Forced Air Heating and Cooling Systems



What is Forced Air Heating? A forced-air heating system utilizes a strong, specially designed blower fan to rapidly draw warm air out of your house and propel it past a pre-heated heating source, usually the heat exchanger on a gas furnace or, more rarely, an electric furnace’s heating coils. These systems work best when the outside temperature is cold and you simply want to bring in warmer air before you turn on your central air conditioning unit for the day. In these cases, the blower fan is used primarily to speed the warm air out of the house while simultaneously cooling it back.



Heat pump vs coolant pump

Heat pump vs coolant pump
Heat pump vs coolant pump

In most cases, this type of forced air heating system operates with the aid of a separate heat pump, much like your car’s coolant system. This coolant pump usually comes with its own electrical motor and compressor but is sometimes required to be connected to your existing furnace through wiring. The heat pump will draw in cooler air (usually in a closed-ended duct system) via a cooling fan, and then send it into the house through vents or ductwork. Most homes have their heat pump located in the attic (on top of the furnace) or directly below (on the opposite side of the furnace). Because the air in your house is usually warmer than the air outside (which means that your system will work better when it is operating at a lower temperature), the warm air drawn in by the heat pump will naturally be cooled and circulated through your home. The blower fan merely makes this process takes place at a faster rate than it would on its own.

Costs and running costs

Costs and running costs
Costs and running costs

In addition to the typical benefits of forced air heating systems, there are other less common benefits as well. If your furnace isn’t frequently used (and not because it is “expensive” to run), then it may not be making enough hot air to adequately cool your home. If that is the case, then it may be time to upgrade your furnace. It is also possible that if your furnace is very old, that it isn’t drawing enough air into the home to make it efficient. This can cause your furnace to work harder and cost you more money in running costs.

There are several different types of forced-air heating systems. You can choose a boiler, furnace, or water heater. Boilers are the most popular due to their relatively low cost and long life. Furnaces are more efficient and typically require a little bit more maintenance. Water heaters use natural gas or propane to generate heat, but their efficiency and low life may make them inappropriate for some locations. It is important to understand how each of these systems works to decide which one is best for you.



While a forced air heating system does require regular maintenance, many people like the fact that they are much more affordable than other furnaces. If you do choose to hire a professional, be sure to ask him about his company’s routine and how often he will change out the air filter. This should be a fairly common practice, and he should tell you how often this happens and when.

Changing the filter

Changing the filter
Changing the filter

When changing your filter, be sure to place the new one in the same location as the old one. This ensures an even flow of air throughout the ductwork. Also check the return ducts to ensure that they are properly attached. You should have the unit checked periodically by a certified HVAC specialist to ensure that all of the components are working properly. Many forced air heating systems do require periodic overhauling, so making sure you get someone who knows what he is doing will help to keep your equipment operating efficiently.

Another option for forced air heating is to use a cool air source. These units do not involve any mechanical action on the air, so they tend to be more efficient overall. However, these cool air source units do come with different types of hardware that must be installed in order to work properly. It is important to work with a professional installer when using one of these cool air units.



If you are considering installing a forced air heating system in your home, be sure to keep these important things in mind. First, it is important to have the right size ducts installed so that your system will be able to keep the proper temperature. Next, a good HVAC installer will inspect your ducts to make sure that they are not leaking. Finally, make sure that you have access to a separate cooling duct, because a central air conditioning installation can be quite messy.



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