When people think of furnaces, they often think of big, noisy contraptions that cost a lot of money to run and maintain. The truth is that today’s new high-efficiency furnaces can save a homeowner up to 50 percent in operating costs over a ten-year-old furnace. Many 1990 and earlier model furnaces have Annual Fuel Utilization Efficiency (AFUE) ratings of 65 percent or less. Compare that to today, when the minimum AFUE for any furnace sold in the United States is 80 percent (many top-line models even go up to nearly 97 percent). In short, today’s furnaces are not like your grandfather’s furnace. They’re energy-efficient, cost-effective and, with the proper maintenance, can have very long life spans.
What types of furnaces are available?
There are several different types of furnaces available today. Two of the most popular are:
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Central warm-air furnace
Central warm-air furnaces rely on gas, fuel oil or electricity to heat a home. The furnace is typically housed in a central location within the house and disburses warm air through a series of ducts. These types of furnaces are usually either forced air (which, as the name suggests, forces air through the ducts) or gravity furnaces, which uses gravity to circulate air (cold air descends through the ducts and into the furnace, where it is reheated and then distributed).
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Steam or hot water system
The water you hear gurgling through a radiator? That’s coming from a steam or hot water furnace. These centralized systems heat an area by supplying steam or hot water through a radiator, pipes, heating coils and other distribution methods.

What are some of the benefits of furnaces?
- Higher AFUE rated furnaces can significantly reduce homeowners’ gas bills
- Many furnaces boast variable and multi-speed features that can provide enhanced indoor comfort by slowly ramping-up to a desired thermostat setting rather than turning on at full speed. This dramatically reduces system noise and dissipates the amount of cold air sitting below warm air – a problem typically associated with single-speed furnaces.
The expert technicians have been installing and servicing all types of furnaces for many, many years. If your furnace needs a tune-up—or if you are in the market for a new one altogether—contact us. We’ll be happy to help.




Completely Satisfied: To take advantage of the tax incentives, I decided to replace my main floor HVAC/heat pump earlier this year. 72 Degrees was by far the most professional and thorough of the 4 contractors I interviewed. Quoted price was fair and included everything I wanted and nothing I didn't...
Outstanding customer service is always worth it's weight in gold if you ask me. Had our home heat pump go belly up. The guys from 72 Degrees came out and gave me what I feel was an honest assessment of the problem. Heat pump DOA… I DID NOT shop around and I usually give myself all the time I need for a purchase this large. This is how impressed I was with the salesman, his professionalism and over knowledge of his product...
Outstanding Company. I would give them a 6 if I could. They were very prompt in getting to the job, as a matter-of-fact, they called and asked if it was alright for them to come 2 hours ahead of schedule. This was "NOT" a problem for me. The tech was friendly and knew what he doing. He offered me options that no other service provider offered. He was done in about an hour and I had my system working again. I would recommend these guys any day of the week.
Courteous, Professional, Company with fast response time. I have been using 72 degrees for over a year now and every time I call they are right there. Their technicians are courteous, and professional and very knowledgeable about any issue that you may have.
Member Comments: Everyone I interacted with was very professional as well as friendly. There were other groups that I looked at that were less expensive, but 72 has the BEST warranties out of the service providers I looked into. I know they stand behind it as well. One of my friends used them and had an issue after installation; he told me the fix was taken care of immediately, and the president of the company came out to make sure he was satisfied. These folks stand behind their name and that means a lot to me.
72 deg. replaced my heating/cooling system. They were always on time , They called me to tell me when they would be working. The replacement was done very fast… 72 deg. had the right tools, manpower, and equipment to provide and install my new heating/cooling system. The front office worked hand in hand with the field crews to provide a super job "Well Done."




