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Hvac rule of thumb

Air conditioner sizing rules of thumb must die. That's what I wrote in my last article. The most common rule of thumb is to use square feet per ton to determine the size of air conditioner needed. Or or or some other number in that general vicinity. In my article, I showed a graph of air conditioner sizes, given in square feet per ton, for 40 homes that we did load calculations for. Now, let me say a bit more about that.
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Air Conditioner Sizing Rules of Thumb Must Die

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HVAC Design Rules of Thumb

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Rules of Thumb for Troubleshooting

Heat generating equipment example computers, copiers, laser printers, big screen TVs etc. Lighting-especially the extensive use of incandescent and metal halide lights. Fluorescent lights are more efficient and burn cooler-however; their ballasts generate a fair amount of heat. Note: The figures above indicative only.
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We design a lot of heating and air conditioning systems at Energy Vanguard. Alexander Bell , who goes by Andy, is our design wizard, and I've been getting involved with the process again lately. When I talk to potential clients, a lot of them tell me their contractor wants to size their air conditioner using a rule of thumb.
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