October 12th, 2013 11:00 AM by Dan Howard
There is common serious problem that you probably have not heard about and is often ignored by heating professionals. You should hire a furnace technician who will look at ALL of the gas appliances in the home. High efficiency furnaces can cause an intermittent problem of a furnace pulling carbon monoxide back into a home from other gas appliances such as gas clothes dryers, hot water tanks and fireplaces. If you occasional smell the odor of natural gas or experience headaches, you probably have that problem. Return air ducts that are installed too close to these appliances can also cause the same problems.