HEAT GAIN AND LOSS SHORT FORM

Free Load Calculator by Mr. HVAC
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STEP 1: Customer Information
Name Phone
Address City
State Zip
Job

STEP 2: Design Temperatures
  Inside Outside
Winter Deg F Deg F
Summer Deg F Deg F

STEP 3: Construction Details
Gross Wall
SqFt
Ceiling
SqFt
Floor
SqFt
Infiltration Vol Cu Ft  Fireplaces 
Duct Gain/Loss
PEOPLE (Assume two persons per bedroom)
APPLIANCES

STEP 4: Additional Items
BTUH Loss Heating Factor Description Cooling Factor BTUH Gain
1.
2.
STEP 5: 
HEATING: DOORS & WINDOWS (per 10 deg F)
For sliding glass doors - use factors for the same type window
Window & Door Types Frames Area BTUH
Loss
1) Single Pane Clear
2) Single Pane With Storm
3) Double Pane Clear
4) Double Pane With Storm
5) Triple Pane Clear
6) Jalousie Single
7) Jalousie Single w/storm
8) Skylights Single
9) Skylights Double
10) Door Wood Only
11) Door Wood w/Storm
12) Door Urethane Core (R-5)
13) Door Urethane Core (R-5)w/Storm
TOTALS

STEP 6: 
COOLING: DOORS & WINDOWS (per 10 deg F)
Table assumes windows have inside shading by draperies or
Venetian blinds and sliding glass doors are treated as windows
Direction Panes Temp
Diff		 Area BTUH
Gain
1) N
2) NE & NW
3) E & W
4) SE & SW
5) S
6) Skylights
7) Wood Door
8) Metal Door
TOTALS


STEP 7:

WE CANNOT PROVIDE TECHNICAL SUPPORT FOR THIS FREE UTILITY.

If you require support or need more power, we have our own fantastic heat gain and loss program called Easy Load Calc. It is inexpensive (for now) but contains all of the features most of us need. Please check it out here.

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