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Old 12-19-2009, 03:35 PM   #16
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Are you SURE the intake/exhaust pipes go thru the roof and not thru the back or sidewall of the condo where you can get at them? Physically follow them.

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Old 12-19-2009, 03:54 PM   #17
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Are you SURE the intake/exhaust pipes go thru the roof and not thru the back or sidewall of the condo where you can get at them? Physically follow them.
Hi Yuri,

I am on the 1st floor of a three floor building in a middle unit. The two 2" vent pipes leave the small furnace room through the wall about a foot from the ceiling. The walls are finished in drywall. I am really not sure where they exit the building. I just assumed that they would exit at the roof. Is it common for them to exit through the side walls in a multi-story condo building?

Thank you,
Mike
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Old 12-19-2009, 04:38 PM   #18
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Yep, I have seen that and they may use a concentric kit where the 2 pipes join to a common unit. Exhaust shoots out the middle of the donut shaped housing and intake air goes in behind the donut thingy. Go outside and look around.
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Old 12-19-2009, 05:11 PM   #19
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The XR90 is listed as 1 or 2 pipe.
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Old 12-19-2009, 05:53 PM   #20
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We got about 7" so far, got some wind also.

Might want o remove the hose/hoses one at a time from the switch. And make sure they are not restricted with moisture.
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Old 12-19-2009, 06:03 PM   #21
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We got 1/2 an inch and we are supposed to be the "Great White North". LOL. At least the ground will be white for Xmas. Not good for the power toboggan dealers or skiers.
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Old 12-19-2009, 06:18 PM   #22
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We haven't had a snow with much over 2 inches in almost 3 years now.

So we were due to get one.
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Old 12-19-2009, 06:27 PM   #23
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Global warmin, we'll send you some more. LOL
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Old 12-19-2009, 08:38 PM   #24
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I disconnected hoses from the pressure switch, fire box and gas valve and blew through them. They were clear. I reconnected all the hoses. Still did not work. I then removed the hose from the pressure switch and set the stat to heat. The igniter worked and the burners came on. I turned the breaker off, reconnected the hose to the pressure switch and it did not work.

We have received 17" + so far and weather says we should get 3"-4" more by morning. It's about 28 degrees F here. I am in Carroll County.Hope the sun appears tomorrow. Maybe it will clear the vents. There are no vents in the outside walls except for bathrooms & dryer vents. They most likely go through the roof. Maybe I'll be able to see them tomorrow. We will have to bundle up to sleep tonight.

Thank you all very much for all of your generous assistance this evening.

Regards,
Mike
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Old 12-19-2009, 08:48 PM   #25
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Just incase your still awake.

This works sometimes.

If you have a shop vac. And can remove your PVC intake and vent pipe.
Hook the discharge of the shop vac to the pipe (the end that goes outside) and leave it run for 15 minutes or so in each pipe.

If no change in noise from the shop vac, that pipe is clear when you connect the vac to it. Move on to the other pipe.

15 minutes is usually often enough to clear a pipe.
But, is just a temp repair. As the snow can cover it again later.


PS: I'm terrified of heights. No way will you get me to go up on a snow covered pitched roof to clear and repipe a vent system.

Now you know how I know about the shop vac trick.
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Old 12-19-2009, 08:53 PM   #26
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Up here we use a heat gun/paint stripper.
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Old 12-19-2009, 08:55 PM   #27
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Up here we use a heat gun/paint stripper.
If its not restricted to bad, that works fast(most aren't).
If its really iced up. The shop vac gets more air to it faster.
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Old 12-19-2009, 08:59 PM   #28
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I literally used up 7 of my 9 lives workin on unit heaters off forklifts, front end loaders and all kinds of crazy sh*t when I was young and fearless. I will rarely go up on a 1 story bungalow roof and the rest FORGET it.
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Old 12-20-2009, 12:29 AM   #29
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I literally used up 7 of my 9 lives workin on unit heaters off forklifts, front end loaders and all kinds of crazy sh*t when I was young and fearless. I will rarely go up on a 1 story bungalow roof and the rest FORGET it.
I went to to work for a commercial company for a week and a half.
I had a 30 foot ladder that missed the top by five feet. 52 year old man climbing the up the face of the wall like Spiderman.
And I was the Service Manager! Can't imagine what they put their youngsters thru.
That was my last time on a ladder. The boss didn't seem to give much mind to the problem.
Took their truck home and transferred all my stuff to my truck and called them to come and get their truck.

It's idiot employers like this that make a lot of guys go into business for themselves.
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Old 12-20-2009, 11:33 AM   #30
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Hello Everyone,

It's 12:30 PM Eastern Time here and I tried the furnace for the first time since last night. The furnace is running as it should. It is a cold but sunny day here in Maryland and the sun must have helped clear the vents. All but one person that had a similar problem yesterday has heat now. Her vent pipe seems to be in the most shaded area of the roofs. It should clear soon. I can cancel the service call that was scheduled for tomorrow.

Again, I would like to thank all that provided the answers and suggestions to our problem.. That alone helped me get some sleep last night.

Thanks again....Genuinely appreciate the professionalism and courteous manner with which I was treated.

Regards,
Mike

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