Illinois households face a recurring tradeoff: bring in enough outdoor air for health and comfort, or keep heating and cooling costs under control. In many homes, that balance is difficult to maintain with traditional ventilation approaches—particularly when windows are closed for much of the year.

Energy Recovery Ventilators (ERVs) offer an alternative. By moving stale indoor air out and drawing fresh outdoor air in, ERVs can improve ventilation without wasting as much conditioned energy. The result is steadier indoor air quality alongside better efficiency.

Fresh air matters—especially when winters tighten homes

During long heating seasons in Illinois, indoor spaces often become sealed to reduce drafts and energy loss. While that can help comfort, it can also reduce the exchange of air that removes moisture, odors, and pollutants. Poor ventilation can contribute to problems such as lingering cooki ... Read more »

Gas line installation, replacement, and certain maintenance activities in Illinois generally require permits, inspections, and compliance with multiple layers of code. Requirements can vary based on whether the work is in a building or on/near utility-owned infrastructure, and whether the job is performed by a licensed contractor, a utility, or in coordination with a local jurisdiction.

Because gas systems are high-risk infrastructure, Illinois’s approach combines technical code standards (adopted building/fire codes) with safety-focused regulations. Before starting, contractors and property owners should confirm the applicable permit path with the local building department and the relevant gas utility or pipeline operator.

Key codes and standards commonly referenced

For most building-related gas work, Illinois jurisdictions typically rely on adopted versions of the International Fuel Gas Code (IFGC) and ... Read more »

Radon is a radioactive gas that forms in the ground and can seep into homes through cracks in floors, walls, and foundations. Because it is invisible and has no smell, the only practical way to know whether your home has elevated levels is to test.

Illinois’ weather and housing stock—ranging from basements to slab-on-grade homes—mean radon pathways can vary widely even between nearby properties. That’s why experts recommend testing at the address, not relying on neighborhood averages.

When should you test in an Illinois home?

If you haven’t tested before, schedule a test as soon as possible. You should also retest if you move, finish a basement, seal major openings, install a new HVAC system, or make other structural changes that could alter airflow and pressure.

For many homes, radon testing is most informative during typical living conditions. Use the instr ... Read more »

UV air purifiers—especially systems using UV-C light—are often marketed as a high-impact way to improve indoor air quality in HVAC setups. The short answer is that they can work, but “do they actually work?” depends on how the device is designed, where the UV light is placed, and whether it provides enough UV dose to the air or surfaces it’s intended to treat.

Unlike filters that physically trap particles, UV-C in HVAC applications works by damaging the genetic material of microorganisms (like bacteria and viruses) so they can’t reproduce. However, that effect is not automatic: it requires sufficient UV intensity, the right exposure time, and appropriate airflow paths that bring air close to the UV source.

What UV in HVAC systems is (and isn’t) doing

In many HVAC installations, UV-C is installed in one of two places: inside air handlers near evaporator coils, or in uppe ... Read more »