To get email notification when someone adds to a thread you're following, click on the star in the thread's header and it will turn yellow; click again to turn it off. To edit your profile, click on the gear.
The Wall has a powerful search engine that will go all the way back to 2002. Use "quotation marks" around multiple-word searches. RIGHT-CLICK on the results and choose Open Link In New Window so you'll be able to get back to your results. Happy searching!
In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
Formulas for heat-loss calculations
Can anyone confirm any of these formulas for me?
BTU losses = sq. ft. X (1/R) X temperature difference in F
Losses to ceilings are 15% higher due to radiation losses?
BTU losses via infiltration = room volume Cu. Ft. X .018 X temperature difference in F X A
A= .2 for well sealed rooms, ranging to .5 for poorly sealed rooms
0 · ·