Brought to you by Hartzell Heating & Air – Your Local Denver HVAC Experts
Winter in Denver can be unpredictable—one day, it’s mild and sunny, and the next, you’re dealing with a deep freeze. Your HVAC system needs to keep up with these rapid temperature changes, ensuring your home stays warm and comfortable. Proper winter HVAC maintenance in Denver is important for keeping your home efficient and warm..
To help you get the most out of your heating system this season, Hartzell Heating & Air has put together five essential HVAC maintenance tips. Plus, at the end of this post, we’ll share an exclusive Furnace & AC Blowout Sale—the perfect opportunity to upgrade your system and save big!

1. Winter HVAC Maintenance Tip: Replace Your Furnace Filter for Efficiency in Denver
📌 Key Benefit: A clean filter improves airflow, efficiency, and indoor air quality.
One of the simplest yet most important HVAC maintenance tasks is replacing your furnace filter. Dirty filters can restrict airflow, forcing your system to work harder, which increases energy costs.
✔ How often? Change your filter every 1–3 months during winter.✔ Best practice: If you have pets or allergies, consider a high-efficiency pleated filter.✔ Energy savings: A clean filter can lower energy consumption by up to 15%.
🔎 Pro Tip: Set a reminder on your phone or thermostat to check and change your filter regularly!
2. Schedule a Professional Furnace Tune-Up
📌 Key Benefit: Prevent costly breakdowns and ensure safe operation.
If you haven’t scheduled a furnace tune-up yet, now’s the time! A professional HVAC inspection helps detect potential issues before they turn into major problems.
✅ What we check:
Heat exchanger for cracks (prevents carbon monoxide leaks)
Blower motor and fan for efficiency
Thermostat calibration for accurate temperature control
Burner and ignition system for proper operation
Regular tune-ups extend the life of your furnace and keep your system running efficiently. Call Hartzell Heating & Air today to schedule your winter tune-up!
3. Optimize Your Thermostat Settings for Comfort & Savings
📌 Key Benefit: Lower energy bills while keeping your home comfortable.
Did you know that adjusting your thermostat by just a few degrees can save you up to 10% per year on heating costs?
✔ Best settings for winter:
68°F when home (ideal balance of warmth and efficiency)
Lower by 7-10°F at night or when you’re away to save energy
📢 Upgrade to a Smart Thermostat! A Wi-Fi-enabled thermostat learns your schedule and automatically adjusts temperatures to maximize comfort and savings.
4. Seal Duct Leaks & Improve Insulation
📌 Key Benefit: Prevents heat loss and improves efficiency.
Leaky ductwork can waste up to 30% of heated air, making your furnace work overtime. Sealing gaps and insulating ducts can significantly improve HVAC efficiency and home comfort.
✔ DIY Fix: Use metal-backed tape or duct mastic to seal small leaks.✔ Check Insulation: Ensure attic and crawlspace insulation meet Denver’s recommended R-values.
📢 Need expert help? Our HVAC technicians can inspect and seal duct leaks to maximize efficiency.
5. Check Carbon Monoxide & Smoke Detectors
📌 Key Benefit: Keeps your family safe from carbon monoxide poisoning.
Since gas furnaces produce carbon monoxide (CO), it’s crucial to have working CO detectors in your home.
✔ Test your CO & smoke detectors monthly✔ Replace batteries every 6 months✔ Install detectors near bedrooms & living areas
🚨 If your CO detector ever goes off, leave your home immediately and call 911.
Conclusion
Keeping your HVAC system well-maintained during the winter helps ensure comfort, efficiency, and safety. By following these five essential winter HVAC maintenance tips, you can keep your system running smoothly, lower energy bills, and avoid unexpected repairs.
Ready to upgrade your system or need a professional tune-up? Hartzell Heating & Air is here to help! Contact us todayfor expert service and to take advantage of our limited-time Furnace & AC Blowout Sale!
📞 Call Now: 720-767-6326
🌐 Visit Us Online: https://www.hartzellheatingandairconditioning.com
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