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HEATING LOAD FORM
FRIEDRICH ROOM UNIT HEAT PUMPS
BTU/HR PER
WALLS: ECNEREFFID .PMET F° )teeF raeniL(
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
01.0 x .tF .qS detalusni ”2( fooR pu-tliuB
02.0 x .tF .q
S )detalusni ”2/1( fooR pu-tliuB
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
00.1 x .tF .niL noitalusni retemireP ”1
* 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.