High Efficiency Furnace - ductwork changes needed?
 

We can't *see* it from here, your best bet is to call your local,
*competent*, licensed, insured, professionally trained, HVAC technician to
assess your needs and properly install a correctly sized furnace for your
maximum comfort and minimum utility bills.

"Christian Fox" wrote in message
...
Hi,

I'm planning on getting a high-efficiency natural gas-fired furnace to
replace our
current 15-year old standard-efficiency furnace within the next year or
so.

I've heard that the high-efficiency furnaces require different ducting,
and use a vent on
the side of the house rather than a chimney as an exhaust.

Our current furnace has two insulated ducts going to the side of the
house, and the
chimney running to the roof. If I get a new high-efficiency furnace, is
it likely that
the ducts to the wall will need to be changed?

The reason I ask is that I'm considering finishing my basement, and if I
do the ducts
won't be easily accessible. If the ductwork will need to get changed or
replaced, I'd
rather do that before finishing the basement ceiling.

Thanks in advance for your help!

Christian Fox

On Thu, 6 Oct 2005 20:19:25 -0600, Christian Fox
wrote:

Hi,

I'm planning on getting a high-efficiency natural gas-fired furnace to replace our
current 15-year old standard-efficiency furnace within the next year or so.

Do not cross-post to alt.hvac


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"Christian Fox" wrote in message
...
Hi,

I'm planning on getting a high-efficiency natural gas-fired furnace to
replace our
current 15-year old standard-efficiency furnace within the next year or
so.

I've heard that the high-efficiency furnaces require different ducting,
and use a vent on
the side of the house rather than a chimney as an exhaust.



Generally you can use the same duct with a high efficiency furnace, but that
is not saying your current duct work is correct!
Get someone in the trade to look over you ducts and give you an evaluation.
Greg

"Christian Fox" wrote in message
...
In article ,
says...
We can't *see* it from here, your best bet is to call your local,
*competent*, licensed, insured, professionally trained, HVAC technician to
assess your needs and properly install a correctly sized furnace for your
maximum comfort and minimum utility bills.

Read my original post. I'm not getting a new furnace right away. I'm
finishing my
basement right away. I don't want to cover up the ducts, only to find out
that they need
to get changed after the basement ceiling has been drywalled.

So, I'll simplify the question: Can a high-efficiency natural gas furnace
use the same
ductwork as a 15-year old, standard-efficiency furnace?

I'll simplify the answer... I can't *see* it from here.... and I don't know
if the system was sized and installed correctly in the first place.
Now, as far as finishing the basement *before* you have the HVAC work done,
you are putting the cart before the horse. There is a reason why the HVAC
techs and installers work their magic *BEFORE* the sheetrock goes up.

"Christian Fox" wrote in message
...
In article ,
says...
I'm planning on getting a high-efficiency natural gas-fired furnace to
replace our
current 15-year old standard-efficiency furnace within the next year or
so.

Do not cross-post to alt.hvac

The post was on-topic for both alt.home.repair and alt.hvac, so I posted
it to both
groups. If you don't like it, killfile me or the thread.

alt.hvac is comprised largely of assholes who donn't know anything about
hvac anyway, but likely screw their customers by acting like they know
everything.

"FDR" wrote in message
...

alt.hvac is comprised largely of assholes who donn't know anything about
hvac anyway, but likely screw their customers by acting like they know
everything.


Opinions are like assholes......

Now, please do explain your motivation in continuing with the cross-posting,
if anything other than an attempt to behave as one......


On second thought, don't bother with responding to me--appears you're just
yet another troll to place into the bozo bin for the time being....

--

SVL

you will perhaps reline the chimney to the roof.
you may be resizing or replacing the wall pipes.

ventilation. gas dryers versus electric clothes dryers.
bring electrical connections to the basement ceiling surface. don't
bury any pipe connection shutoffs.
finishing a basement is a great big project best discussed with a
building inspector. a friend of mine added a beautiful and convenient
basement bathroom only to face a toxic mold cleanup just a couple of
years later related to drips and condensation on a water line.
sewage. drainage. radon. legal windows and egress. alarm systems for CO
and smoke. moisture arguments of seepage vs condensation. discovering
that a dehumidifier is just an air conditioner with a drain hose.

Christian Fox wrote:
Hi,

I'm planning on getting a high-efficiency natural gas-fired furnace
to replace our current 15-year old standard-efficiency furnace within
the next year or so.

I've heard that the high-efficiency furnaces require different
ducting, and use a vent on the side of the house rather than a
chimney as an exhaust.

Our current furnace has two insulated ducts going to the side of the
house, and the chimney running to the roof. If I get a new
high-efficiency furnace, is it likely that the ducts to the wall will
need to be changed?

The reason I ask is that I'm considering finishing my basement, and
if I do the ducts won't be easily accessible. If the ductwork will
need to get changed or replaced, I'd rather do that before finishing
the basement ceiling.

Thanks in advance for your help!

Christian Fox

There is no specific reason you would need different distribution
ducting. However you may want to have what you have inspected and evaluated
as many homes have a poorly sized and designed duct system. You can do that
anytime. If you are adding A/C then you are likely to need some adjustment.
A good duct design can make any system perform better giving you more
efficiency and comfort.

It is likely you will need a new intake-exhaust for the new furnace.
That depends on what you get. Generally they are easy to install and should
not pose a problem. If you are doing work now, you might want to plan. The
problem is who knows for sure what you will need for next year's equipment?

If it were me, I would have a pro take a good look at the existing duct
system and offer you suggestions about what you may want to do now.
Consider zoning as well. Now is the time to consider that.


--
Joseph Meehan

Dia duit

Yes.

Side note, drywalling a cellar ceiling makes every future repair project
much harder. Drop ceilings with ceiling panels are much easier for service
guys. If you drywall the ceiling, you may well regret it later.

--

Christopher A. Young
Do good work.
It's longer in the short run
but shorter in the long run.
..
..


"Christian Fox" wrote in message
...

So, I'll simplify the question: Can a high-efficiency natural gas furnace
use the same
ductwork as a 15-year old, standard-efficiency furnace?

wrote in message
...
On Thu, 6 Oct 2005 20:19:25 -0600, Christian Fox
wrote:

Hi,

I'm planning on getting a high-efficiency natural gas-fired furnace to
replace our
current 15-year old standard-efficiency furnace within the next year or
so.

Do not cross-post to alt.hvac


What a silly person.
Imagine posting a question about a furnace installation to alt.hvac

What could the OP have been thinking ?

AMUN

I would seriously consider replacing all the duct work with new
higher R-Value duct work. My local home depot has several choices
for R-value for their flexible duct. Spend some money now and with
gas prices tripling, you will be handsomely repaid.


The furnace you choose will have specific venting requirements so
just read the documentation that comes with the furnace. Many of the
furnace installation docs are online so check their web site.





On Thu, 6 Oct 2005 20:19:25 -0600, Christian Fox
wrote:

Hi,

I'm planning on getting a high-efficiency natural gas-fired furnace to replace our
current 15-year old standard-efficiency furnace within the next year or so.

I've heard that the high-efficiency furnaces require different ducting, and use a vent on
the side of the house rather than a chimney as an exhaust.

Our current furnace has two insulated ducts going to the side of the house, and the
chimney running to the roof. If I get a new high-efficiency furnace, is it likely that
the ducts to the wall will need to be changed?

The reason I ask is that I'm considering finishing my basement, and if I do the ducts
won't be easily accessible. If the ductwork will need to get changed or replaced, I'd
rather do that before finishing the basement ceiling.

Thanks in advance for your help!

Christian Fox

"PrecisionMachinisT" wrote in message
...

"FDR" wrote in message
...

alt.hvac is comprised largely of assholes who donn't know anything about
hvac anyway, but likely screw their customers by acting like they know
everything.


Opinions are like assholes......

Now, please do explain your motivation in continuing with the
cross-posting,
if anything other than an attempt to behave as one......


On second thought, don't bother with responding to me--appears you're just
yet another troll to place into the bozo bin for the time being....

The truth that you are assholes must hurt.


--

SVL

Sherman wrote:
I would seriously consider replacing all the duct work with new
higher R-Value duct work. My local home depot has several choices
for R-value for their flexible duct.

I recommend avoiding "flexible" duct whenever possible. It insulates
OK, but it does not have good air flow.

Ductwork in a conditioned space like interior walls or floors, does not
generally need insulation.

For those installations were flexible duct is unavoidable and where the
ductwork will in an area that is not conditioned, then I definitely should
be insulated.

Spend some money now and with
gas prices tripling, you will be handsomely repaid.


The furnace you choose will have specific venting requirements so
just read the documentation that comes with the furnace. Many of the
furnace installation docs are online so check their web site.





On Thu, 6 Oct 2005 20:19:25 -0600, Christian Fox
wrote:

Hi,

I'm planning on getting a high-efficiency natural gas-fired furnace
to replace our current 15-year old standard-efficiency furnace within
the next year or so.

I've heard that the high-efficiency furnaces require different
ducting, and use a vent on the side of the house rather than a
chimney as an exhaust.

Our current furnace has two insulated ducts going to the side of the
house, and the chimney running to the roof. If I get a new
high-efficiency furnace, is it likely that the ducts to the wall will
need to be changed?

The reason I ask is that I'm considering finishing my basement, and
if I do the ducts won't be easily accessible. If the ductwork will
need to get changed or replaced, I'd rather do that before finishing
the basement ceiling.

Thanks in advance for your help!

Christian Fox

--
Joseph Meehan

Dia duit

"Stormin Mormon" wrote in message
...
Yes.

Let me tell you something, you gay, homosexual fanny pirate.
You just flat out suck dick.
On top of being a mormon, the stupidest of all the ****ing stupid
religions, you are a fraud and a hack.

Do the world a favor and kill yourself......NOW.

Do It.


PS- You ****ing homo.

"Christian Fox" wrote in message
...
In article ,
says...
We can't *see* it from here, your best bet is to call your local,
*competent*, licensed, insured, professionally trained, HVAC technician to
assess your needs and properly install a correctly sized furnace for your
maximum comfort and minimum utility bills.

Read my original post. I'm not getting a new furnace right away. I'm
finishing my
basement right away. I don't want to cover up the ducts, only to find out
that they need
to get changed after the basement ceiling has been drywalled.

So, I'll simplify the question: Can a high-efficiency natural gas furnace
use the same
ductwork as a 15-year old, standard-efficiency furnace?

Yes, if your existing duct work is adequate, but it may not be. I would not
bet on it, you may have crap for duct right now!
Does that clear it up??
Whether you do it now or ten years from now the answer is the same. We can
not see it from here. Get a local to look it over now, before you remodel!
Greg

Christian Fox posted for all of us...
I don't top post - see either inline or at bottom.

Hi,

I'm planning on getting a high-efficiency natural gas-fired furnace to replace our
current 15-year old standard-efficiency furnace within the next year or so.

I've heard that the high-efficiency furnaces require different ducting, and use a vent on
the side of the house rather than a chimney as an exhaust.

Our current furnace has two insulated ducts going to the side of the house, and the
chimney running to the roof. If I get a new high-efficiency furnace, is it likely that
the ducts to the wall will need to be changed?

The reason I ask is that I'm considering finishing my basement, and if I do the ducts
won't be easily accessible. If the ductwork will need to get changed or replaced, I'd
rather do that before finishing the basement ceiling.

Thanks in advance for your help!

Christian Fox

Maybe... and you're welcome
--
My boss said I was dumb and apathetic.
I said I don't know and I don't care...

Tekkie

High Efficiency Furnace - ductwork changes needed?
 

"FDR" wrote in message
...

"PrecisionMachinisT" wrote in message
...

"FDR" wrote in message
...

alt.hvac is comprised largely of assholes who donn't know anything
about
hvac anyway, but likely screw their customers by acting like they know
everything.


Opinions are like assholes......

Now, please do explain your motivation in continuing with the
cross-posting,
if anything other than an attempt to behave as one......


On second thought, don't bother with responding to me--appears you're
just
yet another troll to place into the bozo bin for the time being....

The truth that you are assholes must hurt.



For the time being....

Makes pefect sense to me--in your continued cross-posting, this makes you
almost like one of us--welcome to the club, then !!!

Any other reason for you keep cross-posting this ****ing **** ???

--

SVL