HVAC Information

HVAC Resources
 FAQs
 Air Conditioning
 Indoor Air Quality
 Glossary

Telephone: 334.340.1111
Toll Free: 888.497.6247
E-mail: info@bobwoodall.com

Bob's Blog


HVAC

Our website is packed with all sorts of information on home heating, air conditioning, ventilation and indoor air quality.

This portion of the site contains background information on our business, some frequently asked questions, an explanation of HVAC terms, and information on how you can save energy costs.

How Does It Work?

Air Conditioning

An air conditioner seems as if it cools your home's air, but it actually makes your home less warm by removing heat from the indoor air and transferring that heat to the outdoor air.

Heat is extracted from the home by passing indoor air across a refrigerant coil in the indoor unit. Refrigerant lines then carry the heat to the outdoor unit, where it is released into the outside air. The cooling cycle continues until the indoor temperature reaches the thermostat setting.

Today’s central air conditioning units are part of the entire heating, cooling and ventilation systems for your home or commercial building. Air is ventilated and filtered through the buildings duct work and the temperature control unit automatically decides when the A/C should turn on to cool the air down or the furnace to turn on to warm it up.

Heat Pump

A heat pump is an all-in-one heating and air conditioning system that works year-round to keep you comfortable.

During warmer months, a heat pump works as a normal air conditioner. It extracts heat from inside the home and transfers it to the outdoor air. In colder weather, however, the process reverses—the unit collects heat from the outdoor air and transferring it inside your home.

Even when the air outside feels extremely cold, the air still contains some heat. The heat pump pulls the heat from this cold outdoor air and sends it inside to warm your home. When there's not enough heat in the outside air to meet the demand of the thermostat setting, an electric heater supplements the outdoor air to warm the home. Extremely efficient, this process produces two to three times more heat than the energy it uses.

Also, a heat pump can be an effective add-on option to use in conjunction with an existing gas furnace. With this dual-fuel option, the two systems share the heating load, but never function at the same time. Each system operates when it is most cost effective. The heat pump will be the primary heating and cooling system. However, when the temperature drops below the heat pump's ability to operate as efficiently as the gas furnace, the gas furnace will take over until the temperature rises enough for the heat pump to operate more efficiently.

Air Quality

Poor ventilation and the release of contaminants from different sources inside and outside the home are the main causes of bad air. High humidity can aggravate the problem, causing contaminants to multiply.

Fortunately, industry-leading products like air purifiers and dehumidifiers, working together with your heating and cooling system, make it possible to get rid of bad air for good.

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