Blog - Air Comfort Heating & Air Conditioning
How Heat Pumps Perform in Deep Minnesota Winter
Think heat pumps can’t handle Minnesota winters? Think again. Modern cold-climate air-source heat pumps are designed to operate efficiently even when temps drop below 0°F.
What to know:
They work by extracting heat from outdoor air — yes, even cold air.
Efficiency drops slightly in sub-zero temps, but many models include backup electric or gas heat.
Ductless mini-splits are great for zone control and additions.
With rebates and rising gas prices, heat pumps are becoming a smart investment — even up north.
The Best Thermostat Settings for Energy Savings
Your thermostat has more power than you think — and setting it right can save you serious money. For Minnesota winters, the sweet spot is 68°F during the day (when you're home) and around 60–62°F at night or while you're away.
Tips for optimal savings:
Invest in a smart thermostat — programmable savings are real.
Avoid drastic swings — it takes more energy to catch up.
Layer up indoors instead of cranking the heat.
A few smart changes now can lower your bill and extend your furnace’s lifespan.
Backup Power for Your Heat — Do You Need It?
Minnesota power outages during winter can mean no heat — which can be dangerous. Should you consider a backup power system?
You might need one if:
You live in a rural area with frequent outages
You rely on electric heat or heat pumps
You have medical equipment or special heating needs
Options include portable generators, battery backups, and whole-home systems.
Peace of mind can be priceless when the power goes out.
How to Prevent Frozen Pipes (Critical Tips)
When temps dip below zero, frozen pipes aren’t just an inconvenience — they can cause serious damage. Prevention is key.
Tips to avoid frozen pipes:
Keep cabinet doors open to allow warm air to reach pipes
Let faucets drip overnight during cold snaps
Insulate pipes in basements, garages, and crawlspaces
Don’t set your thermostat lower than 55°F
Stay warm — and keep your pipes flowing.
The Truth About Furnace Cycling in Deep Cold
Short cycling is when your furnace keeps turning on and off too quickly. It can be caused by clogged filters, oversized systems, or faulty thermostats — all of which get worse in extreme cold.
If your furnace seems restless, here’s what to do:
Replace the filter if it’s dirty
Make sure vents are open and unblocked
Have a pro check your system’s sizing and controls
A furnace working smarter — not harder — means longer lifespan and fewer headaches.
The Connection Between Wildfire Smoke and Your Winter Air Quality
It’s not just summer anymore — wildfire smoke can drift into Minnesota year-round. In winter, when homes are sealed tight, air quality suffers.
What to watch for:
Smoky smell indoors despite windows being closed
Allergy symptoms or breathing discomfort
Fixes:
Use air purifiers with activated carbon
Check and replace furnace filters regularly
Add a fresh-air intake system
Breathe easier, even in winter.
Weather, Power Outages, and Your Heating System: Be Prepared
Minnesota storms can knock out power for hours — or days. So what happens to your heat?
Common issues during outages:
Furnace won’t run without power
Risk of frozen pipes
Thermostats lose programming or backup battery fails
How to prepare:
Invest in a backup generator (portable or whole-home)
Use surge protectors on your HVAC system
Ask your tech about manual thermostat options
Don't let the next storm catch you off guard.
Winter Air Quality in Minnesota: Why It Gets Worse and How to Fix It
Sealing up tight for winter might keep the cold out — but it also traps stale air inside. That’s why indoor air quality (IAQ) can plummet during Minnesota winters.
Common winter IAQ issues:
Dry air that irritates skin and sinuses
Trapped allergens, dust, and pet dander
Reduced oxygen exchange from lack of ventilation
Solutions:
Install a whole-home humidifier
Upgrade to HEPA or MERV-13 filters
Consider an HRV/ERV for fresh air circulation
Cleaner air = a healthier winter.
Why Your Furnace Might Struggle During Extreme Cold — And What to Do
When it’s -10°F outside, even a good furnace can struggle. But what’s normal... and what’s a sign of trouble?
Signs your furnace is overwhelmed:
It runs constantly and never reaches the set temp
Some rooms stay cold while others overheat
Your energy bill spikes unexpectedly
What to do:
Seal up drafts around doors and windows
Add insulation in attics and crawlspaces
Ask about dual-fuel or high-efficiency upgrades
Stay ahead of winter’s worst — and don’t wait until your system fails.
How to Prep Your Furnace for a Minnesota Cold Snap
Minnesota winters are no joke — when the wind chill dips below zero, your furnace needs to be in top shape. Before the next cold snap hits, here’s how to make sure your system is ready:
Change your filter — a clogged one makes your furnace work harder.
Check your thermostat settings — set to heat, schedule is accurate.
Inspect vents and intakes — make sure they’re not blocked by snow or debris.
Schedule a quick tune-up — a technician can catch small issues before they become big problems.
Prep now and avoid the emergency calls later — because no one wants to deal with a blanket burrito emergency at 2 a.m.