FurnaceReplacement2025-08-22
7 Signs You Need a New Furnace
Age, rising bills, repeated repairs and uneven heat all signal it may be time to replace your furnace.
Furnaces last about 15–20 years. Knowing the warning signs helps you replace on your terms instead of during a mid-winter breakdown.
The key warning signs
Age over 15 years, rising gas bills, frequent repairs, uneven heating, yellow burner flame, excessive dust or dryness, and strange noises all point toward replacement.
Repair vs replace
If a repair costs more than a third of a new furnace and the unit is over 12–15 years old, replacement usually makes more financial sense — especially with today's efficiency gains and rebates.
Key takeaways
- Track repair frequency and cost
- Compare gas bills year over year
- Ask about high-efficiency rebates
- Plan replacement before peak winter
Need help with your furnace?
Licensed, gas-certified technicians serving Greater Vancouver since 1999. CombiBoiler.ca — A division of ROMA Heating Ltd..
Frequently asked questions
More Furnace articles
Furnace Won't Turn On? Causes and FixesA furnace that won't start usually comes down to power, thermostat, filter or ignition — here's how to diagnose it safely.Furnace Blowing Cold Air: What to CheckCold air from your vents can mean a thermostat fan setting, overheating, or an ignition problem.Why Your Furnace Short-Cycles (and How to Stop It)Short-cycling wastes gas and wears out your furnace — the usual suspects are airflow, the flame sensor, and oversizing.No Heat? Emergency Furnace Repair GuideA furnace with no heat in winter is urgent — here's what to check and when to call for emergency service.Furnace Making Strange Noises: A Sound-by-Sound GuideBanging, squealing, rattling or rumbling each point to different furnace problems.Annual Furnace Maintenance ChecklistA yearly furnace tune-up before winter improves safety, efficiency and reliability.
More from our knowledge base
Boiler Leaking Water: Causes and RepairsBoilerBoiler No Heat: Emergency TroubleshootingBoilerWhy Your Boiler Keeps Losing PressureBoilerBoiler No Hot Water: Common CausesBoilerBoiler Kettling and Banging Noises ExplainedBoilerCombi vs Conventional Boiler: Which Is Best?BoilerAll ArticlesBrowse the full library