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Posted by on October 18, 2006, 10:27 am
I called a few places with quotes, but how do I know if they will
provide a good service? Some say it will take two men to do the job
in about 1hr and 15min. An other said one person job that will take
1.5 hours or more. We have a average size house with 13 registers
and 3 cold returns. Any advise? thanks
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Posted by dantheman on October 18, 2006, 12:31 pm
> We have a average size house with 13 registers
> and 3 cold returns. Any advise? thanks
This doesn't sound right--there should be a return for every room? All
cleaned, of course...
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Posted by Jonathan Kamens on October 18, 2006, 12:47 pm
>> We have a average size house with 13 registers
>> and 3 cold returns. Any advise? thanks
>
>This doesn't sound right--there should be a return for every room? All
>cleaned, of course...
Most houses built nowadays don't have a return in every room,
they have a maximum or one or two returns centrally located
on each floor of the house. It's one of the ways that
builders cut costs.
This implies that rooms with output vents need to have their
doors kept open all the time, or there needs to be enough
space at the top or bottom of the door to allow air to escape
so that it can get to the return vent. Otherwise, if the
room is well-sealed (which most rooms in modern houses are),
significantly less air gets into the room from the duct when
the door is closed, and the proper room temperature can't be
maintained.
There have been previous discussions about this in
misc.consumers.house. See, e.g.:
http://groups.google.com/group/misc.consumers.house/browse_thread/thread/231a04feb25f2fee/f38d56001349d097
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Posted by lbbss on October 18, 2006, 3:35 pm
sorry, I took a better look most rooms also had a cold air return.
The house is 37 years old.
>
> This doesn't sound right--there should be a return for every room? All
> cleaned, of course...
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Posted by m Ransley on October 18, 2006, 4:19 pm
I had it done the machine used was the size of a furnace, it had a hepa
filter and reportably cost 10000$. I wish I had not done it since I was
sick for a week after, the sealed in spores are loosened and realeased
by cleaning. For 99.99% cleaning is a waste of money.
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