When most people think about indoor comfort and air quality, their minds go straight to the thermostat setting or the type of HVAC system in their home. But what if the real game-changers are things you rarely think about? Some of the most important factors affecting your home’s comfort and air quality are hidden in plain sight — or completely hidden, like your air ducts.
Regular duct inspection, thermostat calibration, and considering heat or energy recovery ventilators can make a huge difference in how your home feels and how healthy your air is. Here’s what we recommend for getting the most out of your HVAC system in Cincinnati, OH.

Ductwork
Let’s start with your ductwork. Your ducts are the circulatory system of your HVAC setup, distributing warm or cool air throughout your home. Over time, leaks or gaps in the ductwork can develop, leading to air loss, inconsistent temperatures, and even increased utility bills. Worse still, these leaks can pull in dust, allergens, and pollutants from attics or crawl spaces and circulate them through your living areas.
A thorough duct inspection can reveal these issues, and proper duct sealing ensures that air is flowing efficiently and cleanly where it’s supposed to go. This simple maintenance step often goes overlooked but can be one of the most effective ways to improve both comfort and air quality.
Thermostat
Next, consider your thermostat. It might look like a small, unassuming device, but if it’s not properly calibrated, your entire HVAC system could be running inefficiently. An inaccurate thermostat can lead to your system running longer than it should, creating uncomfortable temperature swings and spiking your energy bills. Calibration ensures your thermostat accurately reflects the temperature in your home and communicates properly with your HVAC system. A quick check-up by a professional can save you money and help you stay comfortable year-round.
HRVs and ERVs
Finally, for those looking to take their indoor air quality to the next level, heat recovery ventilators (HRVs) and energy recovery ventilators (ERVs) are technologies worth exploring. These systems bring fresh outdoor air into your home while minimizing energy loss.
HRVs and ERVs work by exchanging stale indoor air with fresh, filtered air, all while recovering heat or cooling energy from the outgoing air to temper the incoming air. This creates a balanced, energy-efficient ventilation system that can significantly reduce humidity, control odors, and improve overall air quality — especially important in newer, airtight homes where natural airflow is limited.
While these may not be the flashiest upgrades, they are surprisingly impactful. Small improvements and regular maintenance can lead to big gains in comfort, efficiency, and air quality. The best way to get started? Talk to a member of our top-notch team of HVAC professionals. We can assess your current system, discuss your options, and recommend the right solutions based on your home’s unique needs.
Don’t wait until you’re dealing with high bills or allergy flare-ups to take action. Sometimes, the biggest improvements come from the most unexpected places. Schedule a conversation with an HVAC expert today and uncover the surprising ways you can breathe easier and live more comfortably at home.
Contact JM Mechanical Heating & Cooling today to schedule HVAC services in Cincinnati, OH.