FAN,12VDC,4.6CFM,40x40x10,BALL 8 1/2"LDS w/CONN,UL/CSA/VDE/CE

so different here's our different readings that we've taken basically to figure your BTU it is your enthalpy difference times 4.5 times CL that's all there is to it okay so let's figure out what I may be to use we're developing out of here let me get my calculator here alright our enthalpy which is twenty point six twenty six point one six let me get my calculator out so we're going to go we'll clear that out we're going to go twenty six point one six for the return if I subtract the supply from it twenty point to an equals five point nine six so man put the difference is five point nine six so there's going to be times four point five times CFM moving up use 1280 it's pretty close to what we had I didn't write down let see offense I don't remember what it was now but that was pretty close to what it was all right so when I multiply all that together now me clear this over yeah all righ