A common blow-dryer (1875w), which costs about $20, can be a useful tool on winter job sites. I’m not talking about preventing bad-hair days, but providing an instant source of forced hot air.
Placed under a tent of plastic or plywood, a blow-dryer can keep a considerable area of fresh concrete or stonework frost-free. Or if your crew is standing around a mixer or dozer that won’t start, a minute or two with the dryer can zap the moisture off the engine and get everybody back to work.
Bob Ritchie, Timonium, MD
Edited and Illustrated by Charles Miller
From Fine Homebuilding #153
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Interestingly, heat guns and blow dryers generally pull similar power, 1500-1800 watts. What changes is the air flow- less air, higher temp; more air, lower temp. Many professional heat guns, like a Gundlach, vary the temp by varying the flow.