The furnace heating process is a model of simplicity and efficiency. When the thermostat threshold setting is triggered, a relay closes and activates an inducer fan. The volume of air flow increases until it is suitable for combustion. A valve automatically opens, and a measured amount of gas or heating oil is ignited by the ignition system.
As the fuel burns, it begins to heat an aluminized steel heat exchanger. At a specific temperature, the blower engages and draws indoor air across the heated surface. This process warms the air, which is subsequently forced through the air distribution network into the living area.
The useful service life of a typical mid-level furnace is dependent on several factors including accumulated runtime hours, unit build quality and adherence to a strict maintenance schedule. Maintenance can help you avoid any surprise costs with furnace repair, Oakville. In general, the lifecycle of a gas furnace is usually 12-15 years.
Furnace components are relatively inexpensive, and NATE certified technicians are trained to restore malfunctioning units to full working order. When a furnace completely fails, it is usually the result of stress cracks in the heat exchanger caused by the repeated expansion and contraction of the metal during the burn process. Furnaces with a faulty heat exchanger must be replaced immediately since poisonous carbon monoxide can enter the living area.
A central heating appliance represents a significant investment in warm, indoor comfort. There are a number of important practices that will help extend the service life of your equipment while also lowering annual heating fuel costs.
Today’s furnaces are built to provide reliable service through many heating seasons. With proper maintenance, your furnace system will continue to keep the indoor environment, comfortable, healthy and energy efficient.