HVAC Tips, Advice & News
Free expert advice from On Time Heat & Air — helping Denver metro homeowners save money and keep their HVAC systems running longer.
Comparison Guides
Side-by-side breakdowns to help you choose between equipment options before you buy.
Pricing Guide
Furnace Repair Cost in Denver 2026 — What to Expect
How much does furnace repair cost in Denver? We break down real price ranges for the most common furnace problems — ignition failures, blower motors, heat exchangers and more.
Troubleshooting
AC Running But Not Cooling? 7 Causes & What to Do
Your AC is running but the house won't cool down. Before you call a technician, check these 7 common causes — some you can fix yourself for free.
Buyer Guide
How Long Do HVAC Systems Last? Signs It's Time to Replace
The average AC lasts 12-15 years and furnace 15-20 years — but Colorado conditions affect this significantly. Learn the warning signs your system needs replacing.
More articles
Energy Tips
Should You Turn Off Your AC When on Vacation?
Heading out of town? Here's what to set your AC to, why turning it completely off can cause problems, and how to save money while you're away.
Troubleshooting
AC Running All Day and Won't Stop? 6 Reasons Why
If your air conditioner runs constantly without cycling off, something is wrong. Here are the most common causes and what you can do about each one.
Seasonal Guide
How to Prepare Your Denver Home for the First Freeze
Colorado's first freeze can arrive as early as September. Here's your complete checklist to protect your HVAC system, pipes, and home.
Home Comfort
How to Keep Your Garage Warm in Colorado Winters
Working in a freezing garage is miserable. Here are the most effective ways to add heat — from budget DIY fixes to permanent solutions.
Homeowner Guide
Are HVAC Contractors Licensed in Denver? What You Need to Know
Before you hire any HVAC company, here's what you should know about licensing requirements — and how to verify a contractor is legitimate.
Pricing Guide
How Much Does AC Installation Cost in Denver? (2026)
New AC costs $3,500-$12,000+ in Denver. Here's what affects the price, when to replace vs repair, and how to get the best deal.
Buying Guide
Central AC vs Window Units: Which Is Right for Your Home?
Window units are cheap upfront. Central AC cools your whole house. Here's how to decide for your Denver home and budget.
Troubleshooting
AC Blowing Warm Air? Here Are 5 Common Causes
Your AC is on but blowing warm air. Before you call a technician, check these 5 common causes — some are free fixes.
Maintenance
How Often Should You Change Your AC Filter?
The answer isn't always "every 30 days." Here's how to figure out the right schedule based on your filter, pets, and Denver's dusty air.
Energy Tips
Best Thermostat Settings for Colorado Spring Weather
It's 75°F on Monday and snowing on Wednesday. Here's how to set your thermostat to stay comfortable without wasting money.
Safety
Carbon Monoxide & Your Furnace: What Colorado Homeowners Must Know
Warning signs of CO leaks, proper detector placement, and when to call for emergency furnace inspection.
Savings
Colorado Heat Pump Tax Credit 2026 — Save Up to $2,000
Federal and state tax credits for heat pump installations in Colorado. Eligibility, amounts, and how to claim.
Cost Guide
How Much Does a Ductless Mini Split Cost in Denver?
$3,000 to $8,000 installed — here's what drives the price and how to get the best value.
Troubleshooting
Furnace Not Turning On? 8 Things to Check
Before calling for repair, try these 8 common fixes for a furnace that won't start in cold Denver weather.
Buying Guide
Heat Pump vs Furnace in Colorado: Which Is Right?
Compare costs, efficiency, and real-world performance at altitude to decide between a heat pump and furnace.
Maintenance
Complete HVAC Maintenance Checklist for Colorado
Seasonal DIY tasks plus what your technician should check. Keep your system running efficiently at altitude.
Consumer Tips
7 HVAC Scams in Denver and How to Avoid Them
Fake diagnoses, unnecessary replacements, and bait-and-switch pricing — protect yourself from common scams.
Energy Tips
9 Ways to Lower Your Energy Bills in Denver
Cut your energy bills by 20–40% with these proven tips from Colorado HVAC professionals.
Troubleshooting
HVAC Making Strange Noises? What Each Sound Means
Banging, squealing, clicking, or rattling — each noise points to a different problem. Here's what to do.
Buying Guide
8 Signs You Need a New Furnace
Is your furnace dying? These 8 warning signs mean it's time to start planning a replacement.
Energy Tips
Do Smart Thermostats Actually Save Money in Colorado?
Real savings data from Nest, Ecobee, and Honeywell thermostats in Colorado's extreme climate.
Buying Guide
When Should You Replace Your AC Unit in Denver?
Age, repair costs, efficiency, and refrigerant phase-outs — here's how to decide if it's time for a new AC.
Buying Guide
Carrier vs Trane: Which Is Better for Denver Homes?
Buying Guide
Lennox vs Goodman: Premium vs Value HVAC
Ductwork
5 Signs You Have Leaky Ductwork
Commercial
Commercial HVAC in Denver: Business Owner Guide
Homeowner Guide
First-Time Homeowner HVAC Survival Guide
Air Quality
Why Your Colorado Home Is So Dry
Efficiency
HVAC Zoning: Stop Heating Empty Rooms
Air Quality
Do UV Air Purifiers Actually Work?
Buying Guide
Best Smart Thermostats for Colorado 2026
Technical
R-410A vs R-32: What Homeowners Need to Know
Technical
SEER2 Ratings Explained for Denver Homeowners
Seasonal
Spring AC Startup Checklist
Seasonal
Fall Furnace Prep Before the First Freeze
Repair
Hail Damaged Your AC? What to Do
Efficiency
Attic Insulation and HVAC Efficiency
Troubleshooting
Every HVAC Noise Explained
Homeowner Guide
Home Warranty vs HVAC Warranty
Technical
R-22 Freon Phase-Out: Your Options
Troubleshooting
Why Your Second Floor Is Always Hot
Financing
HVAC Financing: 0% APR and Pitfalls
Troubleshooting
HVAC: What to Fix Yourself vs Call a Pro
Air Quality
Best HVAC Air Filter: MERV Rating Guide
Efficiency
Should You Get a Home Energy Audit?
Homeowner Guide
Are HVAC Extended Warranties Worth It?
Regulations
Colorado HVAC Regulations 2026: What Homeowners and Contractors Need to Know