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Choosing an Efficient Gas Furnace Calgary

By: vikram kumar

One of the most important pieces of equipment in every Calgary home is its furnace. A furnace is responsible for keeping every home warm. Calgary’s climate is greatly influenced by the city's elevation and close proximity to the Rocky Mountains. Most of the time, its winters can be uncomfortably cold. Also, as a consequence of Calgary's high elevation and relative dryness, the summer evenings can be very cool.

There are three main choices when looking for a new gas-fired forced air furnace Calgary. Each of these types of gas furnaces work in different ways and have their own advantages. The most energy efficient systems are the modern condensing furnaces. So the best way to choose a particular furnace Calgary would be to base it on how efficient it can heat up the house.

The efficiency of these furnaces is measured using the AFUE or the Annual Fuel Utilization Efficiency, which is also used to rate the efficiency of boilers and heaters. The AFUE rating is the ratio of the amount of fuel that is transformed into heat to the amount of fuel that goes into the furnace.

The three types of gas furnaces people can use in Calgary are the condensing furnace, induced draft furnace, and conventional warm air furnaces. These furnaces burn natural gas in order to produce heat. The heat is then transferred to the various parts of the house using a distribution system of ducts and fans. More air can be pulled from the cool air coming from the house to the furnace to be reheated or used to expel the flue gases through an exhaust.

The conventional warm air furnace uses natural draft, which is air pulled through the gap at the flue and at the front of the furnace. A better way of getting air into the furnace is by using a fan, which the induced draft furnace uses making it more efficient than the conventional warm air furnace. Some of the natural or induced draft is mixed with the exhaust gases and then expelled through a chimney. The problem with using a chimney is that it also expels heat along with the flue gases.

The condensing furnace is specifically designed to make use of the escaping heat by condensing the flue gases with an additional heat exchanger. This provides extra heat for the house making it more efficient than the other two types of furnaces with a 97 percent AUFE rating. Because this type of furnace condenses the escaping heated gases, it does not need a chimney. The flue gases have a relatively low temperature, which makes them easy to release outside the house through a small plastic pipe.

The conventional warm air furnace is the least efficient among the three gas furnace Calgary. Its efficiency drops way below the minimum AFUE rating of 78 percent as it ages. Old conventional warm air furnaces have only 55 percent AFUE rating. Another reason why a conventional warm air furnace is not as efficient as the induced draft furnace is because it uses a standing pilot. Both the induced draft furnace and condensed furnace use an electronic ignition system such as hot surface ignition and intermittent pilot that can be electronically controlled, and is cheaper, and more dependable. The induced draft furnace has 20 percent higher AFUE than the conventional warm air furnace.

Article Source: http://www.articlekingpro.com

Whatever type of furnace Calgary you use, you need to be sure to get in touch with Action Furnace for your needs. Fixing furnace Calgary is their specialty.

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