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Attic HVAC
skibo
Member Posts: 1
Apologies for the ignorant questions. We are doing a remodel where we are finishing a 1000 sqft attic. Our GC is dealing directly with the HVAC vendor and we have a hard time getting questions answered. I'm feeling they are trying to oversell us. They are suggesting a full HVAC system for the attic (specs below). I don't even know what the spec mean. All of our neighbors simply have a heating/AC unit setup in the wall of their finished attics and the summer/winter temps are great. Do we need the building of a complete system with a separate mechanicals room in our attic? Please help!
System:
- TCJF24
- TM9E040A10MP11
- MV/MC FOR 60 BTU
System:
- TCJF24
- TM9E040A10MP11
- MV/MC FOR 60 BTU
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Comments
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http://www.upgnet.com/PdfFileRedirect/1104909-URG-A-0214.PDF
http://www.upgnet.com/PdfFileRedirect/700697-LTG-C-0714.PDF
Looks like a 14.5 SEER A/C with a gas 90+furnace. I am not a big fan of York or Luxaire but that means diddly/squat as I'm sure many others love the stuff. If others have a PTAC and they are happy with it tell him to price one out for you.
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Where are you located so wall people can get an idea of your heating/cooling load. Makes a big difference. How many rooms?0
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Seems lame, you can not get answers? Aren't you the one with the check book? That's why I don't for builders anymore, balogna like this.
You may wish to contemplate ductless hvac, like Mitsubishi or Fujitsu
I don't know you or your builder, but someone needs to step up and say " don't do anything until I have more information".
You may even wish to hire your own hvac guy if the builder want to play his builder games with you.
I could go on and on, yet I'll stop at that1 -
Not sure where you live, but in colder climates it's not recommend to install 90% or higher efficiency furnaces in unconditioned spaces in the attic. This is due to they are condensing furnaces. I've seen it one time where the secondary heat exchanger froze due to power outage. So yes it's own mech room up in the attic would be recommended.0
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Contractor tried to sell my cousin a system like that for a sunporch. For a considerable savings I sent her a through the wall unit like a motel room. They aren't all junky & noisy. A GE 6100 is really quiet and efficient. Or for about the same loot as the York system, the mini splits are whisper quiet and super efficient.0
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What a joke, some builders are just nuts !1
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Like this?njtommy said:Not sure where you live, but in colder climates it's not recommend to install 90% or higher efficiency furnaces in unconditioned spaces in the attic. This is due to they are condensing furnaces. I've seen it one time where the secondary heat exchanger froze due to power outage. So yes it's own mech room up in the attic would be recommended.
http://www.wral.com/homeowners-find-green-heating-units-can-t-take-the-cold/14598654/
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Yes 100% like that.0
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That's just plain incompetence..... Correct me if I am wrong, but does water still freeze at 32*????? Someone is not stating all the facts. If carrier found out that equipment was being exposed to 32* and or lower, they would be perfectly within their rights to VOID any and all warranty's on any unit installed in same matter on this job since it would not be the only failure. In addition, running drain to a lower conditioned space is in NO way a solution in solving this problem! I find it highly doubtful that this application passed any kind of local codes seeing that the laws a psychics cannot be change for convenience sake..... Failure to plan and obvious oversight due to additional cost is no excuse for hoping the problem will go away........I guess it's better to address the problem now before damage to the stricter is done!
my, .020 -
From a G.C. that I tried working with at the owners request, "It's just heat, I don't get why everyone is so upset..." It's your money. Put your foot down and tell them you want to see more before you spend more.
I am positive that the code requires the equipment to be in a "conditioned" space. Simply wrapping traps and drains with heat tape doesn't constitute a conditioned space. It has to be insulated, and have controlled heat (electric).
METhere was an error rendering this rich post.
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Now this is an Attic HVAC job! 16' long, 8 feet wide, about 6'6" tall0
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