Filter
Top Products
TRG-TRC014-EN 43
period three
System Configurations
notes
If the heat loss of the perimeter space is less than 450 Btu/hr per linear foot [430
W per linear meter] of outside wall, downdrafts are less problematic and heated
air supplied through ceiling diffusers can provide a satisfactory solution.
Again, the rate of heat loss is used to determine the proper diffuser location. If
the heat loss is between 250 and 450 Btu/hr per linear foot [240 and 430 W per
linear meter] of outside wall, diffusers should discharge directly downward and
blanket the perimeter walls with heated air.
If the heat loss is less than 250 Btu/hr per linear foot [240 W per linear meter] of
outside wall, diffusers can be located in the center of the room and still provide
adequate blanketing to handle the heat loss.
Overhead Supply Perimeter Heating
diffusers blanket
diffusers blanket
perimeter wall
perimeter wall
250
250
-
-
450 Btu/hr/ft
450 Btu/hr/ft
[240
[240
-
-
430 W/m]
430 W/m]
diffusers in
diffusers in
center of space
center of space
< 250 Btu/hr/ft
< 250 Btu/hr/ft
[430 W/m]
[430 W/m]
Figure 59