Cold spots in your house can be one of the most aggravating aspects of winter in our part of the country. A cold spot is an area of the house that is noticeably colder than the rest of your home. A couple of things can cause the phenomenon,
First, you might have the wrong furnace for a house of your size. The furnace may just not be strong enough to push warm air through every part of your home, leaving cold spots. Turning up the thermostat will not help but will just increase your heating bills and make parts of your house uncomfortably warm.
Second, a more common cause of cold spots is damaged or malfunctioning vents. If vents have holes or cracks in them, cold air might be coming into your rooms along with the heated air from your furnace. Also, a buildup of dust may cause the vents to be partially blocked, not allowing the heated air to circulate freely,
Finally, if you have recently added a room to your home, the expanded volume may have caused the furnace, which was adequate before the addition, to not be able to heat the entire house.
What can you do to prevent cold spots?
Before you buy the house, you should have a trained HVAC technician inspect its heating system to ascertain its efficiency and its tendency to leave cold spots. You should also have a similar inspection during the fall months before winter sets in. If anything is amiss, the technician can recommend fixes.
If you notice that your house has developed cold spots, it is time to call in a professional. Fixing broken or blocked vents and replacing a furnace are not suitable jobs for a do-it-yourselfer. A professional HVAC technician will be able to find the source of the problem and offer a solution that will rid your house of those uncomfortable cold spots.