Boilers - Home Heating Steam and Hot Water Systems - Heat-Loss Calculation - assumptions
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gilmorrie
10-30-08, 07:56 AM
I'm doing a heat-loss calculation using the Slant/Fin program. I'm using 70 deg for the indoor temp and -10 deg for the outdoor design temp.
We live in northern Illinois. The extreme min temp is around -20, but in any given year, there will only be a few times that it gets as low as -15.
So, does -10 seem reasonable for the outdoor design temp?
Doug
We live in northern Illinois. The extreme min temp is around -20, but in any given year, there will only be a few times that it gets as low as -15.
So, does -10 seem reasonable for the outdoor design temp?
Doug
rbeck
10-30-08, 04:40 PM
Check this link
http://www.comfort-calc.net/outdoor_design_temps.html
http://www.comfort-calc.net/outdoor_design_temps.html