A/C Sizing Chart

Air conditioning, fans, and anything related to keeping it cool, such as insulation. This would include any posts generally discussing how to keep it cool, such as which types of blocks are better insulators.... ideal wall thickness for keeping an A/C house cool, etc.

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Re: A/C Sizing Chart

Postby Roger Ramjet » Thu Nov 30, 2017 5:34 pm

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Roger Ramjet
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Re: A/C Sizing Chart

Postby Klondyke » Thu Nov 30, 2017 7:20 pm

Cheeryble wrote:I have two old aircons in one living area.
One i may replace the other works well and acceptable noise wise.
I looked for the BTU of the good one to help me size any new unit (cant find a data plate on dud one and want to decide total BTU myself anyway.......it's an area which receives no sun......but it only has 1/15 HP on the data plate.

I google and see a HP should be x 2545 to get BTU.
One fifteenth of 2545 is obviously wrong.

What's up?

The 1/15 HP obviously says something about the power of the fan motor, not the cooling energy as the BTU is for.
In that case it would give 1/15 x 750 = 50 W.
If it is true, the unit is not really much so powerful, but sufficent enough for your pourpose. And if the room is not directly exposed to sun, you can buy a cheap 9,000 BTU, it should be enough and not very difficult for your main power supply incomer.
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