Why Is My Thermostat Blank? Blank space on screen of thermometer.

Why Is My Thermostat Blank?

August 15, 2025

Is this a serious issue—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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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?

July 18, 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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Prepare for Hot Weather With an Air Conditioning Tune-up. Photo of a woman trying to cool off in the hot sun using a cold water bottle.

Prepare for Hot Weather With an Air Conditioning Tune-up

July 11, 2025

July 17 is the coolest date on the calendar.

It marks National Air Conditioning Day, commemorating the work of Willis Carrier, the father of the modern-day indoor air conditioning system. It is the perfect time to put your feet up, chill out, and luxuriate in the cool comfort of your Colorado home.

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Why You Need Whole-House Humidity Control. Condensation on the inside of a window.

Why You Need Whole-House Humidity Control

June 26, 2025

Everyone knows temperature plays a vital role in comfort and indoor air quality (IAQ).

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Why Is My AC Short Cycling?

Why Is My AC Short Cycling?

June 10, 2025

Your AC cannot make up its mind. One minute, it runs. Then it stops. Then it runs again.

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Does an AC Kill Mold? Photo of a hand in a yellow rubber glove, wiping a blue wall or table with a pink cloth.

Does an AC Kill Mold?

May 30, 2025

Your air conditioner (AC) can do several things––keep your Colorado home’s indoor air cooler than outdoor temperatures, help to keep indoor airborne allergens at bay, and help keep your home’s humidity low. But one thing it can’t do is kill mold.

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What Is an Air Handler? Service Man Working on Furnace.

What Is an Air Handler?

May 12, 2025

The same goes for a heat pump. The outdoor unit might be in perfect working condition. Still, the heating and cooling process stops without an indoor evaporator coil, connecting refrigerant lines, and a fan to blow conditioned air through ductwork.

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Family sitting in front of fans in living room.

3 Signs It’s Time For a New AC

April 22, 2025

According to the U.S. Department of Energy (DOE), high-efficiency air conditioners can reduce energy usage by 20 to 50 percent per year.

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6 Ways Your Furnace Keeps You Safe

6 Ways Your Furnace Keeps You Safe

April 11, 2025

Your fuel-burning furnace has a number of mechanisms allowing it to run safely and effectively. These features prevent fires and protect your indoor air quality (IAQ). They also work to prevent internal errors from damaging large portions of your furnace.

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Ductless Mini Splits for Historic Homes. Young woman switching on air conditioner while sitting in armchair at home.

Ductless Mini Splits for Historic Homes

March 18, 2025

Historic homes are treasures, snapshots in time with their unique architecture and craftsmanship. But these cherished dwellings often present a challenge: how to achieve modern comfort without sacrificing their historical integrity.

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Need HVAC Service?

Contact the experts at Cool Sunshine Heating & Air Conditioning.

Call us at 303-287-1846!