from Larry in Neenah, WI:
#268
My home builder recommended leaving the pilot light on in my gas fireplace throughout the summer months to ensure that birds and bugs do not set up housekeeping in the flue? Is there a better way?
Consider installing a rain cap on the chimney flue.
Consider installing a rain cap with a bird screen to keep rain water and birds from entering the chimney flue. Look for a flat or curved plate at the very top of the chimney. The rain cap can be viewed from the ground. It is important for the home owner to periodically verify the integrity of the rain cap especially after heavy rains and winds because weakened rain caps can often fail under these conditions. If a rain cap becomes dislodged, rain water can enter the flue and run down into the fireplace, and cause damage or a mal-function. During a rain, if possible, look for water and rust in and about the chimney flue located at the fireplace; if rust is present, this is a sure sign that something is wrong. In addition, a dislodged rain cap can sometimes cause a blockage in the flue which restricts the natural flow of combustion gases (which could contain carbon monoxide) produced by the gas burner in the fireplace. If the flow of flue gases is restricted, they may enter the house depending upon the style of the gas fireplace. If it features operable glass doors, combustion gases may enter the living space through that opening. If it has a sealed face, all products of combustion are considered separate from the living space.
Published Friday, June 26, 2009