hi all.i hav a 2 flue chimney,one for the fire place and one for the venting of my hot water heater which is natural gas.iput in a pellet stove on the other end of the house 3 years ago and dont realy use the fireplace much anymore.we put a cap on chimney maybe 2 yrs ago just to keep birds out.(had uninvited guests in my house twice).whenever i burn a fire i get a very strong smoke smell in my basement.someone suggested taking the alluminum cap off cause the smoke is rising up,billowing around the cap and possibly being sucked back down the flue designated to the water heater.
any input greatly appreciated
any input greatly appreciated