Gibson KG7SC Furnace Overview

The Gibson KG7SC is a discontinued gas furnace with an efficiency of over 92% AFUE. It was designed for upflow/horizontal installations, with a low boy height designed for low clearance applications. A heavy gauge aluminized tubular heat exchanger improved durability and heat transfer, and a 30-second blower delay at start-up provided warm duct temperature at start-up, with a 30-second post purge which increased the life of the heat exchanger. An integrated control board provided connections for an electronic air cleaner and humidifier, with diagnostics lights to provide fault codes for easy troubleshooting. The KG7SC could be vented horizontally or vertically with either a one- or two-pipe system.

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Consumer Reviews of Gibson KG7SC


  • Very Satisfied
  • Somewhat Satisfied
  • Neutral
  • Somewhat Unsatisfied
  • Very Unsatisfied
  • #3 of 4 Gibson Furnace
  • 20% of customers recommended

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Gibson KG7SC Furnace Reviews


1.0 rating
Very Unsatisfied

From day one, my Gibson furnace has been nothing but problems. I live in a newly constructed house (2017) with a new Gibson furnace, installed by a professional, and from jump street, nothing but problems. I have to keep the top panel gapped, or off, for the furnace to operate in temps of 12F or below. Pressure switches have been replaced to remedy the problem…yet, no remedy…so, the top panel remains gapped just to keep the furnace working. Then today, the fan spins free of the motor, just long enough for the bolt to “turn” the motor shaft… Takes a machinist to fix the issue, just to have heat through the cold days ahead. I’ve owned two houses prior to my new construction home, with new Gibson furnace, and have never had heating issues I experience now… Gibson furnaces are garbage, as far as I’m concerned…never again.

Tidioute, PA

"More issues than the others combined"

1.0 rating
Very Unsatisfied

I have done hvac for about 11 years and the brand of furnaces with the most problems would have to be Gibson. Have had several costumers with ongoing issues. Were on minute it runs and the next it won’t You change all the parts tech support tells you and the furnace still won’t run right. I wouldn’t spend the money or time with this brand.


"Very happy with product."

5.0 rating
Very Satisfied

This furnace came with the house. The house was a foreclosure, so naturally we had some concerns about the furnace. After getting it cleaned and checked, it was 95 percent efficient. And at the time it was only about a year and half old. Have had it now for 5 years and no problems. There are a couple of things here I would like to relay to others. I suggest changing the filter every month or sooner depending on the conditions (such as living near an unpaved road, or how dusty the area is). My point is, check and change the filter as needed. Also we get it cleaned and checked every year. I also want to relay that the efficiency of the furnace should not go down. We are very happy with it, no dislikes. Would buy this brand again.

Bay City, MI

"Refuse warranty because not registered"

1.0 rating
Very Unsatisfied

I have multiple properties and have used Gibson furnaces in every one of them. I had a cracked heat exchanger directly out of the box. ********** **** was the distributor I bought it from. Both Gibson and ********** **** refused to cover the warranty because I did not register the furnace online. My loyalty toward both these companies is done. I’m out a total of $1400 in additional expenses, and I have a busted furnace. No help from the distributor or Gibson. These two companies are horrible. Never ever buy from ********** **** and never ever buy Gibson.

Williamsport, PA

"Biggest piece of junk I’ve ever owned"

1.0 rating
Very Unsatisfied

I bought this furnace about four years ago and have had nothing but problems with it. Within the first week I had it on, I had to get a new squirrel cage put in. I’ve also had to replace numerous other parts during the time that I had it. I haven’t gone through a winter without it going out. Right now I’m waiting on a technician to come out and work on it again. It’s probably going to cost me another $180.00 to $200.00. I would not recommend this or any other product to be purchased from this company.

Fairmont, WV

Other KG7SC Reviews

Among the very few online comments regarding the KG7SC is one from a homeowner on who was having trouble with his unit having gunk in the combustion chamber.

KG7SC Warranty

Product registration is required for maximum warranty coverage. The warranty for the Gibson KG7SC furnace is comprised of the following:

  • 10-year limited all-parts warranty
  • 20-year heat exchanger warranty
  • A 1-year Quality Pledge to the original owner to replace the entire unit if the heat exchanger fails within a year of being installed

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