hvac

I own a condo in a commercial building that uses chilled or heated water (depending on season) in the HVAC. The controlling valves in my two systems are Honeywell: 120 VAC, two position zone valves with aquastats, and both have failed. I was able to locate one powerhead,part number 40003916-045...

i bought a house that I am in process of renovating. The AC was working up until a few days ago. Now, the inside fan blows air but the outside unit will not kick on. From reading other posts, I decided to test the contactor. Pulled the panel with breaker & system on. But I'm not getting 220...

In remodeling my bathroom I had to convert a 6"x6" square duct underneath the floor joists in the basement to flex so I can get around my new toiler drain. I cannot for the life of me find a 6"x6" square to 6" round transition anywhere. Do I need to fabricate one myself? I don't know what to...

Good evening, I recently moved into a new apartment (Built in 1999 but very well kept). The apartment has an Apollo based system. Since my girlfriend and I moved in the sound has occurred, that has been 10 days. It has been worse then what it is now. In the past ten days of narrowing down...

Hi, need Help in picking replacement Central HVAC system for our house the Square footage of the home is 1,990, and the zip code is 94520 for our climate we get 80, 90, and low 100 degrees in the summer, in the winter we get upper 30 to 40 degrees at night our home doesn't have good insulation...

I am concerned that the condensate pipes from my HVAC unit are not installed to code. I live in Washington, DC. The HVAC unit is in a closet off the kitchen in a second floor condo. Condensate from the furnace and air conditioner currently drain through a 1 inch pipe to an ejector pump on the...

Hi all. Longtime lurker, first time poster. This forum is immensely helpful and I appreciate any and all input. My scenario: New construction house (2013). Unfinished basement being partially finished (by me) to add a great room and a bathroom. Bathroom is plumbed/framed/electrical finished...

I am trying to add a bathroom fan in a ceiling with a slopped ceiling (low points are exterior walls, high point is middle of the house). I am wondering where the best place the place the fan is given that I have minimal space for insulation (just between the 2X6 ceiling joists as there is no...