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Model # KG7SC108D-45D

Internet # 203796496

92.1 Percent AFUE 108,000 BTU Upflow/Horizontal Residential Gas Furnace

This item has been discontinued.
The Home Depot no longer carries this specific product.

$1,523.93 /each

  • This natural gas furnace comes assembled for safe installation
  • Product sold without installation or permitting
  • Equipment should be sized/installed by a qualified professional


Model # KG7SC108D-45D

Internet # 203796496

Ideal for new or replacement residential or commercial installations. The 108,000 BTU Input KG7SC Series 92.1 percent efficiency residential gas furnace has a 34 1/2 in. tall cabinet and is designed for installation in up-flow and horizontal applications. This single stage, high efficiency furnace is natural gas ready and convertible to propane (LP Gas) with the optional GLP 028 conversion kit. All KG7SC furnaces are certified for Category IV venting and may be vented either through a side wall or roof applications using approved plastic as allowed by the National Fuel Gas Code. Features an electronic hot surface igniter for increased safety and efficiency, and adjustable 4 speed maintenance free direct drive blower that never needs lubrication, and self diagnostic control module to monitor operation. The primary heat exchanger is constructed of tubular aluminized steel and has a stainless steel secondary heat exchanger. Units are factory assembled, wired and tested to assure safe dependable and economic installation and operation. NOTE: Requires 1/2 in. input to gas valve, dedicated circuit breaker, and 120-Volt wiring with proper polarity and ground. Consumer in required to register the product within 60 days of installation to qualify for the extended 10 years parts warranty and limited lifetime heat exchanger warranty. Dimensions: 34.5 in. H x 24.5in. W x 28 in. D. Not certified for mobile home use.

  • 100 Percent fired and tested on the manufacturing line to assure proper and efficient operation upon installation
  • 30 second blower delay at start-up assures warm duct temperature at call for heat; adjustable blower off settings of 60, 90, 120, and 180 seconds
  • Color coded wire harness designed to fit the components, all with quick-connect fitting for ease of service and replacement
  • Flexible category IV venting system may be vertically or horizontally vented using either a one-pipe or two-pipe system for maximum flexibility in installation
  • Tubular aluminized steel primary heat exchanger and stainless steel secondary heat exchanger assures a long life
  • Multi-speed direct drive blower motor is designed to a wide range of cooling capacities; switches on control board provide easy blower speed selection
  • Self-diagnostic control board assures proper and safe operation and simplifies troubleshooting
  • Two piece door design with captured screws hold door secure and prevents losing door screws
  • Natural gas ready and may be converted in the field to LP using the optional GLP 028 conversion kit
  • BTU input of 108,000 and 99,000 BTU output
  • Hot surface igniter for safe and efficient operation
  • To qualify for the extended 10 years parts warranty, the equipment must be registered online at within 60 days of installation for replacement or 60 days after closing on a new home construction. Some states do not require registration, but proof of installation is required to qualify for the 10 years parts warranty
  • Equipment should be sized, selected and installed by a qualified professional to ensure proper installation, safe operation, adherence to federal, state and local codes and for valid warranty. See installation guide for more details.
  • Professional Installation recommended
  • Click here for more information

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Annual Fuel Utilization Efficiency (AFUE) (%) 
Energy Consumption (kWh/year) 
Fuel Gauge 
Gas or Electric 
Heat rating (BTU/hour) 
Heating Product Type 
Forced Air Furnace 
Heating Technology Type 
Number of Blower Speeds 
4 or More 
Power/Fuel Type 
Natural Gas 
Product Weight (lb.) 
150 lb 
Warranty / Certifications
Certifications and Listings 
CSA Listed 
ENERGY STAR Certified 
Manufacturer Warranty 
10 Years on parts / Limited Lifetime on heat exchanger 


Rated 4.0 out of 5 by 4 reviewers.
Rated 5.0 out of 5.0 by High Quality engineering/construction I installed this myself but do not recommend this for the average DIYer. I have HVAC service/installation experience. Very well made furnace with easy to make service connects. Instructions are complete for installation as well as operation and the self diagnostic features while not needed so far appear to be more than adequate for the sophistication of the control circuit. Has taps on the circuit board for central Humidifier and electronic air filter which is a help keeping the wiring clean/uncluttered. Also has slide switches on the board to adjust fan speeds for heating and cooling modes - very easy to adjust temperature rise/air flow/pressure drop. Unit starts up, runs and shuts down flawlessly and is very quite. Looking forward to a long service life and energy savings! November 3, 2013
Rated 1.0 out of 5.0 by Less than 4 months old and problems! Sure the price was right but this furnace was purchased to replace a 20 year old Payne and in less than four months we've already had issues with the fan. Not very optimistic that we will get even five years out of this one. Already regretting going with such a low cost furnace. Buyer beware! Also, if you do not register the warranty within x number of days you are out of luck with the manufacturer. Of course Home Depot doesn't tell you this and there was nothing in bold, conspicuous font telling you this in the manual. Only plus side is that it was easy to install. April 15, 2015
Rated 5.0 out of 5.0 by So far so good My father and I are still installing it because I still don't need it yet. It looks good though and is easy to install. The hardest thing is that it's so much smaller than my old furnace, we've had to build a transition to the A-coil. So far so good! Can't wait to use it! October 21, 2014
Rated 5.0 out of 5.0 by Still Going Strong After 15 Years We have this furnace, not sure of the BTU's or model year. Never had any major issues in the whole 15 or so years we've had it. A few years ago it needed the temp gauge (?) cleaned and about a month ago it needed a new ignitor, that's it. January 24, 2015
  • 2015-07-31T12:09:27.249-05:00
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