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The Heating & Cooling Blog

By MR. HVAC

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7 Warning Signs of Mold in Your Air Ducts

August 17, 2026

What Mold In Air Ducts Looks Like Most homeowners spot it at the register first, because that is the only part of...

Silver cylindrical capacitor with specifications label and electrical terminals inside an HVAC unit.

What Does an AC Capacitor Do?

August 14, 2026

An AC capacitor is a small cylinder inside your outdoor unit that stores electrical energy and releases it on demand...

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What Is HVAC and What Does It Stand For?

August 14, 2026

What Does HVAC Stand For Each letter covers one job the system handles. H is for Heating, usually a furnace...

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Getting Your HVAC Ready for Winter

August 06, 2026

Why Fall HVAC Maintenance Matters Your heating system has been sitting idle all summer. Dust settles, parts...

Industrial metal ventilation ducts above modern building windows and walls under a skylight ceiling.

Commercial HVAC Maintenance: What Building Owners Should Know

August 03, 2026

What Commercial HVAC Maintenance Actually Covers Commercial HVAC maintenance is a scheduled check of the...

Air conditioning units installed on a rooftop against a building with wooden blinds on windows.

What Is a Split System HVAC?

July 30, 2026

What A Split System HVAC Actually Is A split system HVAC is heating and cooling equipment that is literally split...

Outdoor air conditioning unit mounted on a stone wall outside a dark brick house with surrounding foliage.

How Often Does an Air Heat Pump Need Maintenance?

July 27, 2026

If you own an air source heat pump, it needs professional maintenance twice a year: once in the spring and once in...

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Do You Need a Surge Protector for Your Air Conditioner?

July 23, 2026

What Is an HVAC Surge Protector? An HVAC surge protector is a small device wired into your system's electrical...

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AC Not Working After a Power Outage? Causes and Simple Fixes

July 20, 2026

Why A Power Outage Or Brownout Affects Your AC A full outage is a total loss of power. A brownout is different...

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