Heating and air conditioning - Oh Boy

Author

Oh Boy - Right Again...

Michael Cerkowski

2005-10-21, 2:21 am

....about the bad stuff, as usual. A while back I expressed
concerns about the length of the horizontal run of flue pipe
in our new furnace installation. I was assured that, as long
as the 7+' run had a pitch of at least 1/4" per foot, it
would be fine. Well, it is fine - IF and only IF the outside
temperature is no warmer than the mid 40's, farenheit. Warmer
than that, and the damned thing smokes on startup. The old furnace,
which had about a 3' horizontal run, would start and run smokeless
in 70 degree weather while being serviced. We are having a stainless
steel liner and cap installed, and if that doesn't work, a draft
inducer. Then I'm going after the installers for the cost. Bottom
line: if you don't absolutely *have to* move a furnace farther away
from the chimney, *don't fucking do it*. It's shitty work like this
that gives installers - good ones included - a bad name.
--

B-Hate-Me

2005-10-21, 3:21 pm

"Michael Cerkowski" <mjc1@albany.net> wrote in message
news:43587D5E.288D@albany.net...
> ...about the bad stuff, as usual. A while back I expressed
> concerns about the length of the horizontal run of flue pipe
> in our new furnace installation. I was assured that, as long
> as the 7+' run had a pitch of at least 1/4" per foot, it
> would be fine. Well, it is fine - IF and only IF the outside
> temperature is no warmer than the mid 40's, farenheit. Warmer
> than that, and the damned thing smokes on startup. The old furnace,
> which had about a 3' horizontal run, would start and run smokeless
> in 70 degree weather while being serviced. We are having a stainless
> steel liner and cap installed, and if that doesn't work, a draft
> inducer. Then I'm going after the installers for the cost. Bottom
> line: if you don't absolutely *have to* move a furnace farther away
> from the chimney, *don't fucking do it*. It's shitty work like this
> that gives installers - good ones included - a bad name.

Who the fuck elected *you* to the US Bureau Of Standards?

~Here's your fucking sign...Go away.

Steve Scott

2005-10-21, 6:21 pm

Then your chimney has poor draft.

On Fri, 21 Oct 2005 05:09:38 GMT, Michael Cerkowski <mjc1@albany.net>
wrote:

>...about the bad stuff, as usual. A while back I expressed
>concerns about the length of the horizontal run of flue pipe
>in our new furnace installation. I was assured that, as long
>as the 7+' run had a pitch of at least 1/4" per foot, it
>would be fine. Well, it is fine - IF and only IF the outside
>temperature is no warmer than the mid 40's, farenheit. Warmer
>than that, and the damned thing smokes on startup. The old furnace,
>which had about a 3' horizontal run, would start and run smokeless
>in 70 degree weather while being serviced. We are having a stainless
>steel liner and cap installed, and if that doesn't work, a draft
>inducer. Then I'm going after the installers for the cost. Bottom
>line: if you don't absolutely *have to* move a furnace farther away
>from the chimney, *don't fucking do it*. It's shitty work like this
>that gives installers - good ones included - a bad name.

--
'I'm heavily armed, easily bored and
OFF my medication...'

Power's Mechanical

2005-10-21, 8:21 pm

On Fri, 21 Oct 2005 05:09:38 GMT, Michael Cerkowski <mjc1@albany.net>
wrote:

>...about the bad stuff, as usual. A while back I expressed
>concerns about the length of the horizontal run of flue pipe
>in our new furnace installation. I was assured that, as long
>as the 7+' run had a pitch of at least 1/4" per foot, it
>would be fine. Well, it is fine - IF and only IF the outside
>temperature is no warmer than the mid 40's, farenheit. Warmer
>than that, and the damned thing smokes on startup. The old furnace,
>which had about a 3' horizontal run, would start and run smokeless
>in 70 degree weather while being serviced. We are having a stainless
>steel liner and cap installed, and if that doesn't work, a draft
>inducer. Then I'm going after the installers for the cost. Bottom
>line: if you don't absolutely *have to* move a furnace farther away
>from the chimney, *don't fucking do it*. It's shitty work like this
>that gives installers - good ones included - a bad name.

xxxx

You run your furnace when its mid forties? What are you some kind of
wussie?

Now they are going to line the flue and if that dont work, put a power
venter on it? Sounds like they dont have a clue and are guessing.

I can guess from here and my guess your some kind of brain dead loser.
Am I right?

Get a combustion analysis done and post the results with overfire and
flue draft numbers from start up to steady state. Post a pic of this
abortion so everyone can laugh their asses off.

Oscar_Lives

2005-10-21, 9:21 pm

"Michael Cerkowski" <mjc1@albany.net> wrote in message
news:43587D5E.288D@albany.net...
> ...about the bad stuff, as usual. A while back I expressed
> concerns about the length of the horizontal run of flue pipe
> in our new furnace installation. I was assured that, as long
> as the 7+' run had a pitch of at least 1/4" per foot, it
> would be fine. Well, it is fine - IF and only IF the outside
> temperature is no warmer than the mid 40's, farenheit. Warmer
> than that, and the damned thing smokes on startup. The old furnace,
> which had about a 3' horizontal run, would start and run smokeless
> in 70 degree weather while being serviced. We are having a stainless
> steel liner and cap installed, and if that doesn't work, a draft
> inducer. Then I'm going after the installers for the cost. Bottom
> line: if you don't absolutely *have to* move a furnace farther away
> from the chimney, *don't fucking do it*. It's shitty work like this
> that gives installers - good ones included - a bad name.
> --

What part of NFPA vent tables do you not understand?

Go away, Troll.

Cooltemp Industries

2005-10-21, 10:21 pm

Michael Cerkowski wrote:
> ...about the bad stuff, as usual. A while back I expressed
> concerns about the length of the horizontal run of flue pipe
> in our new furnace installation.

If it's a new furnace, it has to be at least a mid-efficiency, which
means it has a ventor motor, and a 7 foot run is not that far.
Maybe your chimney is undersized, or has a partial restriction.

Michael Cerkowski

2005-10-22, 7:21 pm

Cooltemp Industries wrote:
>
> Michael Cerkowski wrote:
>
> If it's a new furnace, it has to be at least a mid-efficiency, which
> means it has a ventor motor, and a 7 foot run is not that far.
> Maybe your chimney is undersized, or has a partial restriction.

As I noted, the old furnace - an early high efficiency unit that
ran at about 82% - had no draft problems, regardless of outside temp.
We had a tech in here last night from the company that installed the
new Thermopride. He was here for three hours. They had set the controls
all wrong, left the oil line fitting leaking, and it took him at least
an hour to get it firing correctly. Now it's running at 87%, but we
still don't know if the draft will be adequate above 50 degrees. That's
with a new chimney liner. I stand by what I wrote: if you don't really
*have* to move a furnace 7' away from the chimney...don't.

Steve Scott

2005-10-22, 8:21 pm

We have many oil fired furnaces we service that are 7' or more away
from the chimney. The problem occurs with low draft conditions and in
that case it doesn't matter whether the chimney is 2' away or 20'.

We have one unit where the chimney is about 4' away and we can't ever
get negative draft over fire. It's on a boiler and the chimney will
only develop -0.02" - -0.03" wc draft. Still no smell in the
basement.

On the other hand you do want the unit as close to the vent as
possible. Just saying 7' shouldn't be a problem.

On Sat, 22 Oct 2005 22:04:12 GMT, Michael Cerkowski <mjc1@albany.net>
wrote:

> As I noted, the old furnace - an early high efficiency unit that
>ran at about 82% - had no draft problems, regardless of outside temp.
>We had a tech in here last night from the company that installed the
>new Thermopride. He was here for three hours. They had set the controls
>all wrong, left the oil line fitting leaking, and it took him at least
>an hour to get it firing correctly. Now it's running at 87%, but we
>still don't know if the draft will be adequate above 50 degrees. That's
>with a new chimney liner. I stand by what I wrote: if you don't really
>*have* to move a furnace 7' away from the chimney...don't.

--
The mass of mankind was not born with
saddles on their backs, nor a favored
few booted and spurred, ready to ride
them legitimately, by the grace of God.

~^Johnny^~

2005-10-22, 10:21 pm

On Sat, 22 Oct 2005 23:05:27 GMT, Steve Scott <sscott1@twcny.rr.com>
wrote:

>We have many oil fired furnaces we service that are 7' or more away
>from the chimney. The problem occurs with low draft conditions and in
>that case it doesn't matter whether the chimney is 2' away or 20'.

If it's a military installation,
there should be a register for the draft. ;->

--
-john
wide-open at throttle dot info

Power's Mechanical

2005-10-23, 11:21 am

We have one unit where the chimney is about 4' away and we can't ever
get negative draft over fire. It's on a boiler and the chimney will
only develop -0.02" - -0.03" wc draft. Still no smell in the
basement.

xxxx

Have you taken it apart and cleaned the HX? That burner must be
running like shit with no overfire draft and a low stack draft.

LinkBot