Sealing Keystoker exhaust motor to exhaust pipe?

Sealing Keystoker exhaust motor to exhaust pipe?

PostBy: pwlnyranlny On: Sun Oct 27, 2013 7:55 pm

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pic of exhaust motor to vent pipe after removed previous sealant
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Greetings all, I'm seeking advice and expertise on putting my parts back together after cleaning. I'm new homeowner with a previously installed Keystoker 90/105 direct vent stove. I believe well taken care of, but trying to do my due diligence for good cleaning prior to this season. Taking it one thing at a time. First, was removing the exhaust motor to clean/vacuum it out (had lots to get rid of so glad I did!).

When i removed the exhaust motor it had soft, rubbery-type sealant both outside (black) and inside (red). I found supply from previous owner of Rutland "Seal It Right" (black) which I figure is for the outside seal. Correct? But cannot ascertain what was used for inside seal. ?? Also, not exactly sure how I would even get inside to add that inner seal yet. Advice on technique is appreciated? i.e. Am I going to have to disconnect vent pipe from bottom, and unhook top direct vent which feeds into my home duct work, and pull stove out to get inside to apply the inner sealant?

Attached pics are of the exhaust motor to direct vent exhaust pipe and the rubbery-type material I had pulled out from inside when removed the motor.

I confess to being a newbie and apologize in advance for any bad protocol on this forum. I learn quickly however so please don't be shy telling me.
While extremely nervous about screwing something up, I'm eager and interested in learning all I can. I haven't been able to find any reputable local service help, person, company ANYWHERE nearby. I would not mind paying for expertise to learn but so far no luck. If anyone has leads in Dutchess County, NY area, please pass on!!

Qs: What type of sealant do I need to use for inside seal?
And, expert advice on technique of how the heck I am supposed to apply the inner sealant? Will I have to remove the band clamp fastening the 4-inch steel vent pipe to the black 6-inch DV exhaust pipe, move the stove out, and then apply?

If other pics would be helpful, I can add.

Many thanks in advance!!

Ran
Attachments
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removed old inner red sealant
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pwlnyranlny
 
Hot Air Coal Stoker Stove: Keystoker 90/105 Stoker Stove
Coal Size/Type: Rice coal
Stove/Furnace Make: Keystoker
Stove/Furnace Model: Keystoker 90/105 Stoker Stove

Re: Sealing Keystoker exhaust motor to exhaust pipe?

PostBy: McGiever On: Sun Oct 27, 2013 8:04 pm

Where's ole *GetRdone*??...he just did one of these models.
McGiever
 
Stoker Coal Boiler: AXEMAN-ANDERSON 130 "1959"
Hot Air Coal Stoker Stove: HARMAN MAGNUM
Hand Fed Coal Stove: RADIANT HOME AIR BLAST
Baseburners & Antiques: OUR GLENWOOD 111 BASEBURNER "1908"
Coal Size/Type: PEA / ANTHRACITE, NUT-STOVE / ANTHRACITE
Other Heating: Ground Source Heat Pump
Stove/Furnace Make: Hydro Heat /Mega Tek

Re: Sealing Keystoker exhaust motor to exhaust pipe?

PostBy: CoaLen On: Mon Oct 28, 2013 6:21 am

The best way I found is to take the pipe the fan assembly is mounted to off the furnace so you can caulk it from the inside and around the outside. That's the way keystoker does it.
CoaLen
 
Hot Air Coal Stoker Furnace: Keystoker Koker
Coal Size/Type: rice

Visit Lehigh Anthracite

Re: Sealing Keystoker exhaust motor to exhaust pipe?

PostBy: VigIIPeaBurner On: Mon Oct 28, 2013 6:52 am

pwlnyranlny wrote:8< ... When i removed the exhaust motor it had soft, rubbery-type sealant both outside (black) and inside (red). ...>8...


There are two silicone sealants used. The red is a high temperature. I'm not sure of the black, I'm use to seeing a gray sealant on the outside pipe seams. Silicone caulk is what you need because it has to stay flexible. The hard cement can break up under vibration from the exhaust motor and come loose.

Check you CO alarms too!
VigIIPeaBurner
 
Hot Air Coal Stoker Furnace: Keystoker Koker
Hand Fed Coal Stove: Vermont Casting Vigilant II 2310
Other Heating: #2 Oil Furnace

Re: Sealing Keystoker exhaust motor to exhaust pipe?

PostBy: pwlnyranlny On: Mon Oct 28, 2013 10:09 pm

Thanks CoaLen and VigIIPeaBurner!

So, here's my rear setup. as you can see, not much rear room there to get behind.
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Rear direct vent setup (closeup)
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I'm thinking even if I remove the band clamp connecting flue pipe (steel) to the direct vent (black) i'm gonna have to move the stove out from current position enough to be able to get access. Which means disconnecting the top hot air vent duct as well. ??
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Rear view setup (profile)
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For sealants: decided on... any objections?
pwlnyranlny
 
Hot Air Coal Stoker Stove: Keystoker 90/105 Stoker Stove
Coal Size/Type: Rice coal
Stove/Furnace Make: Keystoker
Stove/Furnace Model: Keystoker 90/105 Stoker Stove

Visit Lehigh Anthracite