Is it time to consider furnace replacement?
According to Energy Star, certain telltale signs indicate it's time to call a professional about making a change if:
Your furnace or boiler is 15 years old
Your furnace needs an expensive repair
Your energy bill has gone up
Some rooms are too hot or cold
Your home has humidity problems
Indoor air quality in your home is poor
Your system is noisy
Energy Star tips to find a quality contractor
Expect a home inspection - The contractor should spend significant time inspecting your current system and home to assess your needs. A bigger system isn't always better; a contractor should calculate your heat loss and size the heating system based on the size of your house, level of insulation, and windows.
Get a written proposal - The exact cost, energy efficiency, installation details and warranty should also be included. The lowest price may not be the best deal in the long run, if it's not the most efficient, your energy costs will be higher.
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