July 16, 2025
Common Causes of AC Condenser Coils Freezing Over
The long, hot summers in Fort Worth, TX create a huge workload for your air conditioner. One of the most common problems . . .
Your furnace doesn’t just keep you comfortable—it protects your family and your home. When it stops working right, you’re left with cold nights, stress, and costly emergency repairs. This detailed guide will help you spot the key signs you need a new furnace, understand when repairs still make sense, and see what to expect from a replacement.
Age matters: Furnaces typically last 15 to 25 years. After that, they’re more likely to break down. Even well-maintained systems lose efficiency with time, so if your furnace is creeping past 15 years, start budgeting for a new one.
High energy bills: Notice your heating costs rising each winter? An aging furnace often needs more fuel or electricity to maintain the same temperatures. That extra energy drains your wallet.
Frequent breakdowns: Calling your HVAC tech once a year is normal for tune-ups. But multiple service calls or expensive repairs—especially those adding up to half the price of a new system—mean it’s time to think bigger.
Inconsistent comfort: Are some rooms freezing while others feel fine? Or is your furnace running almost nonstop, cycling on and off? This means it’s struggling to heat your house evenly.
Odd noises and smells: Bangs, rattles, or squeals could be failing parts like blower motors or bearings. A musty smell may point to mold, while a burning odor could signal overheating or electrical issues. If you ever smell gas or a rotten egg scent, turn off the system and call a professional immediately.
Visible rust or discolored flame: Rust on or around the furnace can indicate moisture problems or corrosion. A yellow burner flame (instead of blue) may signal incomplete combustion and carbon monoxide risk—don’t ignore it.
Want a professional opinion? Book a heating inspection to know for sure.
A newer furnace—especially under 10 years old—often just needs small fixes like a new ignition switch, fan belt, or thermostat. If the quote is well under 50% of replacement, repairing is usually smarter.
Signing up for a maintenance agreement also helps catch small issues early and keeps your warranty intact.
In Texas, the average new furnace installation ranges from $3,500 to $7,000, depending on size, brand, fuel type, and efficiency rating. Here's a rough breakdown:
Higher-efficiency units (AFUE 90%+) cost more upfront but reduce monthly bills—and often qualify for federal rebates or tax credits. The Energy Efficient Home Improvement Credit offers up to $600 back for qualifying units through 2032.
Check out your options on our heating installation page.
Replacing a furnace isn’t just plug-and-play. It involves gas lines, venting, and ensuring the unit is sized right for your home. A too-big or too-small furnace short cycles, wears out faster, and hikes energy bills.
Even more importantly, incorrect installation can pose serious safety hazards, like carbon monoxide leaks or voided manufacturer warranties. Licensed HVAC pros ensure everything is up to code and tested for safe, efficient performance.
Already facing heating problems? Explore heating repair or contact us to plan your next step.
At Air Techs Heating & Cooling, we start with straightforward advice—no pressure. If your furnace still has life, we’ll handle the repairs. If not, we’ll help you choose a new system that fits your needs and budget. Plus, our maintenance plans keep your investment running smoothly for years to come.
We proudly serve homeowners across Arlington, Fort Worth, Grand Prairie, Mansfield, and Kennedale with responsive, honest service.
Your home’s comfort shouldn’t be a guessing game. Whether you want a second opinion, a quick repair, or a full replacement, we’re here to help. Schedule your appointment with Air Techs and enjoy reliable warmth, lower energy bills, and stress-free support.
