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

Thermostat Settings: On vs. Auto

September 30, 2025

We all know the difference between a thermostat’s heating and cooling temperature settings—that’s the easy part. But what’s the difference between the On and Auto fan setting? How does this small setting impact your HVAC system’s performance and energy usage in your Sussex home?

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woman adjusting thermostat, shivering while wearing a sweater.

Why Is My Heat Pump Turning On and Off Frequently?

September 15, 2025

According to the U.S. Department of Energy, proper sizing improves energy efficiency, indoor air quality, comfort, and overall system performance.

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3 Tips to Prevent AC Breakdown During a Heat Wave.  Photo of an air conditioning unit being worked on by a technician outside of a brick home.

3 Tips to Prevent AC Breakdown During a Heat Wave

August 31, 2025

An air conditioner is your lifeline during a prolonged heat wave.

This life-saving comfort system is a necessity when temperatures soar and linger in Mequon, as they have under the heat dome that has scorched across Wisconsin.

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Why Air Duct Cleaning Is Important. Professional Air Duct Cleaning.

Why Air Duct Cleaning Is Important

August 15, 2025

Just like your lungs are an important connection to the rest of your respiratory system, your home’s ductwork, or air ducts, are importantly connected to your heating, ventilation, and air conditioning (HVAC) system.

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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 31, 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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5 Ways to Save Money on Your AC and Summer Energy Bill

5 Ways to Save Money on Your AC and Summer Energy Bill

July 15, 2025

As summer approaches in Germantown, most residents are all looking to save some pennies wherever possible. So why not start with your costly energy bill? After all, the US Department of Energy says air conditioning can account for 35 to 40 percent of your utility bill.

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Your HVAC System Can Enhance Sleep. Asian women She is in bed and was waking up in the morning. She felt very refreshed.

Your HVAC System Can Enhance Sleep

June 30, 2025

The sound of a well-maintained heating, ventilation, and air conditioning (HVAC) system is like a lullaby for a good night’s sleep.

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Home inspection of central air unit by a maintenance worker.

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

June 15, 2025

According to the U.S. DOE, a simple task such as changing the air filter on your HVAC system can improve efficiency by up to 15 percent.

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

What Is an Air Handler?

May 30, 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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What’s That Smell Coming From My AC at Startup?

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

May 15, 2025

As the temperatures begin to rise in Mequon, 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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Need HVAC Service?

Contact the experts at Interstate Heating Co..

Call us at 262-246-4772!