AVS Forum Special Member
Join Date: Dec 2003
Location: Bethesda, MD USA
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I share your sentiments, it's hard to find reliable folks in any profession. It's not impossible for a non-professional to tackle it. That hard part isn't learning the required info, it's having enough tools and time to put it all together into a viable solution.
It's been my experience that when folks have areas of specific differences in HVAC results there's usually something larger wrong with the situation. Like poorly sized ducts somewhere, or mis-connected ones, or even the wrong kind of system. Thus my caution regarding the notion of sticking dampers in the mix somewhere. Finding out why those rooms aren't conditioned effectively would be my first thought. Have a plan for solving that first and then look to see what gizmos can be applied.
Could be as simple as a problem we had in the old house; someone had buried a manual damper behind a ceiling bulkhead (and it was 70% closed). It would have been dead simple for someone with a duct camera to find. Curiously the duct cleaning folks didn't discover it because their brush passed in along the direction of the vane and didn't get caught. I've got plenty of tools but as yet no cameras for ducts or plumbing. I'd have been more than willing to cut holes in the bulkhead had I know there was even a damper in there!
I'm eventually going to add an dust collecting system for my workshop. But I've got a whole lot more organizing and unpacking to do first! At some point I do want to revisit how to use RA2 to handle a blower motor. I tried using one on our range hood but it didn't work reliably (8ANS is probably not the right switch). Again, that's one of those 'round tuit' things...