The air moving away from the furnace has to be replaced.
The purpose of a cold air return in a basement is to circulate air, allowing for proper ventilation and maintaining a comfortable temperature throughout the space.
The purpose of a basement cold air return in a heating and cooling system is to circulate and return cold air from the basement back to the furnace or air conditioner for re-heating or re-cooling. This helps maintain a balanced temperature throughout the home and improves the overall efficiency of the system.
The purpose of a cold air return in the basement is to circulate air back to the furnace for heating or cooling. It helps maintain proper air flow and temperature balance throughout the home by allowing the return of cold air to be reheated or cooled, contributing to the overall ventilation system's efficiency and effectiveness.
You will hear air circulating in the cold air return (or return air grille) when the heater or air conditioner is running.
You do not need cold air returns in every room. Normally your warm air registers are close to your outside walls, your cold air returns which are much larger are placed in the center of your house . There may be one or more cold air return depending on the size and layout of your home.
None. Probably the home was built for forced air and converted to boiler/baseboard heating.
Cold air return vents are the ones on the wall
A cold air return is similar to a return air grille, which is needed for air to travel to the furnace to be filtered, heated OR cooled and then recirculated.
is your fan running in the correct direction? are any of your ducts blocked?
It is never a good idea to restrict or block a cold air return.
YES! If you do not have a cold air return on your furnace, you will have much higher heating bills as you will not be circulating the cold air from your home back to the furmace to be heated again.
Probably not. The issue is that your furnace needs several cold air returns thru the house to work efficiently and avoid damage to the furnace.