How to Prepare Your HVAC System for Winter Storms and Freezes

When winter storms roll in, your home or business can feel like a ship caught in a blizzard. The last thing you want is for your heating to fail when you need it most. At Ace Status Heating, we know how quickly a deep freeze can turn a small HVAC issue into an emergency hvac situation.

Let's walk through how you can keep your HVAC system running strong all winter long, avoid costly breakdowns, and stay safe when the mercury plunges.

Why Winter Preparation Matters ❄️

Winter storms and freezing temperatures are more than just uncomfortable—they can be downright dangerous for your HVAC system. Think of your HVAC as the heart of your home or business. When it’s working, everything feels right. But when it stops, life gets cold—fast.

Here’s why it matters:

• Frozen pipes can burst, causing water damage and expensive repairs.
• Outdoor units can ice over, leading to breakdowns or permanent damage.
• Power outages leave you without heat, risking your comfort and safety.
• Neglected systems work harder, using more energy and wearing out faster.

The National Fire Protection Association (NFPA) and U.S. Department of Energy both recommend regular HVAC maintenance to prevent winter emergencies and keep your system efficient.

Essential Winter HVAC Maintenance Tasks

Routine maintenance is like giving your HVAC system a warm coat before the storm hits. Here’s what you should do:

• Change your air filters: Dirty filters choke airflow and force your system to work overtime. Swap them out every 1–3 months.
• Check thermostat settings: Make sure your thermostat is set to “heat,” and test it to confirm the furnace kicks on.
• Inspect furnace and vents: Look for signs of rust, strange noises, or weak airflow. Clear any obstructions from vents.
• Schedule a professional tune-up: Licensed technicians can spot problems you might miss, clean components, and ensure everything’s safe.

A well-maintained system not only runs better, but also uses less energy—saving you money all season.

Protecting Outdoor Components

Your outdoor HVAC unit is like a sentry standing guard in the cold. It needs protection, too.

• Insulate any exposed pipes: Foam pipe sleeves or insulation tape can prevent freezing and bursting.
• Clear debris around outdoor units: Keep leaves, snow, and ice at least two feet away to allow proper airflow.
• Cover the unit (if recommended): Some manufacturers suggest using a breathable cover to keep snow and ice out. Always follow your system’s guidelines—trapping moisture can do more harm than good.

Emergency Preparedness Tips

Winter storms can knock out power or block access to emergency hvac help. Be ready:

• Backup power: Consider a standby generator to keep heat running during outages. Ace Status Heating installs and maintains generators for peace of mind.
• Know your emergency contacts: Keep your HVAC company’s number handy. Program it into your phone so you’re not searching in the cold.
• Stock up on essentials: Blankets, portable heaters (used safely), and extra filters can make a big difference if you’re stuck waiting for repairs.

When to Call a Professional

Some problems are best left to the pros. If you notice any of these signs, call for emergency hvac service right away:

• No heat or strange noises: Sudden silence or banging from your furnace is a red flag.
• Burning smells or smoke: Shut off your system and call for help—this could be a fire hazard.
• Frequent cycling: If your system keeps turning on and off, it may be struggling against the cold or a deeper issue.
• Frozen or leaking pipes: Water where it shouldn’t be is always an emergency.

Remember, licensed technicians follow industry standards like those from the Air Conditioning Contractors of America (ACCA) and the Occupational Safety and Health Administration (OSHA) to keep your system safe and efficient.

Extend Your HVAC’s Life and Save Money

Regular winter preparation does more than just prevent emergencies. It helps your system last longer, reduces energy bills, and keeps your indoor air clean and healthy. Here’s how:

• Routine filter changes: Protect indoor air quality and prevent dust buildup.
• Annual tune-ups: Catch small issues before they become big problems.
• Duct cleaning: Remove dust and debris to boost airflow and efficiency.
• Thermostat upgrades: Modern programmable thermostats can save up to 10% on heating costs (source: U.S. Department of Energy).

Frequently Asked Questions

How often should I schedule winter HVAC maintenance?
At least once a year—ideally before the first freeze. If you notice any problems, don’t wait.

Can I cover my outdoor unit with plastic?
No. Use only covers recommended by your manufacturer. Plastic traps moisture and can cause rust.

What temperature should I set my thermostat in winter?
Most experts recommend 68°F when you’re home and awake, and lower when you’re away or asleep.

Is it safe to use portable heaters during an outage?
Only use heaters with automatic shut-off and never leave them unattended. Follow manufacturer instructions to avoid fire hazards.

Special Considerations for Homeowners and Small Businesses

Every building is different. If you have multiple HVAC units, radiant heating, mini-splits, or a commercial kitchen with hoods and exhausts, winter prep may involve extra steps. For example:

• Geothermal systems: Ensure ground loops are insulated and check antifreeze levels.
• Commercial exhausts: Clear snow and ice from exterior vents to prevent blockages.
• Humidifiers and dehumidifiers: Adjust settings to maintain healthy indoor air without encouraging mold.

It’s always a good idea to consult with a licensed technician who understands the unique needs of your system.

Staying warm through winter storms is all about preparation, quick action, and knowing when to call for emergency hvac help. Don’t wait for the next big freeze to find out your system wasn’t ready.

Call Ace Status Heating now — or reach us anytime at  877-978-1992 .