air conditioning

air conditioning,box fan,cooling,fan
By Unknown
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About 20 percent cooling, and 80 percent extensive, I'd wager.

air conditioning,battery backup system,plywood
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To the untrained eye, this looks like a small window A/C unit propped up on a table, surrounded by three sheets of plywood. To the maintenance department though, this is the solution to prevent catastrophic heat-induced failure to a $20,000 battery backup system.

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