Cooling systems... need only supply a drop of from 10 to 20 degrees below that of the outside temperature.... greater cooling differentials... are a real injury to health.


The Owner Built Home: A How-to-do-it Book (1972)


Cooling systems... need only supply a drop of from 10 to 20 degrees below that of the outside temperature.... greater cooling differentials... are a...

Cooling systems... need only supply a drop of from 10 to 20 degrees below that of the outside temperature.... greater cooling differentials... are a...

Cooling systems... need only supply a drop of from 10 to 20 degrees below that of the outside temperature.... greater cooling differentials... are a...

Cooling systems... need only supply a drop of from 10 to 20 degrees below that of the outside temperature.... greater cooling differentials... are a...