Calculating heat loses.

[dhot]

i am having a hard time calculating the heat loses for a building.

Building 18' x 18'Plain concrete block on a concrete slab (4" assuming). (Footer will be larger.) No windows. a 36 sf steel door. All vents equal a 46 sf. the roof is asphalt shinged hip style roof, 10' walls. Temp In = 65 F and Temp out = -5 F.

Can anyone help point me in the right direction? I have a book with Qt = Qtr + Qinf + Qvent. I have worked with this clculation but am not confident with answers.

 

[davefitz]

try the book " ashrae fundamentals" before they switched to all computer predictions, circa 2001.

 

[corwil]

Are you still looking for an answer?

 

[imok2]

I get 11,751 watts useing software