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How to Heat an Auto Body Shop (Page 1 of 2)
What makes auto body shops so difficult to heat during the cold season? To shop owners, the answer is obvious. Auto body shops are characteristically dusty, breezy, high heat-loss environments. To make the indoor air more breathable and safe for workers, fresh air must be introduced through use of exhaust fans and/or raising overhead doors to help dissipate and eliminate contaminants. The problem is, as contaminants are pulled out, so is the heated air. Seemingly a “no win” scenario right?
So whats the most effective and efficient way to heat body shops?
Answer: Infrared radiant tube heaters.
Why Infrared?
To help answer that question, lets review what “infrared” is and how it works.
Infrared (IR) is electromagnetic wave energy that travels at the speed of light until it strikes an object. Upon striking an object, the IR energy converts to heat and is either reflected or absorbed. Dark and opaque objects (i.e. asphalt, concrete, etc.) readily absorb radiant IR heat energy, whereas highly reflective objects such as chrome and polished aluminum are poor absorbers and tend to reflect that energy away.
The most familiar IR emitter (heater) is our own sun. The sun radiates its IR energy through our atmosphere to the earths surface, uninhibited by wind. As the earths surface absorbs that energy, our air becomes warm.
During our North American winters the suns rays are less dense due to the angle of the sun in the sky and our air temperatures are much cooler. But by summer solstice the suns rays are at their peak angle and absorption is at its highest, resulting in warmer air temperatures.
Why use infrared tube heaters for your body shop?
1) Ceiling suspended infrared tube heaters mimic the warmth of the sun by warming up tools, machinery, floors and people directly, thereby warming the air indirectly.
2) Unlike forced air heaters, infrared tube heaters do not blow air throughout the space. Thats a big plus in body shops where dust in painting areas is a problem.
3) Quicker heat recovery. As infrared energy absorbs into floors, tools, vehicles, etc., heat is recovered much more quickly when overhead doors are opened and closed again or when exhaust fans are cycled on and off periodically. Thats because surfaces in the direct path of the infrared rays become a “heat sink”. In other words, stored heat in objects re-radiates to warm the surrounding air.
4) Energy efficiency an infrared tube heating system can save as much as 50% or more in fuel savings compared to conventional forced air. This is especially true in body shops where air exchanges are very high.
5) Infrared heaters can increase production. A carefully designed infrared tube heating system can be used to decrease drying times and enhance paint job quality. Placing vehicles in the path of infrared radiation warms cold metal surfaces. Paint applied to warm metal surfaces is less likely to run or drip than when applied to cold surfaces. And because infrared heaters dont move air around, there is less opportunity for dust particles to mix with newly applied paint.