What r ya doin to beat the heat?

Year before last the air handler in my attic went out in the middle of July. The upstairs temperatures were well over 100 degrees for days. Fortunately we have a separate unit downstairs. I had an HVAC company come in to replace it. The guys worked in 15 minute shifts up in the attic where it must have been 150 degrees... Don't know how they did it!