Gas Furnaces

Harmonic Heating & Air Conditioning specializes in installation and replacement of all types of gas furnaces in Oswego, IL. We offer a wide variety of gas furnace installation and gas furnace replacement options to meet efficiency and budget needs. Our staff can diagnosis your existing systems and recommend terrific new high efficiency choices. We offer same day evaluation and prompt gas furnace installation services in Oswego, IL.

Let us help you decide how best to solve you gas heating problems the the installation or replacement of a gas furnace.

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Installed An Armstrong 80% 110,000 Btu Furnace And A Honeywell F100 Kit Along With A Humidifier
Ambreen, A. Oswego, IL
12-30-2022

Furnace Service Diagnostic And Installed An Armstrong 96% 2 Stage High Efficiency 70k Btu Furnace And An Ecobee 3 Lite Programmable Smart Wi-fi Thermostat
Barb, M. Oswego, IL
11-29-2022

Installed An Armstrong 90% 2 Stage 135k Btu Furnace
Andrew, S. Oswego, IL
11-15-2022

Annual Furnace Maintenance, Purchased A Maintenance Plan, Replaced Furnace With An Armstrong 96% 2 Stage 135k Btu Furnace
Peter, R. Oswego, IL
10-07-2022

Purchased A Replacement Furnace Air Conditioner Coil Replacement Smart Thermostat And Humidifier HVAC System Armstrong
Scott, V. Oswego, IL
09-15-2022

Installed An Armstrong 96% High Efficiency 2 Stage Variable Speed 135k Btu Furnace, Installed An Armstrong ComfortSync A3 Wi-fi Thermostat And Installed An April Aire E100 Dehumidifier
Maria & Richard, D. Oswego, IL
08-08-2022

Installed An Armstrong 90,000 Btu 80% Variable Speed Furnace
Pam and, G. Oswego, IL
07-08-2022

Installed An Armstrong High Efficiency 90k Btu Furnace
Dan, U. Oswego, IL
06-13-2022

Installed An Armstrong 70k Btu A802v Furnace
Jason, H. Oswego, IL
02-09-2022

Installed An Armstrong HVAC System, 70k Btu 95% 1E Furnace, 3 Ton 16LE Air Conditioner With Matching Coil And State Brand 40 Gallon Standard Hot Water Heater
Clint, H. Oswego, IL
12-30-2021

Installed An Armstrong HVAC System, 90k Btu 96% 2v Furnace, 4 Ton LS16 Air Conditioner With Matching Coil, T6 Lyric Pro WiFi Smart Thermostat, Honeywell F100 Media Air Filter And A 700M Humidifier
Greg, G. Oswego, IL
11-18-2021

Installed An Armstrong 90k Btu 95% 1E Furnace
MaryAnn, K. Oswego, IL
11-11-2021

Installed An Armstrong HVAC System, 110k Btu 80% 2v Furnace, 4 Ton LE16 Air Conditioner With Matching Coil, T6 Lyric Pro WiFi Smart Thermostat And A Honeywell F100 Media Air Filter Kit
Brian, S. Oswego, IL
11-11-2021

Installed An Armstrong 135k Btu A80 1E CT Furnace
Jon, V. Oswego, IL
08-09-2021

Installed An Armstrong HVAC System, 70k Btu A80 2v Furnace, 2.0 Ton LE16 Air Conditioner, T6 Lyric Pro Smart Thermostat And A Honeywell F100 Media Air Filter Kit
Rating:

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Carol, S. Oswego, IL
01-29-2021

Garage Heater Installation
Rating:

"Great service! Quick to respond. Reasonable prices and quality work! "

Jen, W. Oswego, IL
01-08-2021

Installed An Armstrong 90k Btu A96 2v Furnace
Rating:

"Great communication and quality service. We are happy we chose Harmonic!"

John, G. Oswego, IL
01-08-2021

Installed An Armstrong 110k Btu A80 2v Furnace
Rating:

"Very polite and well knowledgeable on the HVAC systems!!! Made it an easy choice for my family!!"

Nate, B. Oswego, IL
01-08-2021

Installed An Armstrong 135k Btu A96-2v Furnace And A Honeywell F100 Media Air Filter
Vernon, S. Oswego, IL
11-20-2020

Installation Of An Armstrong 135k Btu A96-2v Furnace, Installation Of An Armstrong 5.0 Ton LS16 Air Conditioner, Installed A 700M Humidifier And Installed An Armstrong Honeywell F100 Media Air Filter
Jameson, V. Oswego, IL
09-28-2020

Installed An Armstrong 110k Btu A80 1E CT Furnace
Lisa & Gary, B. Oswego, IL
02-07-2020

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