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HVAC Knowledge Center

HVAC Tips, Guides & Expert Advice

Practical heating and cooling advice from the Mountain States Mechanical team. Everything you need to keep your Northern Colorado home comfortable and energy-efficient.

Featured

Furnace Not Blowing Hot Air? Here is What to Check Before You Call

Your furnace is running but the air coming out is cold or lukewarm. Before you panic, there are several things you can check yourself. Some fixes take less than five minutes.

March 2026 5 min read Troubleshooting
Troubleshooting 5 min read

Furnace Not Blowing Hot Air? Here is What to Check

Your furnace is running but the air is cold. Walk through these simple checks before calling for repair.

Maintenance 4 min read

How Often Should You Change Your HVAC Filter?

The answer depends on your filter type, pets, allergies, and how dusty Northern Colorado gets. Here is the real schedule.

Troubleshooting 6 min read

AC Not Cooling Your House? 8 Things to Check

When your AC is running but the house stays warm, something is off. Here are the most common causes and what you can do.

Buying Guide 7 min read

Best Furnace for Colorado: High-Altitude Heating Guide

Colorado homes sit at 5,000+ feet. That changes which furnaces work best. Here is what to look for and which brands perform at altitude.

Maintenance 5 min read

The Complete HVAC Maintenance Checklist for Colorado Homeowners

Season-by-season guide to keeping your heating and cooling system running efficiently in Northern Colorado.

Energy Savings 5 min read

10 Ways to Lower Your Heating Bill This Winter

Practical tips that actually make a difference on your energy bill during Colorado winters. No gimmicks, just what works.

Buying Guide 6 min read

5 Signs It Is Time to Replace Your Furnace

Repair or replace? Here are the clear signs that your furnace is costing you more to keep running than a new one would.

Energy Savings 4 min read

Best Thermostat Settings to Save Money (Without Freezing)

The exact temperatures that balance comfort and savings, plus smart thermostat tips that actually reduce your bill.

Seasonal 4 min read

How to Prepare Your AC for Northern Colorado Summers

Spring is the time to get your cooling system ready. Do these things now so you are not sweating when the heat hits.

Troubleshooting 5 min read

HVAC Making Strange Noises? What Each Sound Means

Banging, squealing, clicking, rattling. Each noise tells you something different. Here is how to decode what your system is saying.

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