EcoRenovator - View Single Post - Portable Ac with heat single hose for winter heating ?

ecomodded · 10-10-17, 11:22 AM

Might of figured out how to identify the Btu gains

The Btu gain conversion calls for the Fan CFM x 1.1 x difference in inlet vs outlet temperatures.
Using the hot side temps to measure gains seems to work

Room temp of 75f minus by the Hot side of 115f = 40*f gain

Fan 240cfm x 1.1 =264 x gain of 40f =10,560 Btu

The unit is rated to make 11,000 btu

If the hot side in/out numbers are used as the the inlet /outlet temp the math works.

Using the cold intake temp of 44f vs the 115f hot outlet with the above math shows a 19,800 Btu gain. I doubt that right.

The only numbers left are the cold sides in/out of 44*f in / 14 out with a 240CFM fan that math shows a 7920 Btu gain which is closer to the hot sides result

10-10-17, 11:22 AM	#63
ecomodded Supreme EcoRenovator Join Date: Sep 2012 Location: Vancouver Island,Canada. Posts: 1,037 Thanks: 116 Thanked 100 Times in 87 Posts	Might of figured out how to identify the Btu gains The Btu gain conversion calls for the Fan CFM x 1.1 x difference in inlet vs outlet temperatures. Using the hot side temps to measure gains seems to work Room temp of 75f minus by the Hot side of 115f = 40f gain Fan 240cfm x 1.1 =264 x gain of 40f =10,560 Btu The unit is rated to make 11,000 btu If the hot side in/out numbers are used as the the inlet /outlet temp the math works. Using the cold intake temp of 44f vs the 115f hot outlet with the above math shows a 19,800 Btu gain. I doubt that right. The only numbers left are the cold sides in/out of 44f in / 14 out with a 240CFM fan that math shows a 7920 Btu gain which is closer to the hot sides result __________________ To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Last edited by ecomodded; 10-10-17 at 11:55 AM..