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How does a central heating/cooling system work?

Central heating and central cooling systems are separate things but they are matched to work together. Here's how.

Central Cooling 
The most common central cooling system is a split system, which includes an outdoor cabinet containing a condenser coil and compressor, and an indoor evaporator coil, usually installed in conjunction with your furnace or air handler. The compressor pumps a chemical called refrigerant through the system. 

How It Works 
Once warm air inside your home blows across the indoor evaporator coil, its heat energy transfers to the refrigerant inside the coil. That transfer, in turn, "cools" the air. The refrigerant is pumped back to the compressor where the cycle begins again. The heat absorbed by the refrigerant is moved outside your home while cooled air is blown inside. Moisture that contributes to humidity is also condensed out of the air. 

Your cooling system is usually combined with your central heating system because they share the same ductwork for distributing conditioned air throughout your home. 

Central Heating 
Central heating systems have a primary heating appliance, such as a furnace, typically located in your basement or garage. All furnaces consist of four main components: 1) burners that deliver and burn fuel, 2) heat exchangers, 3) a blower and 4) a flue that acts as an exhaust for gaseous by-products. Depending on your situation, region and needs, you can choose from heating systems running on either gas or oil as fuel, or a hybrid packaged system that can use both fuel types. 

How It Works 
Combustion gases are generated by the burners in your furnace and passed through a heat exchanger. Air from your home blows across the heat exchanger to be warmed. It is then blown through a system of ducts to distribute around your home. During warm seasons your heating system works with your central air conditioning. Air is cooled as it's blown over your air conditioning unit's cooling coil, often attached to the air circulating fan of the furnace, and then sent through the same air ducts throughout your home.

Trane

Trane


 
  

GC Heating and Cooling NJ

GC Heating and Cooling is proud to be a, providing indoor air comfort for both residential and commercial customers in Central New Jersey.

We service all types of systems including: LENNOX, CARRIER, TRANE, RHEEM, RUDD, SANYO, WEIL-MCLAIN, YORK, UNICO/MITSUBISHI, FUJITSU, REZNOR, and GOODMAN.

For any questions please contact our office