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Old 05-20-2014, 01:48 PM   #46
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He did give me a written quote, Yuri, just said it might go a couple of hundred over. He runs his own business, just him and his wife. I did check, and they have a good reputation. Now, if like you're saying, he comes up with an additional six or seven hundred dollars, we're going to have a problem.

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Old 05-20-2014, 01:50 PM   #47
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As long as you have a written quote then I would not worry. For a couple hundred dollars I would not get excited especially as you want to have a long term good relationship with him. You are lucky if you can even find someone to do that work.
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Old 05-20-2014, 01:52 PM   #48
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He looked under the house and said he thinks the one ac duct is dripping water because I have an air leak somewhere, and said he would cut into the insulation and inspect the duct. Sealing the area where the vents tie into the duct (existing floor vents) is included in the original estimate.
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Old 05-20-2014, 01:55 PM   #49
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I think you are right about finding someone to do the work. He has to cut through the cement block foundation to make holes for the ducting from the package unit to the existing floor vents. Said he would join to the floor vents in the middle of the house so cooling/heating would be equal at both ends, and would cut holes in the flooring at the middle of the house opposite the existing vents and install floor recirculation vents.
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Old 05-20-2014, 04:02 PM   #50
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The bigger franchise/chain companies and a lot of others just like the quick replace like unit for like unit jobs. To get someone to do custom work is not easy. Sounds like he knows what he is doing. He can build a really good clientele and do well and you should give him references if it turns out well.
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Old 06-17-2014, 09:04 PM   #51
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Update: Brought new Comfortaire unit to house today. Recirculation vents (2) were installed in the middle of the house. They did not have time to finish today as equipment and two workers showed up at 12:30 pm. No old equipment has been removed yet. New ducting will be installed on a y-pipe on the new unit off the blower side, one going to the center of each existing run of ac duct. When I asked one of the installers what could be done about one run dripping condensation during the summer, he told me all sides of the vent would need to be insulated with roll insulation, including the bottom. He said all mobile homes he'd ever seen did this. Maybe so, but surely there is a way to stop it.
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Old 06-17-2014, 09:06 PM   #52
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What I mean by roll insulation is that pink fiberglass that comes on a roll in 16" widths.
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Old 06-17-2014, 10:25 PM   #53
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They use/ should use foil backed insulation and tape all the seams with metal duct tape so it is airtight and does not sweat. Not your basic pink stuff.
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Old 06-18-2014, 06:18 AM   #54
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I will have to bring this up with the company owner. It was also not included in the original estimate.
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Old 06-18-2014, 08:25 AM   #55
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If you did not specifically ask for it then he would leave it the way it is at the same standard as everyone else. Be NICE as everyone has a different idea of what is acceptable. I would imagine it to be a $200 or more upgrade as it is time consuming.
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Old 06-18-2014, 06:35 PM   #56
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I will be nice. Two young guys finished the installation today. I inspected it myself. Y-pipes are uninsulated, and they left a lot of insulation hanging where they installed the recirculation vents. Recirculation vents weren't exactly where I wanted them, but these guys worked diligently under the hot house to install them where they could. Overall, they did a good job. One large recirculation hose is laying on top of one of the supply hoses, unattached, but I don't think it will hurt anything. I may have to get under there and re-insulate the floor joists myself. I still have to discuss insulating the vents. They drip water. I might be able to do it myself, but then again I might not.
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Old 06-20-2014, 12:46 AM   #57
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Following, thanks
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Old 06-21-2014, 02:01 PM   #58
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Yuri: If you don't mind, help me out with this dilemma. One of the recirculation vents is in a bad spot in the hallway, which I agreed to let them install there because they said their hoses were only 25 feet long. Well, it is in the way and my wife doesn't like stepping on it. Can a (I think it's a 12") hose be extended by joining to another hose with a metal joiner pipe? The installers were young guys, but they worked hard to install the vent, even if they did leave the insulation hanging. Would it be fair to ask that the vent be moved further over with a hose extension for an additional labor charge to me? I am also going to ask them if they will cut me an additional small doorway in the concrete block on the other end of the house so I will have access to each end without having to crawl 65 feet.
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Old 06-21-2014, 02:57 PM   #59
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It can be joined and they will slip the insulation over it. It will add some weight and ideally the pipe should have no sags and be supported. My method is to cut 4" wide strips of poly/vapor barrier plastic and make a sling and then staple it to the joists/wood. That way it does not cause a kink. Not rocket science and you can DIY later. As long as you are willing to pay they should do it 4 U. The longer the pipe is the more restriction it has so I would try talk her out of it unless it is unsafe to step on.
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Old 06-22-2014, 08:53 AM   #60
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Yuri: On a second note, the Y-pipes they used to join the two hoses going to the separate vent runs are uninsulated and laying in the dirt. If I have to, I will insulate these myself, also, it being no big deal. If I move the recirculation vent, it will be about six feet further away.

I am afraid to ask what it would cost to cut into the existing rolled insulation under the vents and have the vent run wrapped by the silver foil insulation you were talking about as the vent run is up into the joist area. I could attempt this myself as I have no qualms about crawling up under the house, but am unsure how to do it. Would you wrap it around the vent run in a spiral, or run a length of insulation parallel with the run top, sides, and bottom and try to tape it up with the foil tape?

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