What is the heat gain (in Watts) produced by an overhead screen projector in a typical school classroom?
I am calculating the internal heat gains for appliances used in a school classroom. I can’t find information on the heat produced by projectors.
First, look at the wattage of the lamp. This should be in the manufacurers specs. Then add 50% of that to account for the fan, interface etc.
Rule of thumb.
Pentagon US Heat-Ray Projector