All furnaces are rated by theirAnnual Fuel Utilization Efficiency (AFUE). AFUE represents the amount of heat produced per dollar spent on fuel. For example, a furnace with an efficiency rating of 85% indicates that heat is generated from 85% of the fuel that is burnt. Therefore,a furnace with higher efficiency rating will be able to deliver heat by consuming much lesser fuel and energy. Although these furnaces will cost more, they will be cost efficient in the long run. Today the minimum AFUE rating is around 78% and goes up to as high as 97%.
Choosing the right sized furnace is also important. It is generally believed that a bigger furnace is better than a small one, however that is not the case under varied circumstances. A furnace that is too large for your home will waste more energy than required, and increase the cost of heating. Not only that, you may end up having certain parts of your house too hot or humid. On the contrary, choosing a furnace that is too small may lead to lack of heating. A small furnace may need to work harder to provide consistent heat everywhere, increasing your electricity bill. An HVAC contractor will be able to guide you properly.
Another important point to consider is the location of your furnace. Depending on how your house is constructed, an HVAC contractor will evaluate your whole house and accordingly he will advise you the most appropriate place to install your new furnace.
Fuel and Economy
How you power your furnace will hugely affect your expenditures. Natural gasses are very common today, because they are widely available, clean and inexpensive. Oil, LP (liquid propane) gas, electricity and wood, are other options of fueling your furnace, but cost slightly more than natural gases.
Choosing a professional HVAC contractor
Make sure you contact the right technician for the selection and installation process of your furnace. Getting the job done through an unprofessional could result into inappropriate installation and hence you may have to repair and service your HVAC system every now and then. A certified and an insured contractor will charge you merely for his professional and quality work.
Make an informed decision. Weigh your budget against long-term considerations.Get expert advice so that you don’t regret later.