                     0.31 Fr(Transparency)
Window/SHGC/North                    0.31 Fr(Transparency)
Window/SHGC/South                    0.70 Fr(Transparency)
Window/SHGC/West                     0.31 Fr(Transparency)

Notations -

  ACH = Air Changes per Hour
  BTU = British Thermal Unit
  F = Temperature in degrees (Fahrenheit)
  Fr = fraction of ...
  Ft - Feet
  Hr = Hour
  SHGC = Solar Heat Gain Coefficient

Notes - The storm door R-value is an estimate, since the manufacturer does not supply a value.
All calculations, unless otherwise noted, are with the window shades closed during the night.



Updated '8-Aug-2009,11:50:38'