We have a home that has a gas firplace in the basement and a wood burning fireplace on the upper floor. When we start a fire in the upper fp we smell smoke downstairs. There's no damper on the gas one downstairs. The gas one has a pipe that goes up the brick work to the outside. We noticed this smell got worse after we installed a chimney cap for the wood fp. So does some of the smoke go down the pipe of our basement gas fp? If that's the case what can we do to prevent this?
Thanks JaKe Seattle