Forced air heating is a method of indoor heating that is often utilized in buildings. Radiant floors and forced air heating is quite popular and offers significant design flexibility for any space. Forced air heating and ventilation is often integrated into the design of new projects and is quite common and incorporated into many older homes. Between forced air heating and cooling and radiated heat, there are quite a world of difference and the choice between the two can be of extreme importance to the longevity and comfort of an installation.
The basic working principle of forced air heating and cooling systems is a forced air stream is provided through ductwork to an outdoor radiator or fan. When the temperature outside falls, the air is forced to become colder as it enters the building. The heated air is directed to a specific location where it warms as it passes through the home. The location of the radiator is often chosen to best suit the desired temperature levels and desired levels of air conditioning.
The principles of forced air heating and cooling systems work on forced air pumps. Air passes through an air handler, where a pump motor is located. Air is blown through the pump’s rotor blade by a compressor which then forces the warmer air through the system. A variety of pumps exist including counter-current, rotary screw, or pneumatic pumps.
Air Conditioning Units
Air conditioning systems are forced air systems that use Freon refrigerant to provide cooling air at specified temperatures. The system uses three primary components; an air conditioner, condenser, and a compressor or cooler. The installation costs of these components will depend on the size and style of the unit purchased. Air conditioners can be single stage, multiple stages, or a combination of single and multiple stages.
The ductwork carries the heat from the furnace or heat pump and sends it into the rooms. There are two types of ductwork; traditional and box ducts. Box ducts use ducts that are connected to a central location for the filtering and dispatching of waste air. The traditional ductwork has three sections; the start up section, the supply section, and the return section. The installation costs of forced air systems are dependent upon the size and layout of the system and whether the ducts are part of the furnace or part of the cooling system.
Heating Air Filters and Air Ducts
Forced heating and air conditioning systems require air filters and ducts for optimum performance. The size of the filter and duct depends on the size of the fan or blower. For forced air systems to work at their best use high efficiency HEPA filters. HEPA filters can be replaced with less expensive air filters once they have been installed. High efficiency air filters can save energy and money in the long run.
Air conditioning systems are also an option for forced air heat and cool systems. These systems are considered an on-floor heating system because they use a forced air heating system to produce the cool air on the floor of the facility. An in-floor heating system produces warm air that rises through ductwork and into the building or a room.
Gravity Air Furnace
Forced air systems heat or cool air using gravity. Gravity air furnace functions by circulating air over a heating coil and producing heat or cold air. This type of system does not require fans or blowers and is the most energy efficient. In order to regulate the temperature of the air, a gravity air furnace has an air control switch or thermostat. This thermostat is linked to a control panel, which is located on or near the ceiling of each room. The control panel helps the user to adjust the temperature of the air.
There are many benefits of installing energy efficient heating and cooling systems in your home, office or building. The most obvious benefit is that the energy costs to operate the system will be considerably lower than with traditional furnace or air conditioning units. In the summer, the sun is out much more often making the air conditioner work harder to keep the temperature constant. In addition, in the winter, with the heat and humidity so high, it becomes very cold even on the lowest temperatures outside.