Recovering misc cheat sheets I lost in HD crash. Does anyone have an updated HVAC age chart for various manufacturers? Thanks in advance
Those charts were big about 10 years ago, but I dumped 'em in favor of the site Junior posted. Easy to access on the laptop or the phone without searching through years of saved articles and folders!
Here is a trick question: why has not a single HI software incorporated automatic look up of age based on brand & serial number entered into the software?