HEATING LOAD FORM
FRIEDRICH ROOM UNIT HEAT PUMPS
WALLS: (Linear Feet) | BTU/HR PER |
°F TEMP. DIFFERENCE | |
2” Insulation | Lin. Ft. x 1.6 |
Average | Lin. Ft. x 2.6 |
WINDOWS & DOORS (Area, sq. ft.) |
|
Single Glass: | Sq. Ft. x 1.13 |
Double Glass: | Sq. Ft. x 0.61 |
INFILTRATION - WINDOWS & DOORS: AVG. | Lin. Ft. x 1.0 |
Loose | Lin. Ft. x 2.0 |
CEILING: (Area, Sq. Ft.) |
|
Insulated (6”) | Sq. Ft. x 0.07 |
Insulated (2”) | Sq. Ft. x 0.10 |
Sq. Ft. x 0.10 | |
Sq. Ft. x 0.20 | |
No Insulation | Sq. Ft. x 0.33 |
FLOOR: (Area, Sq. Ft.) |
|
Above Vented Crawl space |
|
Insulated (1:) | Sq. Ft. x 0.20 |
Uninsulated | Sq. Ft. x 0.50 |
* Slab on Ground | Lin. Ft. x 1.70 |
1” Perimeter insulation | Lin. Ft. x 1.00 |
* Based on Linear Feet of outside wall | TOTAL HEAT LOSS PER °F BTU/HR/°F |
Multiply total BTU/HR/°F X 30 and plot on the graph below at 40°F. Draw a straight line from the 70 base point thru the point plotted at 40°F. The intersection of this heat loss line with the unit capacity line represents the winter design heating load.
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