Is there a rule of thumb for how many heating BTUs needed? ... In my area, very
few houses need 30 btu's per sq ft(winter design 8*F). Which is ...
30 - 35 Btu's per square foot, 35 - 40 Btu's per square foot, 40 - 45 Btu's per ... A
general rule of thumb is that if your home is well insulated with newer style ...
Jun 6, 2013 ... The design rules below are intended for informational purposes only. ... Plenum
heaters can be sized using 8 to 10 watts per square foot with 8 foot ceilings ...
2.75 Btu's heat loss per cubic foot for the upper level and 1.75 Btu's ...
Square footage measurement is generally considered a rudimentary ... Square
Foot · Air Conditioner Square Foot Per Ton · Rule of Thumb BTU Per Square Foot
(Rule Of Thumb Shortcut Methods). Cubic Foot Method for Calculating Heat Loss:
⇨ Homes with a basement: Use 2.4 BTU heat loss/cubic foot for the upper ...
A typical value used for air conditioners is one ton (12,000 Btu /hour) per 500
square feet (46 m2). This does not take into account differences ...
But there are also "rule-of-thumb" estimations you can use to pick a furnace size
for ... At 40 to 45 BTUs per square foot, you'd need a 100,000 to 112,500 BTU ...
An easy rule-of-thumb for BTU requirements is to figure that you need about 50
BTU per square foot of interior space in a cold climate; 35 BTU per square foot in
General Rule of Thumb for HVAC heat loads: Residential – 35 Btu's per square
foot; Light Commercial – 45 Btu's per square foot; Commercial – 50 Btu's per ...
Aug 14, 2004 ... Dr-Fix-It! Notebook Archive: A Heating Rule of Thumb. ... Next, multiply your
building's square footage by each of the multiplier factors. ... signify the Btu-per-
hour (Btu/Hr)output range of a furnace for that size and type of house.