Heating FAQs
Common Heating FAQs in Longmont, CO
If you’re a homeowner or business owner in Longmont, CO, chances are you’ve had questions about your heating system—especially when the cold Colorado winters roll in. At Homerun Heating & Air, we believe in educating our customers so they feel confident in the heating choices they make. From furnace troubleshooting to energy-efficient upgrades, we’re here to provide honest answers and expert insight. Below, we’ve gathered the most frequently asked questions about heating systems that we receive from customers throughout Longmont and surrounding areas. Our goal is to help you stay warm, safe, and informed.
1. How often should I service my furnace?
We recommend scheduling furnace maintenance at least once a year—ideally in the fall before temperatures drop. Regular maintenance helps prevent unexpected breakdowns, improves efficiency, and extends the lifespan of your system. During a routine tune-up, our HVAC professionals will inspect your furnace, clean internal components, check for safety issues, and ensure it’s running smoothly. According to the ENERGY STAR® program, routine maintenance can improve system efficiency by up to 15%. It’s a small investment that can save you money and stress during the heating season.
2. Why is my furnace blowing cold air?
There are a few possible reasons your furnace is blowing cold air. It could be as simple as the thermostat being set incorrectly or the fan being turned on instead of auto. Other common causes include a dirty air filter, pilot light issues (for older systems), or a malfunctioning ignition system. In some cases, it may indicate a problem with the heat exchanger or blower motor. At Homerun Heating & Air, we provide accurate diagnostics to pinpoint the issue and restore warm air quickly. If your furnace is acting up, give us a call at 303-586-7233.
3. What size furnace do I need for my home?
The correct furnace size depends on several factors, including your home’s square footage, insulation, layout, and local climate. A unit that’s too small will struggle to heat your space efficiently, while one that’s too large can short cycle and wear out prematurely. Our HVAC experts use load calculation methods like Manual J to determine the proper furnace size for your home. If you’re unsure what size system is best for your Longmont home, we offer free estimates and consultations to help you make the right decision.
4. What’s the average lifespan of a furnace?
Most modern furnaces last between 15 to 20 years with proper maintenance. High-quality models and those maintained annually may last even longer. If your furnace is nearing the 15-year mark and experiencing frequent issues or increased energy costs, it may be time to consider a replacement. Upgrading to a high-efficiency system can reduce energy bills and improve comfort. For more information about replacements, check out our Furnace Installation Services.
5. How can I improve my heating system’s energy efficiency?
Improving efficiency starts with routine maintenance and filter changes. Make sure your home is properly insulated and seal any air leaks around doors or windows. A programmable thermostat can help reduce energy waste by adjusting temperatures based on your schedule. Consider upgrading to a high-efficiency furnace, which can save 20% or more on your heating bill, according to the U.S. Department of Energy. Our team at Homerun Heating & Air can recommend specific upgrades based on your home’s needs.
6. How do I know if my furnace needs to be repaired or replaced?
If your furnace is over 15 years old, requires frequent repairs, or struggles to maintain comfortable temperatures, it may be time for a replacement. Rising utility bills and unusual noises like banging or squealing are also warning signs. Our technicians will inspect your system and provide an honest recommendation based on its condition and repair costs. Sometimes, a small fix is all that’s needed. Other times, a replacement offers better comfort and efficiency in the long run. We always prioritize your comfort and budget.
7. What is a high-efficiency furnace?
High-efficiency furnaces typically have an Annual Fuel Utilization Efficiency (AFUE) rating of 90% or higher. That means 90% or more of the fuel is converted into usable heat. These systems use a secondary heat exchanger and sealed combustion to extract more heat from the fuel source. Though they cost more upfront, they can save homeowners hundreds of dollars annually in energy costs. Learn more about our high-efficiency heating options on our HVAC Services Page.
8. Can a furnace cause carbon monoxide poisoning?
Yes, if a furnace is malfunctioning or poorly ventilated, it can produce carbon monoxide (CO), a dangerous, odorless gas. Cracked heat exchangers or blocked vents are common culprits. That’s why annual inspections and maintenance are crucial. We recommend installing carbon monoxide detectors near sleeping areas and checking batteries regularly. At Homerun Heating & Air, we inspect for CO risks during all heating system services to ensure your home is safe and compliant with safety standards.
9. Why is my furnace making a strange noise?
Furnaces can make a variety of noises, and each can signal something different. Rattling may indicate loose panels, banging could mean delayed ignition, and screeching might point to a worn-out blower motor. While some sounds are harmless, others can signal mechanical issues or safety concerns. Don’t ignore persistent or unusual noises. Contact our Longmont team for a professional diagnosis to prevent further damage to your system.
10. How often should I change my furnace filter?
Most 1-inch filters should be changed every 1 to 3 months, depending on your home’s air quality, the presence of pets, and how frequently the system runs. High-efficiency filters or media filters may last longer—up to 6 months. A dirty filter restricts airflow, reduces efficiency, and increases strain on your system. We recommend checking filters monthly during peak heating seasons. If you’re unsure which filter to use, we’d be happy to help during your next maintenance visit.
11. Do smart thermostats really save money on heating?
Yes, smart thermostats can significantly reduce heating costs by learning your habits and adjusting temperatures accordingly. According to ENERGY STAR, smart thermostats can save households up to $180 annually. They also provide remote access via your phone, allowing you to control your home’s climate from anywhere. If you’re interested in upgrading, we install and program smart thermostats for our Longmont customers to help them optimize comfort and efficiency.
12. What is included in a furnace tune-up?
A furnace tune-up includes a thorough inspection, cleaning, and testing of all system components. Our technicians check the burner, heat exchanger, blower motor, thermostat calibration, gas connections, and safety controls. We also lubricate moving parts and replace the air filter if needed. This proactive approach helps prevent breakdowns, improve energy efficiency, and extend your system’s life. Schedule your annual tune-up with our experienced team to stay ahead of winter weather.
13. Why are my heating bills so high?
Several factors can drive up heating costs: an aging or inefficient furnace, poor insulation, dirty filters, air leaks, or even an outdated thermostat. If your system is constantly cycling or working harder than usual, it uses more energy. We offer home energy assessments in Longmont to help identify inefficiencies and recommend cost-saving solutions. Often, small improvements like sealing ductwork or upgrading to a programmable thermostat can make a big difference.
14. How can I prevent my heating system from breaking down in the middle of winter?
The best way to avoid unexpected breakdowns is through regular maintenance. Schedule annual tune-ups to catch minor issues before they turn into major problems. Keep vents clear, change filters regularly, and don’t ignore unusual sounds or odors. If your system is older, consider proactive replacement before peak season. Our Grand Slam Service Plan offers priority scheduling, seasonal check-ups, and exclusive discounts for extra peace of mind.
15. What’s the best heating system for my Colorado home?
The ideal heating system depends on your home size, insulation, budget, and energy goals. Many homes in Longmont use gas furnaces for reliable, cost-effective heat. However, heat pumps are gaining popularity due to their dual heating and cooling functions and eco-friendly design. We also offer hybrid systems for enhanced efficiency. Our team will assess your needs and recommend the best system for comfort and long-term savings. Call us at 303-586-7233 to schedule a consultation.