Your furnace plays a crucial role in keeping your Denver home warm and comfortable during the city’s chilly winters. However, like any appliance, furnaces have a limited lifespan. Recognizing the signs of a failing furnace early can help you avoid unexpected breakdowns and costly repairs. At Hartzell Heating and Air Conditioning, Denver’s trusted HVAC experts, we’ve compiled a list of warning signs that indicate it may be time for a furnace replacement.
Discover how identifying these issues can save you money, improve your home’s comfort, and ensure you’re prepared for the cold months ahead.
Most furnaces last between 15 and 20 years. If your furnace is over 15 years old, it’s time to start considering a replacement. Aging systems lose efficiency and are more prone to breakdowns, driving up your energy costs and reducing your comfort. For a professional assessment, contact Hartzell Heating and Air Conditioning to explore your options for a new energy-efficient furnace.
Are your heating bills increasing despite consistent usage? This could indicate your furnace is becoming inefficient. As furnaces age, they consume more energy to maintain the desired temperature. Upgrading to a modern, energy-efficient furnace with Hartzell Heating and Air Conditioning can significantly reduce your utility costs.
If you find yourself frequently calling for furnace repairs, it’s a sign the system is nearing the end of its lifespan. Investing in a new furnace often costs less in the long run than repeatedly repairing an old one. Hartzell Heating and Air Conditioning offers expert furnace replacement services tailored to your home’s needs.
Do some rooms feel warmer or colder than others? Uneven heating suggests that your furnace is struggling to distribute heat evenly throughout your home. Our team at Hartzell Heating and Air Conditioning can inspect your system and recommend solutions, including a possible upgrade to improve efficiency and comfort.
Unusual noises like rattling, banging, or humming coming from your furnace can signal internal problems. While some issues can be repaired, persistent or loud noises often indicate the need for a replacement. Contact Hartzell Heating and Air Conditioning to diagnose the problem and ensure your safety.
A healthy furnace should produce a steady blue flame. A yellow or flickering flame can indicate carbon monoxide production, which is dangerous and potentially deadly. If you notice this, immediately contact Hartzell Heating and Air Conditioning for a safety inspection and possible furnace replacement.

Older furnaces may struggle to maintain proper humidity levels, leading to dry air, increased dust, and static electricity in your home. Modern HVAC systems are designed to improve indoor air quality. Hartzell Heating and Air Conditioning can recommend upgrades to enhance humidity control and air filtration.
Persistent or strange odors, such as a burning smell, moldy scent, or gas-like aroma, can indicate serious furnace issues. If you notice unusual smells, don’t wait. Schedule an inspection with Hartzell Heating and Air Conditioning to address the problem promptly.
Short cycling happens when your furnace frequently turns on and off without completing a full heating cycle. This issue can overwork your system, reduce its efficiency, and lead to premature failure. Reach out to Hartzell Heating and Air Conditioning for a professional evaluation and lasting solutions.
If you’re experiencing any of these signs, it’s time to consider upgrading your furnace. A new energy-efficient furnace offers better performance, lower utility bills, and peace of mind. At Hartzell Heating and Air Conditioning, we specialize in furnace replacement and installation in Denver and the surrounding areas. Contact us today to schedule a consultation and learn how we can help you find the best heating solution for your home.
The cost depends on factors like the furnace type, size, and energy efficiency. Contact Hartzell Heating and Air Conditioning for a customized estimate.
Most furnace replacements are completed within one day. Our technicians work efficiently to minimize disruptions to your schedule.
Yes, many energy-efficient furnaces qualify for rebates and tax incentives. Our team can help you explore available programs.
Regular maintenance, including annual inspections and filter changes, ensures your furnace operates efficiently and lasts longer. We offer comprehensive maintenance plans.
Absolutely! We provide a full range of HVAC services, including air conditioning installation, maintenance, and repairs. Contact us to learn more.
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