Heating airplane hangars and shops or warehouses with floor radiant has gained popularity in the last twenty years for several reasons, it is the most efficient, productive and safest method available. If you try to heat buildings with large overhead doors by heating the air you lose all the heat every time the doors are opened. With a heated floor not only is the space warm as soon as the doors are closed but the area is even warm with the doors open. We have heated very large shops as far north as Fairbanks Alaska with very positive results.
This example is 5000 sq. ft., it requires a 150,000 Btu. heater, a high head pump and 5,000 feet of 1/2" Pex tubing.
DO NOT USE OVER 500' IN ONE LOOP
INSTALL THE FURTHERMOST LOOP OF TUBING FROM MANIFOLD FIRST
6 MIL VISQUEEN VAPOR BARRIER
THROUGHOUT SLAB AREA.
LAP SEAMS 12" MIN.
BE SURE TO LEAVE ENOUGH TUBING TO GO FROM AND TO THE MANIFOLD.
DO NOT GO OVER 500 FEET IN ONE LOOP
WARNING! NOT TO SCALE
The area represented with each loop is the actual area for the loop
but there is not room on the 8 1/2" by 11" papers to represent the loops.