Your furnace has kept your Spokane home warm through many winters, but no system lasts forever. Knowing when to replace—rather than repair—can save you money, improve comfort, and prevent a mid-winter breakdown. Here are seven signs it’s time.
1. Your Furnace Is 15+ Years Old
Most furnaces last 15–20 years with proper maintenance. If yours is approaching or past 15, start planning for replacement—even if it’s still running. Efficiency drops significantly with age, and the risk of a major failure increases each season. Check the manufacture date on the rating plate inside the furnace cabinet.
2. Repair Costs Are Adding Up
The $5,000 rule: multiply the cost of the repair by the age of the furnace. If the result exceeds $5,000, replacement is usually the smarter investment. A $600 repair on a 10-year-old furnace ($6,000) signals it’s time to replace rather than patch.
3. Energy Bills Keep Climbing
If your heating bills have risen steadily despite similar usage and rates, your furnace is losing efficiency. Older furnaces operate at 60–70% AFUE, while new models reach 95%+—meaning nearly all the fuel becomes heat for your home. In Spokane’s long heating season, that difference adds up fast.
4. Uneven Heating Throughout the House
Some rooms too hot, others too cold? An aging furnace may struggle to distribute heat evenly. While ductwork issues can also cause this, a furnace that’s lost capacity or has a failing blower is a common culprit—especially if the problem has gotten worse over time.
5. Strange Noises or Smells
Banging, rattling, squealing, or a persistent burning smell can indicate serious problems: cracked heat exchanger, failing blower motor, or ignition issues. A cracked heat exchanger is especially dangerous—it can leak carbon monoxide. If you suspect this, turn off the furnace and call immediately.
6. Frequent Cycling or Constant Running
A furnace that turns on and off constantly (short cycling) or runs nonstop without reaching the set temperature is struggling. This wastes energy and wears out components faster. It can also indicate the furnace is improperly sized—something we’ll verify during a replacement consultation.
7. Visible Rust, Cracks, or Corrosion
Take a look at your furnace. Rust on the cabinet, visible cracks, or corrosion on the flue pipe are signs of age and potential safety issues. Excessive moisture or soot around the unit also warrants immediate professional inspection.
Frequently Asked Questions
How much does furnace replacement cost in Spokane?
Most residential furnace replacements in Spokane range from $4,500 to $8,500 depending on the size, efficiency rating, and installation complexity. We provide upfront, flat-rate pricing—no surprises. Financing options are available.
How long does installation take?
Most furnace replacements are completed in one day. We’ll remove the old unit, install the new furnace, test everything thoroughly, and walk you through the new system before we leave.
Should I replace my AC at the same time?
If your air conditioner is also 10+ years old, replacing both together can save on labor costs and ensure the systems are properly matched for peak efficiency. We’ll give you honest advice based on the condition of both units.
Thinking it might be time? Don’t wait for a breakdown in the middle of January. Call Provision at (509) 999-4775 for a free replacement co
