Help with outside air kit for harman

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Zackwbutler

New Member
Feb 7, 2021
20
New York
I recently bought a refurbished harman p61 from a local dealer. They sold me a icc thimble kit that has built in fresh air hookup. The fresh air hook up is 3” with 3” piping but the harman is 2 1/2 ish or so. I can’t figure out how to hook this up
 

DAKSY

Full Time RVer
Staff member
Dec 2, 2008
9,215
Wherever we're parked
Don't know where in NY you are, but Best Fire in Troy sells a Harman Adapter for that connection.
(518)687-2388
 

Washed-Up

Minister of Fire
Nov 5, 2011
883
Kananaskis,Alberta, Canada
Pick up a 2 1/2” to 3” car exhaust adapter, Pet Boys etc, it’ll bolt right on with a worm clamp
 

Washed-Up

Minister of Fire
Nov 5, 2011
883
Kananaskis,Alberta, Canada
On my p61A, I slipped it on to make sure it fit, then took my grinder with a cutting wheel and made a 1”slit 180 degrees from each other, then used a worm clamp to attach it to the stove
 

Zackwbutler

New Member
Feb 7, 2021
20
New York
On my p61A, I slipped it on to make sure it fit, then took my grinder with a cutting wheel and made a 1”slit 180 degrees from each other, then used a worm clamp to attach it to the stove
Thank you for that! I think that’s the route I’m going. I’ll pick it up tomorrow. You just cut a straight line down one inch on two spots? Just so the clamp can compress the pipe?
 
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Washed-Up

Minister of Fire
Nov 5, 2011
883
Kananaskis,Alberta, Canada
Yes, directly across from each other, it gives enough room to make a good seal when you clamp it.
 
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Zackwbutler

New Member
Feb 7, 2021
20
New York
Yes, directly across from each other, it gives enough room to make a good seal when you clamp it.
The adapter wouldn’t fit over my fresh air inlet sticking out of the back of the stove. So I slit it like you said and bent it in a little. Pounded it into the piece off the back of the stove, then self tapping screwed them together. I don’t like it so I’m searching for another alternative.
 
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Washed-Up

Minister of Fire
Nov 5, 2011
883
Kananaskis,Alberta, Canada
Did you get a 2” OD or a 2” ID, maybe a 2 1/4” adapter then? You may need to measure the outside diameter (OD) of your intake pipe and go from there.
 

Washed-Up

Minister of Fire
Nov 5, 2011
883
Kananaskis,Alberta, Canada
Odd that it didn’t fit, my apologies. If you measure the diameter with a caliper or best you can with a measuring tape, that will give you the proper ID of 2? To 3” adapter