From refrigerant transitions to regulatory pressure, 2025 proved to be a challenging year for HVACR contractors — and our most-read stories reflect it. Topics surrounding the A2L refrigerant transition, the R-454B refrigerant shortage, and evolving government regulations dominated reader interest, highlighting the operational, compliance, and business hurdles contractors faced throughout the year.

The following list ranks the Top 10 most-read articles on

in 2025, based on total pageviews from our audience, offering a clear snapshot of the issues that mattered most to contractors navigating a year of uncertainty, change, and adaptation.

Discover how Comeau Comfort Systems in Nova Scotia

through unique maintenance techniques and operational insights.

Learn about

for managing flammable A2L refrigerants, including system placement, leak detection, and mitigation measures to protect occupants and equipment.

poses challenges for HVACR contractors, impacting planning, procurement, and customer communication. Industry leaders are responding with strategies and resources.

These actions

for seven home appliances, including central air conditioners.

An in-depth look at the

, offering a comprehensive overview of the most cited federal standards.

HVACR

on goods from Canada, Mexico, and China.

EPA Administrator Lee Zeldin unveils 31 historic deregulation actions, aiming to reduce trillions in regulatory costs. The

on the HVACR industry is highlighted.

As low-GWP (Global Warming Potential) refrigerants become more prevalent due to environmental regulations,

by investing in updated training, tools, and installation techniques.

A 57-year-old CEO from Georgia is

by unlawfully importing 500 cylinders of HFCs from Peru. This is the second prosecution in the US under the Act.

HVAC contractors are

and the implications of the AIM Act. Understand the impact on equipment sales, supply chain, and customer affordability.