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[DBeleskey]

I have a Polar G2 furnace. I have the chimney pipe that came with the stove installed (2 foot length). I find that most times when stoking the furnace I get over run with smoke. The chimney cap tends to blow the smoke down to the top of the furnace but, I like the cap on to keep the rain and snow out when the furnace fan is off.

I was thinking of adding a length of pipe, maybe three feet, to what is there to get the smoke a bit higher above the furnace. Is it advisable to do this or will it affect by burn or cause any other issues  .

[mlappin]

Generally, not alway though, adding stack will increase draw, as long as your door seals are good and the damper shuts tight shouldn’t be an issue.

[DBeleskey]

Thanks
I even thought about a foot or maybe two. The reason I thought three feet was the price difference is minimal and I could always just remove the original two foot piece and leave the three foot piece ending up just adding a foot in total.

Just thinking....don't want to cause any issues. The furnace works great except for the odd bit of smoke every once in a while...