Recommended Thermostat Settings for Summer and Winter: Save Energy & Stay Comfortable
George Stahov
Case Study: How We Brought a Walk-In Freezer Back to Life at Hawthorn Mall in Vernon Hills, IL
George Sthahov HVAC/r engIneer
Why Is My AC Blowing Hot Air?
If your air conditioner is blowing hot air, it’s a frustrating experience, especially during sweltering weather. Understanding the root causes and knowing how to address them can help restore the comfort of your home. Below, we explore the common reasons why an AC is blowing hot air and offer practical solutions. 6 Common Reasons Your […]
When Should You Repair or Replace Your AC?
Deciding whether to repair or replace your AC unit is a common dilemma for homeowners. Making the right choice depends on several factors, including the age of your system, repair costs, energy efficiency, and technological advancements. Let’s explore these considerations in detail to help you make an informed decision. 4 Signs Your Air Conditioner Needs […]
R454B refrigerant replaces R410A in 2025.
Introduction to R-454B Refrigerant R-454B refrigerant, also known by its trade name Opteon™ XL41, is a next-generation low global warming potential (GWP) refrigerant solution designed for use in air conditioning (AC) and refrigeration systems. It serves as a more environmentally friendly alternative to traditional hydrofluorocarbon (HFCs) refrigerants like R-410A, which have higher GWP and contribute […]
What Is Annual AC Maintenance, and Why Is It Important?
Yearly air conditioning unit maintenance is an essential step to ensure your AC operates efficiently, reliably, and safely. Beyond providing comfort during scorching summers, proper maintenance extends the lifespan of your AC system, lowers energy costs, and reduces the likelihood of unexpected breakdowns. But is yearly AC maintenance worth it? Let’s explore the key aspects, […]
What Is Commercial Refrigeration Maintenance? A Pro’s Guide to Efficiency
Commercial refrigeration maintenance involves a proactive approach to ensuring refrigeration systems in businesses like restaurants, grocery stores, and warehouses operate efficiently, reliably, and safely. This essential practice preserves perishable goods, minimizes operational disruptions, and maximizes energy efficiency. By following a commercial refrigeration maintenance checklist, businesses can avoid costly repairs, extend equipment lifespan, and maintain optimal […]
Common Problems With Commercial Refrigerators and How to Troubleshoot Them
Commercial refrigerators are indispensable for businesses in various industries, ensuring the safety and quality of perishable products. However, like any mechanical equipment, these units can face issues that compromise performance. Understanding common commercial refrigeration issues and employing effective troubleshooting techniques can save time, money, and inventory. Here’s a detailed guide to addressing typical problems with […]
6 Pros and Cons of Heat Pump Systems: Is a Heat Pump Worth It?
Heat pump systems have become a popular choice for homeowners and businesses seeking energy-efficient heating and cooling solutions. These versatile systems provide both heating and cooling capabilities, making them an integral part of modern HVAC systems. However, like any technology, heat pumps have their advantages and disadvantages. This guide explores the pros and cons of […]
Big Changes in The HVAC Industry 2026
In late 2023, the EPA released their final ruling for the Technology Transition Program spelled out in the AIM Act. This ruling will specify the new requirements for installing new HVAC equipment with Puron Advance™/R-454B and servicing existing systems with Puron®/R-410A in the field. A breakdown of the final ruling and how it applies to […]