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homeowner question - return vents?

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homeowner question - return vents? Joe S. 10-29-2007
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Posted by =?ISO-8859-15?Q?Tekkie=AE?= on November 1, 2007, 9:07 pm
posted for all of us...

>
> > My intention here was to seek an opinion by anyone who has no
> >pecuniary interest in the advice rendered. With the exception of
> >udarrell, most of the folks here seem to be more interested in waving
> >their dick around to see who can insult civilians with the greatest
> >intensity. With the exception of just a few persons, this group
> >appears to be largely a usenet wasteland.
>
> Your assessment is mostly correct. This group is basically a online
> circle jerk.
>
You are the pivot man!
--
Tekkie GRIP = Get Rid of Incumbent Politicians

Posted by StarkShark on October 30, 2007, 9:49 am

> Short story: I own an old 2 story frame house with basement in North
> Central WI built before 1930. I am in need of a new furnace and "was"
> considering a high efficiency unit with central air (house is 24x34
> ft).
>
> Every HVAC contactor who I have received a quote from says that for a
> high efficiency furnace w/central air that I realistically need return
> vents in every room. I understand the reason why I need return vents,
> but I'm not willing to shell out the extra $ to put returns all over
> the house since I live in a region where central air is not a
> requirement for comfortable living in the summer time (I have large
> trees on the South elevation which provide substantial shade to the
> house in the summer). I currently have an ancient Lenox Aire Flo
> K5-135M (135k BTU input / 108k BTU output) with the air intake on top
> of the furnace and a single return opening through the first floor
> living room.
>
> The question is whether it is possible to have a high efficiency
> furnace without return vents? (the furnace is in the basement). I'm
> willing to have a lower efficiency unit without central air as a
> trade-off for not having to spend the extra $ to put returns all over
> the house. If I go with a lower efficiency unit, what percentage
> efficiency might it be, and what would be the best make/model for this
> type of scenario/design?
>
> Thanks in advance for any advice,
>
> Joe

Joe, I just found out this group is a troll party. Udarell is about the
only helpful person here. The standard answer to most questions appears
to be "you're a retard. Call a pro." That said, FTWHD is right.

If you've asked several contractors and they have all said you need
returns in every room, it's reliable information. That or it's a
conspiracy. ;-)

I suggest you consider the more expensive option. It will increase the
value of the house in the long run. Plus, the high efficiency will
eventually justify itself with the lower utility cost.

--

Posted by on October 30, 2007, 12:07 pm

>
> > Short story: I own an old 2 story frame house with basement in North
> > Central WI built before 1930. I am in need of a new furnace and "was"
> > considering a high efficiency unit with central air (house is 24x34
> > ft).
> >
> > Every HVAC contactor who I have received a quote from says that for a
> > high efficiency furnace w/central air that I realistically need return
> > vents in every room. I understand the reason why I need return vents,
> > but I'm not willing to shell out the extra $ to put returns all over
> > the house since I live in a region where central air is not a
> > requirement for comfortable living in the summer time (I have large
> > trees on the South elevation which provide substantial shade to the
> > house in the summer). I currently have an ancient Lenox Aire Flo
> > K5-135M (135k BTU input / 108k BTU output) with the air intake on top
> > of the furnace and a single return opening through the first floor
> > living room.
> >
> > The question is whether it is possible to have a high efficiency
> > furnace without return vents? (the furnace is in the basement). I'm
> > willing to have a lower efficiency unit without central air as a
> > trade-off for not having to spend the extra $ to put returns all over
> > the house. If I go with a lower efficiency unit, what percentage
> > efficiency might it be, and what would be the best make/model for this
> > type of scenario/design?
> >
> > Thanks in advance for any advice,
> >
> > Joe
>
> Joe, I just found out this group is a troll party.


You haven't been here long enough to know jack shit.
You just got pissy when you didn't get the answers you were looking for, for
FREE.
Now, go fuck off in the corner.



Posted by Jack on November 1, 2007, 2:44 pm
> Short story: I own an old 2 story frame house with basement in North
> Central WI built before 1930. I am in need of a new furnace and "was"
> considering a high efficiency unit with central air (house is 24x34
> ft).
>
> Every HVAC contactor who I have received a quote from says that for a
> high efficiency furnace w/central air that I realistically need return
> vents in every room. I understand the reason why I need return vents,
> but I'm not willing to shell out the extra $ to put returns all over
> the house since I live in a region where central air is not a
> requirement for comfortable living in the summer time (I have large
> trees on the South elevation which provide substantial shade to the
> house in the summer). I currently have an ancient Lenox Aire Flo
> K5-135M (135k BTU input / 108k BTU output) with the air intake on top
> of the furnace and a single return opening through the first floor
> living room.
>
> The question is whether it is possible to have a high efficiency
> furnace without return vents? (the furnace is in the basement). I'm
> willing to have a lower efficiency unit without central air as a
> trade-off for not having to spend the extra $ to put returns all over
> the house. If I go with a lower efficiency unit, what percentage
> efficiency might it be, and what would be the best make/model for this
> type of scenario/design?
>
> Thanks in advance for any advice,
>
> Joe

Hi Joe....

I'll put my two cents in. As you might expect, there are a broad
range of opinions on how to design residential AC systems. In
general, and a "best" practice, you'll have a return for every room
that you are supplying. That allows the room heat load to be taken
out and directly fed to the AC unit. That said, most residential
systems are not built or designed that way. I live in northern calif
(SF Bay) were we have limited AC demands. We have only one return in
a common area. I think your designer can take some of this into
consideration when designing your system. You'll still save energy in
that the newer units are much better in terms of using the energy they
burn (the definition of effieiency - energy in divided by energy
out). You may find that some rooms may not cool as well as they might
if had a direct return. Check out some commericial or other
residential .....I'm sure you'll find that each office or room does
not have a return. Having said that, if you have a common return or a
limited number of returns, thier location needs to be thought out some
and they have to be sized adequately. With fewer returns, the
remaining returns will need to larger to accomidate the added flow.
hope this helps.....Jack


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