Got a 15-year-old system and a repair quote? Here's a simple way to decide whether to fix it or replace it.

You turn the heat on for the first time this fall and get a whiff of something burning. Don't panic. It's almost always just dust. Why it happens All summer, dust settles on the parts inside your furnace, like the heat exchanger and the burners. When the furnace fires up for the first time, that dust burns off. It smells a little like burning, hot, or "toasty," and it's completely normal. How long it lasts Usually 15 to 30 minutes, and sometimes a few hours the first time or

Most Chattanooga thermostats still do the same four jobs they did twenty years ago. Heat. Cool. Auto. Fan on or auto. That is not a bad system. It is just a limited one. And this time of year — 50° mornings and 80° afternoons — is when those limits show up. What a traditional thermostat actually offers A standard thermostat is a switch with a temperature sensor in one hallway. System mode tells the equipment what it is allowed to do: Heat — heating only. Cooling is locked out

That is not a normal September for an air conditioner. It is extra runtime on a machine that already worked all summer. What that streak actually does A compressor that never gets a break runs hotter. Coils load up with pollen, dust, and humidity. Drain lines get sludgy. Electrical connections loosen from heat and vibration. Refrigerant that was “fine” in May can be off enough in September that the system is working harder than it looks. The house can still feel okay. That is

People ask us this a lot, and it is a fair question. Chattanooga summers are long and hot. Winters feel short. So why put heat in the floor? Because winters here are short — they are not nothing. January nights still drop to freezing. Tile and slab floors stay cold in the morning. November and March are the same story: the house is not “winter,” but it is not comfortable either. Radiant works well in that climate for a simple reason: heat rises. With a furnace, you warm air a

A common Chattanooga call: the living room feels fine, the system is running, and one bedroom, bonus room, or upstairs hall just isn’t getting cold air the way it used to. That does not automatically mean the whole unit or the whole duct system is shot. Most of the time, the problem is isolated. What usually causes one zone to fall off Start with the simple stuff. Closed or blocked registers, furniture over a vent, a dirty filter, or a return that’s been covered will starve o

Chattanooga summers put real pressure on a house. The AC runs, the vents feel cool, and the thermostat is set where you want it—yet the rooms still won’t hold temperature. When we get called out to inspect a job, we work through a checklist before we look anywhere else: HVAC system sized correctly for the home Ducts sealed (no leaks into attics, crawlspaces, or walls) Filters clean and unrestricted Indoor and outdoor coils clean Refrigerant charge correct Airflow balanced at

Chattanooga summers are long, hot, and humid. Your air conditioner doesn’t just cool the house—it works overtime for months straight. That constant runtime takes a real toll. What a Long Summer Does to Your System Compressors and motors run hard for extended periods, building heat and wear. Coils collect dust, pollen, and moisture, which reduces efficiency and forces the unit to work harder. Refrigerant levels can drift, airflow gets restricted, and electrical connections loo

Mini-splits are one of the most flexible ways to add comfort without the cost or hassle of extending your central system. They’re quiet, efficient, and can heat and cool spaces that traditional ductwork struggles to reach. Here are the four most common places Chattanooga homeowners put them to work: 1. Garages and Workshops Garages get brutally hot in summer and cold in winter. A mini-split turns that space into a usable workshop, home gym, or extra storage area year-round. M

Chattanooga summers don’t just make your house hot. They put long, hard hours on your air conditioner. By August, many systems have been running far more than they do the rest of the year. Most people never think about what that does inside the compressor. The compressor is the workhorse The compressor is the part that pumps refrigerant and creates the cooling. It is built to run, but it is not built to run hard for months without any relief. Long stretches of high outdoor te

Sunrooms, three-season rooms, and similar glass-heavy spaces create a unique load that central air systems were never designed to handle. Large amounts of glass allow significant solar gain. Even with blinds or low-E coatings, the space can heat up far faster than the rest of the house. The main system responds to the thermostat in the living area, not the sunroom. By the time the central unit runs long enough to pull the temperature down, the rest of the house is overcooled

At Scenic Air Solutions in Chattanooga, we’ve seen it many times: a historic or older home with a failing HVAC system. The last thing you want is bulky ductwork, ugly wall units, or major renovations that destroy the charm you love. Common Pitfalls to Avoid Traditional central can mean tearing into walls and ceilings for large ducts. This can damage original woodwork, plaster, or architectural details common in Chattanooga older homes. Oversized units also lead to short-cycli

Last week’s heat dome pushed a lot of Chattanooga homes to their limit. Highs near 100° with almost no overnight relief exposed weaknesses that don’t always show up during normal summer days. Here are the most common complaints we heard — and what they actually meant: “My unit ran almost nonstop and my electric bill is way up.” When an air conditioner hardly ever cycles off, it’s usually fighting humidity more than temperature. Chattanooga’s high moisture levels during heat w

We recently visited a client here in Chattanooga who’s been dealing with the same headache for the past few summers: their living room turns into a sauna every afternoon while the rest of the house stays comfortable. They assumed their AC unit was too small and needed replacing. Turns out, that wasn’t the problem at all. Here are some of the most common reasons a single room stays hot even when the rest of the system seems to be running: The unit is undersized — It simply can

In Chattanooga’s humid summers, it’s common to see some water around your outdoor AC unit. The system removes a lot of moisture from the air, and that condensation has to go somewhere. A small amount of dripping is usually normal. However, constant or heavy dripping, puddles that don’t dry up, or water showing up in new places often points to a problem that needs attention. Why Dripping Happens Your AC pulls humidity out of the house and condenses it on the cold evaporator co

If you have a two-story home in Chattanooga, you’ve probably dealt with it: the downstairs feels comfortable while the upstairs is noticeably warmer and often feels more humid, even when the AC is running. This is extremely common here. Warm air rises, and so does moisture. In Chattanooga’s humid summers, that rising air makes the upstairs feel muggy and uncomfortable. Add a hot attic (where most ductwork runs) and a single thermostat usually located downstairs, and you get u

Chattanooga summers are hot and humid. Your air conditioner should cool the air and pull moisture out of it. When it only cools without drying the air enough, your house feels sticky and clammy even though the temperature is down. Why this happens The AC is oversized for your home. It cools the air fast, then shuts off before it removes much humidity. Short run times mean less moisture removal. A clogged condensate drain or dirty coil can make the problem worse. Older systems

Chattanooga summers are famous for their heat, but it’s the high humidity that really tests your air conditioning system. With average relative humidity hovering around 71% year-round—and often reaching 75% or higher from June through August—your AC isn’t just fighting temperature. It’s battling moisture, too. At Scenic Air Solutions, we see this every year: homeowners notice their systems running longer, bills climbing, and comfort levels dropping even when the thermostat re

You’ve probably seen the videos. A technician snakes a camera into your vents, and suddenly the screen fills with years of dust, pet hair, and who-knows-what-else. Then the big truck shows up, the hoses go in, and out comes a mountain of dirt. It looks incredibly satisfying… and expensive. If you have an older home in Chattanooga and you’re starting to wonder if your ductwork needs cleaning, you’re not alone. But here at Scenic Air Solutions, we usually recommend against prof

At Scenic Air Solutions, we install modern, high-efficiency HVAC systems in Chattanooga homes every day. But every once in a while, we love looking back at just how far the industry has come — and one of our favorite local stories is the Tivoli Theatre. When the grand Tivoli opened on Broad Street in 1921, it was already a showstopper: a 1,750-seat “Jewel of the South” with crystal chandeliers, a Mighty Wurlitzer organ, and Beaux-Arts elegance. But in the sticky Chattanooga s