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Why Are They Called Ductless Mini Splits? A wall-mount mini-split heating and air conditioning unit installed in a new house. A modern heat pump, this unit heats a house in winter and cools in the summer. This type of system eliminates ductwork which is a primary source of inefficiency in a conventional system making this about 30% more efficient. This particular unit has an eye sensor which pans the room looking for hot or cold spots and directs the airflow accordingly.

Why Are They Called Ductless Mini Splits?

September 15, 2025

They’re called ductless mini splits because they don’t require ductwork and consist of two main components—a compact indoor air handler and an outdoor compressor—connected by refrigerant lines. This “split” design allows for efficient, targeted heating and cooling in specific areas.

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How Does Your Central Air Conditioner Cool Your Home?

How Does Your Central Air Conditioner Cool Your Home?

August 18, 2025

Unless you’re an HVAC professional—like the team at M&M Heating and Cooling you probably don’t spend much time thinking about your air conditioner or how it works.

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5 Reasons Why Regular HVAC Maintenance is Essential for Pontotoc County Homeowners

5 Reasons Why Regular HVAC Maintenance is Essential for Pontotoc County Homeowners

July 14, 2025

Are you cool and comfortable in your Pontotoc, home? If so, you can probably thank your air conditioner.

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Thermostat Settings: On vs. Auto Photo of a digital thermostat mounted on a wall with a blue light.

Thermostat Settings: On vs. Auto

June 10, 2025

We all know the difference between the heating and cooling settings on a thermostat.

But what’s the difference between the On or Auto switch? How does this setting impact the heating, ventilation, and air conditioning (HVAC) system in your Tupelo home?

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What’s That Smell Coming From My AC at Startup?

What’s That Smell Coming From My AC at Startup?

May 12, 2025

As the temperatures begin to rise in Mooreville, many homeowners are firing up their air conditioners for the first time in months. But what if, instead of a refreshing blast of cool air, you’re hit with an unpleasant smell?

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Spring AC Maintenance Tips. Photo of a repairman inspecting an air conditioner and giving a thumbs up.

Spring AC Maintenance Tips

April 15, 2025

Spring is finally arriving in Mississippi! The days are getting longer, the flowers are blooming, and you’re probably already thinking about dusting off the patio furniture or tackling that messy garage.

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Why Is My Thermostat Blank? Photo of a digital thermostat mounted on a wall with a blank screen.

Why Is My Thermostat Blank?

March 10, 2025

It is an “Oh no!” moment when you approach your home’s thermostat and see its screen is blank.

Is it serious? Does it mean your furnace, heat pump, or air conditioning is broken? Not necessarily. In fact, most of the time, it is something minor and can be easily fixed.

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4 Factors to Consider When Buying a Heat Pump. Professional Middle Aged HVAC Technician in Red Uniform Repairing Modern Heat Pump Unit. House Heating and Cooling System Theme.

4 Factors to Consider When Buying a Heat Pump

February 14, 2025

So you are looking to invest in a heat pump. You are not alone––many Americans are making the switch.

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4 Reasons to Replace Your Home’s Air Filter

4 Reasons to Replace Your Home’s Air Filter

January 31, 2025

Heating, ventilation, and air conditioning (HVAC) filters and the late comedian Rodney Dangerfield have a lot in common. They both can tout, “I don’t get no respect!” Most people do not realize how pivotal the HVAC air filter is to both their homes and their HVAC systems.

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Why Is the Furnace Pilot Light Going Out? Gas burner flame abstraction long exposure.

Why Is the Furnace Pilot Light Going Out?

December 13, 2024

This issue happens more often than not with older furnaces, and it could be a sign you are ready to upgrade your Tupelo home’s heating and cooling system with a new model. At the 10-year mark, furnaces start to lose efficiency and begin breaking down more frequently.

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Contact the experts at M & M Heating and Cooling

Call us at 662-844-0270!