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Hey Guys, Is there a code for the maximum plenum height for a plenum return? My celing height is 9'-0" and my building height is 18'-0". I'm afraid that on a really warm day it will take alot of coil to cool the office space down. The location is Massachusetts

Does anyone know of a good source for recommended flow rates for PEX tubing?

Hey Guys, I have a mech. shop room to ventilate. The type of equipment are as follows.. 5'x5' Bridgeport 6'X14' Hansvedt Sinker 8'X8' Agie Mondo 5'X4' Grinder I'm going to design the system with a 1,500 fpm air velocity with blastgates on each branch connection below the ceiling, my question...

Hey guys, I'm fairly new to this industry and currently going thru school so bare with me haha. I have a chw pump with a static on the supply of 65 psi going thru a 1-1/4" copper line. Do you know how I can convert my pressure into gpm. Basically this is just part of a total equation I'm...

does anyone know a good resource I can go too, to see the exact dimensions of misc. steel beams, (web, I-beams, etc). Thanks...for example W18x44

Guys, I'm new into the field, so this is probably an easy one for you guys. Does anyone one know the conversion of sq. ft. of steam to BTU's. Also in addition I have a Burnham V-909a steam boiler thats getting piped into a shell & tube heat exchanger, converting it into 80 degree condensing...

yes that is true, but i need whats the recommended amount of people/1,000 sq ft. Thank you anyway

Does anyone know a good reference souce for ventilation for a New Construction Church. The IMC doesn't touch it. Thanks

Guys, I have to ventilate a elevator machine room. My question is at what rate do I have to ventilate it and any other details including duct construction, fire-proofing the fan..such as spark resistant blades, or explosion proof fans, fire dampers at the wall...can I dump it into the plenum...