Furnace Installation
A good furnace listens to the thermostat. When the thermostat calls for heat, the heating system activates and the main gas valve opens releasing gas into the combustion chamber where the gas mixes with air. The gas/air mixture is then ignited and the by-products of the combustion are exhausted into a vent pipe. The heat produced from the burning gas is transferred by the heat exchanger to the air distribution system heating your space.
Replacing your heating system with a high efficiency furnace can provide instant savings because the cost of heating or cooling your home can represent a large percentage of your energy bill. Natural gas furnaces also produce fewer greenhouse gas emissions than any other fossil fuel fired furnace and less carbon dioxide than electric heating.
The major difference between a mid efficiency furnace and a high efficiency furnace is the high efficiency has a second heat exchanger helping to provide even, comfortable heat. Also, the exhaust from a high-efficiency furnace is cool enough that it can be vented through an outside wall with a plastic pipe so that a chimney is not required.