# Thread: Saturated Suction Temp-REF PLUS BRAND

1. Professional Member
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Feb 2008
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Vancouver, BC
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Originally Posted by 270wsm
Where do they come up with these figures? I come up with something different all together.

1 HP=746 watts
1 watt= 3.413 BTU
1 HP= (3.413 x 746)= 2546 BTU

1/8 HP=318.25 BTU
Don't really know, it was given to us. There are 9 tables, U Values, Transmission Heat Gain Factors, Solar Load, Average Air Changes per 24h, ect ect..

I know the teacher did say something that he didn't agree with the Heat Gain table from Electrical Motors. Your outcome looks more realistic.

BTW: 1 watt = 3.412 BTU's

2. Professional Member
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May 2004
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Originally Posted by Rossco
Don't really know, it was given to us. There are 9 tables, U Values, Transmission Heat Gain Factors, Solar Load, Average Air Changes per 24h, ect ect..

I know the teacher did say something that he didn't agree with the Heat Gain table from Electrical Motors. Your outcome looks more realistic.

BTW: 1 watt = 3.412 BTU's
Actually, it's 3.4129 I just rounded it up.

3. I love math, it never lies. Never. The trick is to get the formula right.

4. Originally Posted by 270wsm
Actually, it's 3.4129 I just rounded it up.
UP? That would have been 3.413.

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Nice they make you guys think that much.

Needed a condenser for data room AC system the other day. All could my guy could say is "need one for two 5 ton compressors". I asked him "what type of compressors"?. He totally couldn't understand why it would matter if they were tin can hermetics or open drive compressors. I didn't even bother with TD and desired SCT.

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