Top 10 furnace repair services in Chicago Ridge, IL

Porch Pro Headshot The Appliance Repairmen
Furnace Repair
Serves Chicago Ridge, Illinois
The Appliance Repair Experts We service all brands of washing machines, dryers, stoves and refrigerators. all of our technicians are partners in the company and personally want to satisfied customer. we explain the problem in a simple terms to help you understand what your paying for. weather you ha...Read more about The Appliance Repairmen
The Appliance Repair Experts We service all brands of washing machines, dryers, stoves and refrigerators. all of our technicians are partners in the company and personally want to satisfied customer. we explain the problem in a simple terms to help you understand what your paying for. weather you ha...Read more about The Appliance Repairmen
Porch Pro Headshot Update Heating and Cooling Services
Furnace Repair
Serves Chicago Ridge, Illinois
(593)
Update Heating and Cooling Services offers heating and air conditioning maintenance, installation, repairs, and everything in between, our goal is to address your HVAC needs in a timely, efficient, and cost-effective fashion. Our technicians are not only factory-trained and authorized, they are als...Read more about Update Heating and Cooling Services
Update Heating and Cooling Services offers heating and air conditioning maintenance, installation, repairs, and everything in between, our goal is to address your HVAC needs in a timely, efficient, and cost-effective fashion. Our technicians are not only factory-trained and authorized, they are als...Read more about Update Heating and Cooling Services
Porch Pro Headshot The Furnace Company
Furnace Repair
Serves Chicago Ridge, Illinois
(205)
Boiler & Furnace Repair in Chicago, Illinois Don't let a broken heating system ruin your day--call The Furnace Company for immediate boiler and furnace repair services. Backed by more than 40 years of industry experience, our technicians know how to get the job done and how to get it done right. Boi...Read more about The Furnace Company
Boiler & Furnace Repair in Chicago, Illinois Don't let a broken heating system ruin your day--call The Furnace Company for immediate boiler and furnace repair services. Backed by more than 40 years of industry experience, our technicians know how to get the job done and how to get it done right. Boi...Read more about The Furnace Company
Porch Pro Headshot Specific Heating and Air Conditioning
Furnace Repair
Serves Chicago Ridge, Illinois
(71)
We provide: Sales, Service and Installation for your heating, air conditioning, water heater, boiler system (steam and Water), humidifiers, air cleaners and air purifier needs for your home. We offer the best guarantees and warranty's for all our work. A+ ratings through out the internet, Better B...Read more about Specific Heating and Air Conditioning
We provide: Sales, Service and Installation for your heating, air conditioning, water heater, boiler system (steam and Water), humidifiers, air cleaners and air purifier needs for your home. We offer the best guarantees and warranty's for all our work. A+ ratings through out the internet, Better B...Read more about Specific Heating and Air Conditioning
Porch Pro Headshot D's Air & Heating, Inc.
Furnace Repair
Serves Chicago Ridge, Illinois
(73)
Commitment, Dedication, Professionalism, Experience, Is Our Goal. Comfort Specialist You Can Depend On! Don't "FREEZE" Call D's...For All Your Heating, Ventilation And Air Conditioning Needs. A family owned and operated business here to deliver customer satisfaction in the heating, air con...Read more about D's Air & Heating, Inc.
Commitment, Dedication, Professionalism, Experience, Is Our Goal. Comfort Specialist You Can Depend On! Don't "FREEZE" Call D's...For All Your Heating, Ventilation And Air Conditioning Needs. A family owned and operated business here to deliver customer satisfaction in the heating, air con...Read more about D's Air & Heating, Inc.
Porch Pro Headshot R-Reliable Heating & Cooling
Furnace Repair
Serves Chicago Ridge, Illinois
(6)
R- Reliable Heating and Cooling has been providing customers with quality work at unbeatable prices for over 30 years! Specializing in Installation and Service of Peerless Boilers, Stainless Steel Chimney Liners, Furnaces and Central AC Systems. For More Information Call 773 600 6060!
R- Reliable Heating and Cooling has been providing customers with quality work at unbeatable prices for over 30 years! Specializing in Installation and Service of Peerless Boilers, Stainless Steel Chimney Liners, Furnaces and Central AC Systems. For More Information Call 773 600 6060!
Porch Pro Headshot Premier HVAC Cooling & Heating
Furnace Repair
Serves Chicago Ridge, Illinois
(44)
Premier HVAC is dedicated to providing honest affordable same day service and repair of all your heating and cooling needs CALL NOW: 815-293-3770 -Available 24/7 Saturday & Sunday No Upcharge ! -Best rates in Heater / Furnace and Air Conditioning repair -Feeling overcharged ? Need a second opini...Read more about Premier HVAC Cooling & Heating
Premier HVAC is dedicated to providing honest affordable same day service and repair of all your heating and cooling needs CALL NOW: 815-293-3770 -Available 24/7 Saturday & Sunday No Upcharge ! -Best rates in Heater / Furnace and Air Conditioning repair -Feeling overcharged ? Need a second opini...Read more about Premier HVAC Cooling & Heating
Porch Pro Headshot Standard Heating & Cooling
Furnace Repair
Serves Chicago Ridge, Illinois
(46)
Since 1972, Standard Heating & Cooling has provided quality heating and cooling service to the south Chicago suburbs. Specializing in residential HVAC repair and replacement, our expert technicians can install and repair almost any HVAC system. Our Comfort Consultants work directly with you to deter...Read more about Standard Heating & Cooling
Since 1972, Standard Heating & Cooling has provided quality heating and cooling service to the south Chicago suburbs. Specializing in residential HVAC repair and replacement, our expert technicians can install and repair almost any HVAC system. Our Comfort Consultants work directly with you to deter...Read more about Standard Heating & Cooling
Porch Pro Headshot Murray HVAC  Inc.
Furnace Repair
Serves Chicago Ridge, Illinois
(28)
Murray HVAC, Inc. is a family owned and operated business that has been servicing the North Shore of Chicago since 1948. We are committed to Honesty, Quality and Service, which means you'll get it done right the first time and at a fair price. We are experts at solving comfort issues and we speciali...Read more about Murray HVAC Inc.
Murray HVAC, Inc. is a family owned and operated business that has been servicing the North Shore of Chicago since 1948. We are committed to Honesty, Quality and Service, which means you'll get it done right the first time and at a fair price. We are experts at solving comfort issues and we speciali...Read more about Murray HVAC Inc.
Porch Pro Headshot Cardinal Heating & Cooling
Furnace Repair
Serves Chicago Ridge, Illinois
What makes our business unique is the fact that we have been trained to not only service and install furnaces & air conditioners. We have training in duct sizing & design. Many reoccurring furnace & air conditioner problems can be linked to poor or undersized duct systems. We make it our concern to ...Read more about Cardinal Heating & Cooling
What makes our business unique is the fact that we have been trained to not only service and install furnaces & air conditioners. We have training in duct sizing & design. Many reoccurring furnace & air conditioner problems can be linked to poor or undersized duct systems. We make it our concern to ...Read more about Cardinal Heating & Cooling

Frequently asked questions about heating & furnace repair companies

Your furnace should be cleaned every year or every two years at the most. A yearly furnace cleaning can catch small problems and fix them before they become serious repairs. It's like how changing the oil in your car may prevent a breakdown in the future. You should plan to have your furnace cleaned before you need it in the winter. Most people leave this to the last minute, and HVAC companies become very busy as the temperature drops.

Some indicators that your furnace needs to be cleaned:

  • The temperature is inconsistent from room to room.
  • Your furnace is struggling to maintain the temperature you set.
  • The furnace produces no heat at all.
  • You have a higher than expected energy bill after turning it on.
  • You smell rubber, smoke, or oil when you turn it on. (It's normal to smell dust).
  • Your furnace flame is any color but blue, which can indicate an imbalance in the gasses.
  • It makes a loud bang, howling, or whistling sound. This points to clogged air filters, dirty burners, or a restricted fuel supply.

Some people consider cleaning the furnace in the spring rather than in the fall. The best practice is to vacuum the furnace out in the spring, then do your annual maintenance in the late summer or fall.

Regular furnace maintenance can extend your furnace’s life by years and prevent some costly repairs. Regular furnace maintenance involves taking apart essential components, inspecting and cleaning them, then reassembling them for use. These components include your furnace filter, blower, burners, and flame sensors.

You can tackle a lot of this work on your own. It may take a few hours to familiarize yourself with the tools and equipment if it's your first time maintaining your furnace. Once you know the drill, furnace maintenance shouldn’t take more than a couple of hours. Start by shutting off the furnace's electrical power and fuel supply. Once that’s done, the combustion chamber can be accessed, vacuumed out, and inspected for holes. If you find any holes, patch them with foil tape.

Next, thoroughly clean the blower compartment. This will remove dirt and debris. Like with the combustion chamber, you or a professional need to inspect for any holes. Don’t forget to replace the air filter. You may be able to upgrade the air filter so it protects against mildew, pollen, and other airborne allergens. If you have an oil furnace, you’ll also want to replace the oil filter. This should be done annually. Finally, oil the machine bearings, taking care not to over-lubricate them.

If your furnace makes odd noises, you should hire a professional as soon as possible. There are a few other indicators that your furnace needs professional attention. Excessive soot could mean your burners need adjustment or that the heat exchanger needs replacing. If your flame is pale in color or irregular, this can indicate dirty burners or a cracked heat exchanger. This is a potential hazard and requires a professional to investigate. If your furnace is short-cycling (which means it only runs for a short period of time before shutting off), you may have a thermostat issue or an overheating exchanger. This also requires the expertise of a professional.

You should have your furnace serviced annually for the best results. Some people will wait every two years, though better maintenance schedules often mean fewer surprises. Most times, when a furnace stops providing heat without warning in the winter, the issue could have been solved with a maintenance call the season beforehand. Maintained furnaces run at their best efficiency, which helps your energy bill.

Furnace services can reveal carbon monoxide leaks, a health hazard that needs to be fixed immediately. If left untreated, carbon monoxide can lead to dizziness, nausea, headaches, and even death.

When hiring a professional, whether for annual maintenance or repairs, a quick search for “Furnace repair near me” will bring up several local companies to hire. Most states require HVAC companies to be licensed. They should also be fully insured and bonded. A great HVAC repair company will be transparent in what they do and what they charge, and they should be able to show documentation if requested. HVAC companies get quite busy as the temperature drops, so consider calling in the late summer and get ahead of the rush.

Your HVAC company should be able to give you an estimate of what repairs will cost. Oil and gas furnace repairs cost more than their electrical competitors, but their maintenance costs should be similar. If your furnace is over ten years old, you should prioritize annual maintenance. Most furnaces need to be replaced within ten to twenty years. Most furnace companies will advise that any serious repairs to an older furnace may not last long and that replacing your furnace would be the best option.

If your furnace is not producing heat, there are several components you should check. Start with the thermostat - is it switched to “heat”? What temperature does the thermostat say compared to the actual room temperature? Try setting the thermostat to five degrees higher and see if the furnace kicks on. Replace the battery and check the wiring for any breaks. Ensure there are no loose wires within the thermostat, and blow away any dust while you’re in there.

Check the fuse box and the power switch for the furnace and ensure that everything is switched on. Occasionally, a clogged filter can cause the furnace to shut off, so check your filters next. The gas line should be open, but may be switched off for whatever reason. If the drain hose is particularly dirty or the chimney flue is clogged, this could also be why your furnace doesn’t produce any heat. Clean them of dust and debris and try the furnace again. After that, check the heat vents and ducting. Clogs in those areas may also affect your furnace’s heat.

If you’ve tried all that and your furnace still isn’t turning on, it’s time to call a professional to get your furnace repaired. They’ll also run through these basic troubleshooting steps, then move on to the complex components and causes of failure within furnaces. If your furnace is older than fifteen years or breaks down regularly, you may want to consider replacing it. New models are more efficient, and repairs can be expensive in the long run.

If you’re looking to have your furnace serviced or tuned up, the cost will depend on the type. An electric furnace can cost between $70 to $130 for a tune-up. Gas furnace tune-ups can cost between $80 to $170, whereas oil furnaces can cost between $100 to $200. A tune-up involves an inspection of the flues and vents, air filters, ignitor switches, fan belts, blowers, motors, electrical components, the heat exchanger, the condensate drain, and testing the thermostat.

Some HVAC companies have two standards for maintenance calls. A basic maintenance call will include a cleaning and offer a diagnostics report. The advanced maintenance call will involve a full tune-up and cleaning of your furnace’s sensors. This can cost between $130 to $200, whereas the basic (or standard) may cost between $70 to $130.

Other factors may alter the cost of furnace maintenance. If you do this at a slower time of year for HVAC companies, you may pay less. Also, if you have several HVAC systems, you may be able to get a discount. You may be charged more if your HVAC system is hard to reach. Some HVAC companies offer a discount for a maintenance plan. Others may charge more if you haven’t serviced the furnace in over a year, as more work will be involved.

The cost to repair a furnace is much higher than the cost to maintain one. The average repair cost for a furnace is anywhere from $100 to $600, based on the issue. There's a hidden cost as well - if your furnace is under warranty and you neglected the annual maintenance, the furnace company may not honor the warranty.

Furnaces make several different noises which indicate different problems. If your furnace is banging or booming when you turn it on, this likely indicates a delayed ignition. This can be attributed to a defective ignitor, a weak flame or pilot light, low gas pressure, or a burner malfunction. You should consult an HVAC professional for all these issues, as working with gas and fuel can be tricky.

Intermittent banging or booming is most likely caused by expanding and detracting ductwork. This doesn't necessarily need a fix, unless the noise is preventing you from sleeping at night. You’ll need to fortify the ductwork or replace it with round ductwork. Your furnace may make a dry squeal if any belts or bearings are worn. You can fix this yourself for relatively cheap, but a worn belt points to a lack of cleaning and maintenance. You may want to call a professional to inspect for other potential repairs that may be in your future.

If your furnace makes a high-pitched wail, it’s most likely an airflow problem. A dirty air filter and closed or blocked vents are your likely culprits. Rattling means a part is loose or your heat exchanger is cracked. If you hear the rattling right after you turn the furnace on, it's probably the heat exchanger. The rattling is likely the metal coils expanding. If you hear a constant humming, this is likely a motor problem for either the blower or the inducer. Humming sounds from your furnace requires a professional right away.

A furnace is a large machine. Like a car engine, if it’s making a noise that it shouldn’t, this is usually a warning sign before it breaks down entirely. Every time you use your furnace while it needs repairing, you risk damaging it further and racking up a higher repair bill.

Recent reviews for Chicago Ridge furnace repair services

8784

Excellent to keep appointment. Excellent value. Excellent work quality.

The first coldest day of the year. I have heat again! Thanks to Philip. A knowledgeable repairman, fixed only what was necessary! Will definitely be the only place I call with furnace repair needs. Thank You!

- Gus Pedroza
205884

Thanks RReliable for replacing my furnace....professional, prompt and very reasonable pricing.

- Carlos Williams
204828

Guys were very professional, each installer introduced his self to me, they did a great job and cleaned up then when the they finished they each guy thanked me. I was blown away.

- Lenox Johnson
204801

Working with R-Reliable Heating and Cooling was nothing short of amazing. The crew was pleasant, quick, and their work was very neat. Best experience I’ve had!

- Mhaylon R
205599

My mom has her furnace serviced annually by R-Reliable and she is always pleased. That made me get mine installed by them as well. Great install guys! Thank you

- Cortez Carter

All Heating & Furnace Repair Companies in Chicago Ridge, IL

Porch Pro Headshot Any Season Comfort
Furnace Repair
Serves Chicago Ridge, Illinois
For more than 20 years, Any Season Comfort has been known for quality, customer care, and customer comfort. We know the ins and outs of heating & cooling like no one else. Any Season Comfort is a business founded on trust, honesty and integrity. Our heating and air conditioning services are backed...Read more about Any Season Comfort
For more than 20 years, Any Season Comfort has been known for quality, customer care, and customer comfort. We know the ins and outs of heating & cooling like no one else. Any Season Comfort is a business founded on trust, honesty and integrity. Our heating and air conditioning services are backed...Read more about Any Season Comfort
Porch Pro Headshot Ultra Lux Construction
Furnace Repair
Serves Chicago Ridge, Illinois
(26)
Experienced 5 star Residential and Commercial Real Estate Developer and General Contractor for all you remodeling needs in Chicago and suburbs. Licensed, bonded and insured.
Experienced 5 star Residential and Commercial Real Estate Developer and General Contractor for all you remodeling needs in Chicago and suburbs. Licensed, bonded and insured.
Porch Pro Headshot Preferred Comfort
Furnace Repair
Serves Chicago Ridge, Illinois
(27)
When it comes to Air Conditioning Repair, Furnace Repair and HVAC Repair, no one compares to Preferred Comfort. With years of combined experience, Preferred Comfort has worked hard to build the trust of our clients in Palos Heights, Orland Park, Tinley Park and beyond. Visit our website to learn mor...Read more about Preferred Comfort
When it comes to Air Conditioning Repair, Furnace Repair and HVAC Repair, no one compares to Preferred Comfort. With years of combined experience, Preferred Comfort has worked hard to build the trust of our clients in Palos Heights, Orland Park, Tinley Park and beyond. Visit our website to learn mor...Read more about Preferred Comfort
Porch Pro Headshot D'andrea Heating & AC
Furnace Repair
Serves Chicago Ridge, Illinois
D'andrea Heating & Cooling is a customer focused heating and air-conditioning company that was originally started in 1959. Located in Worth, IL, we employ highly trained people whose goal is to make our company the best service company in Chicago area and South Suburbs. Our company specializes in de...Read more about D'andrea Heating & AC
D'andrea Heating & Cooling is a customer focused heating and air-conditioning company that was originally started in 1959. Located in Worth, IL, we employ highly trained people whose goal is to make our company the best service company in Chicago area and South Suburbs. Our company specializes in de...Read more about D'andrea Heating & AC
Porch Pro Headshot Giant Mechanical, Inc.
Furnace Repair
Serves Chicago Ridge, Illinois
Giant Mechanical, Inc. has been satisfying customers with competitive pricing and unparalleled workmanship. Giant Mechanical, Inc. builds excellence into every project it undertakes. As a full-service contractor, it provides an integrated solution to your heating, refrigeration, ventilation, and air...Read more about Giant Mechanical, Inc.
Giant Mechanical, Inc. has been satisfying customers with competitive pricing and unparalleled workmanship. Giant Mechanical, Inc. builds excellence into every project it undertakes. As a full-service contractor, it provides an integrated solution to your heating, refrigeration, ventilation, and air...Read more about Giant Mechanical, Inc.
Porch Pro Headshot Air Blue Htg & Cooling Inc
Furnace Repair
Serves Chicago Ridge, Illinois
Air Blue Heating & Cooling, Inc. is full service heating and cooling company staffed by experienced, trained, and courteous professionals. We serve you with over 30 years of HVAC field experience. We pride ourselves on excellent customer service, and will make sure that your every HVAC need and requ...Read more about Air Blue Htg & Cooling Inc
Air Blue Heating & Cooling, Inc. is full service heating and cooling company staffed by experienced, trained, and courteous professionals. We serve you with over 30 years of HVAC field experience. We pride ourselves on excellent customer service, and will make sure that your every HVAC need and requ...Read more about Air Blue Htg & Cooling Inc
Porch Pro Headshot A Custom Heating & Air Condit Longing
Furnace Repair
Serves Chicago Ridge, Illinois
We specialize in residential HVAC work. All furnaces,Boilers, A/C systems, Humidifiers, Indoor air quality, Unico/Space pac systems, and Air balancing( making your heating and cooling more efficient and fixes uneven temps). We have been in business on the north west side of Chicago for over 21 year...Read more about A Custom Heating & Air Condit Longing
We specialize in residential HVAC work. All furnaces,Boilers, A/C systems, Humidifiers, Indoor air quality, Unico/Space pac systems, and Air balancing( making your heating and cooling more efficient and fixes uneven temps). We have been in business on the north west side of Chicago for over 21 year...Read more about A Custom Heating & Air Condit Longing
Porch Pro Headshot The Appliance King, Inc.
Furnace Repair
Serves Chicago Ridge, Illinois
The Appliance King in Chicago, we provide in home appliance repair service including Washing Machine, Washer, Dryer, Dishwasher, Oven, Stove, Cooktop, Range, Freezer, Refrigerator, Ice Maker, Garbage Disposal, Food Disposal Repair. We Service Almost All Major Appliance Brands, Makes and Models inclu...Read more about The Appliance King, Inc.
The Appliance King in Chicago, we provide in home appliance repair service including Washing Machine, Washer, Dryer, Dishwasher, Oven, Stove, Cooktop, Range, Freezer, Refrigerator, Ice Maker, Garbage Disposal, Food Disposal Repair. We Service Almost All Major Appliance Brands, Makes and Models inclu...Read more about The Appliance King, Inc.
Porch Pro Headshot Ronnix HVAC
Furnace Repair
Serves Chicago Ridge, Illinois
Ronnix HVAC Chicago, IL, 60629 (708) 566-7144 We are Ronnix HVAC and we provide professional HVAC Services in the Chicago, IL area! Do not hesitate to contact us now! HVAC Services, HVAC Company, HVAC Experts, HVAC System, HVAC Contractors Kenwood, IL HVAC Mechanic, New HVAC System, Commercial HVAC...Read more about Ronnix HVAC
Ronnix HVAC Chicago, IL, 60629 (708) 566-7144 We are Ronnix HVAC and we provide professional HVAC Services in the Chicago, IL area! Do not hesitate to contact us now! HVAC Services, HVAC Company, HVAC Experts, HVAC System, HVAC Contractors Kenwood, IL HVAC Mechanic, New HVAC System, Commercial HVAC...Read more about Ronnix HVAC
Porch Pro Headshot Bullseye Heating and Cooling
Furnace Repair
Serves Chicago Ridge, Illinois
We believe that we always strive To deliver products and services that will ultimately exceed our customer's expectations. To be perceived by consumers and peers as the leader in providing quality indoor comfort. To be the best in all that we do, there is no room for second place. To never forget ou...Read more about Bullseye Heating and Cooling
We believe that we always strive To deliver products and services that will ultimately exceed our customer's expectations. To be perceived by consumers and peers as the leader in providing quality indoor comfort. To be the best in all that we do, there is no room for second place. To never forget ou...Read more about Bullseye Heating and Cooling
Porch Pro Headshot Elite Appliance 847-581-2880
Furnace Repair
Serves Chicago Ridge, Illinois
We are family appliance repair business serving the Chicagoland area and most suburbs. We have over 20 years of experience with major brand appliances (GE, Whirlpool, Amana, Bosch, Maytag, Kitchen Aid) including high end (Sub Zero, Viking, Dacor, Miele, Marvel, Thermador). Our Technicians will diagn...Read more about Elite Appliance 847-581-2880
We are family appliance repair business serving the Chicagoland area and most suburbs. We have over 20 years of experience with major brand appliances (GE, Whirlpool, Amana, Bosch, Maytag, Kitchen Aid) including high end (Sub Zero, Viking, Dacor, Miele, Marvel, Thermador). Our Technicians will diagn...Read more about Elite Appliance 847-581-2880
Porch Pro Headshot ServPro of Elks Grove/Itasca/Roselle/Palatine/Rolling Meadows
Furnace Repair
Serves Chicago Ridge, Illinois
ServPro of Elks Grove/Itasca/Roselle/Palatine/Rolling Meadows, based in Elk Grove Village, is an HVAC company that was founded in 2000. They offer gas appliance connection, water line installation and more. The United States Environmental Protection Agency has accredited ServPro of Elks Grove/Itasca...Read more about ServPro of Elks Grove/Itasca/Roselle/Palatine/Rolling Meadows
ServPro of Elks Grove/Itasca/Roselle/Palatine/Rolling Meadows, based in Elk Grove Village, is an HVAC company that was founded in 2000. They offer gas appliance connection, water line installation and more. The United States Environmental Protection Agency has accredited ServPro of Elks Grove/Itasca...Read more about ServPro of Elks Grove/Itasca/Roselle/Palatine/Rolling Meadows
Porch Pro Headshot W.A. Barakat HVAC
Furnace Repair
Serves Chicago Ridge, Illinois
Porch Pro Headshot All Seasons Heating and Air Conditioning
Furnace Repair
Serves Chicago Ridge, Illinois

Latest projects near Chicago Ridge

Recent projects booked on Porch
Oak Lawn 60453
Furnace Repair
Start Date
I'm flexible
Furnace fuel source
Natural gas
Furnace problems
Makes loud or unusual noises
When problems started
A month ago or longer
Furnace age
5-10 years old
Worth 60482
Furnace Repair
Start Date
Within a week
Furnace fuel source
Natural gas
Furnace problems
Low or no heat in all areas
When problems started
Less than one week ago
Furnace age
More than 20 years old
Oak Lawn 60453
Furnace Repair
Start Date
Within 48 hours
Furnace fuel source
Natural gas
Furnace problems
Low or no heat in one area
When problems started
Less than one week ago
Furnace age
I'm not sure