Furnace efficiency indicates the level of energy needed to provide the heating output required. The greater the number, the more energy efficiency the unit is and and the lower your utility bills will be. Keep in mind that you should consider units with higher AFUE (Annual Fuel Utilization Efficiency) to achieve greater equipment efficiency. AFUE measures the amount of fuel entering a furnace that is converted to heat vs. the amount of fuel lost where 90% is converted to heat and the other 10% is fuel lost. It helps you understand how effective your gas furnace is, at converting fuel to heat. Older models are can be as low as 50-70%, indicating that 50-30% of energy consumed by your furnace is lost and will not be converted to heat for your home. This means higher utility bills, increased maintenance and more frequent repairs.

It’s time for you to know which one is the perfect size for your home in winter season. Finding the right-sized gas furnace for your home can be a big problem. Furnace’s size will strongly affect how comfortable you will be, how efficient the furnace will run and how long the furnace lasts. There are furnaces that are too small and too large. If a furnace is too small, you won’t feel comfortable on very cold days and the furnace will run constantly running up your energy bill. While too large furnace, will hurt the furnace’s energy efficiency, lower the lifespan of the furnace and leaves you uncomfortable. One of the biggest factors is the size and number of levels in your home, followed by the amount and type of insulation, number windows and doors along with the direction of your home can all contribute the size you will need. Typical home furnaces sizes range from 40,000-120,000 BTU.

Of all the parts of a furnace, the most essential part is the burner. It is the point in which a mixture of air and fuel is burned to produce heat. A furnace burner is usually lit by a pilot flame, which itself is lit by an electrical spark, similar to how a spark plug works in a car engine. Some older models were lit by hand, though these have almost all been phased out because of the obvious risks involved. A furnace burner may include a pre-mixer to mix the fuel with the air prior to entering the burner for better combustion.

Energy star will serves as your guide to furnaces that earn the highest ratings for energy efficiency. Energy star program has boosted the adoption of energy efficient products, practices, and services through valuable partnership, objective measurement tools, and consumer education. Energy star products has a valid certification that it is certified and tested for its use. Energy star continues to deliver cost-effective and high-quality energy efficiency products. The most energy-efficient furnaces have an Energy Star label and an AFUE rating of 95% or higher. Only furnaces with exceptional energy efficiency earn the Energy Star label.

A home’s furnace takes a lot of abuse during the cold winter season. Components such as the blower motor must be in constant motion while warming the house. Over time, the furnace blower motor can become internally worn from age and lack of lubrication, causing a major reduction in warm air movement through the home’s ductwork.

When you choose reliable products, you also have to get dependable warranty coverage to protect your family’s investments. The warranty depends upon your model. Certain components within the system may have different standard warranty periods.

Furnaces that consume fuel (Natural Gas) that are highly explosive and produce a variety of harmful exhaust gases from fuel combustion, such as carbon monoxide. Be sure that any technician servicing or replacing your gas furnace is TSSA licensed.