The refrigerant rules changing around 2025 are often framed as a simple bump in new system prices, but the real story runs ...

When working on a refrigeration system, technicians may occasionally come across one where the type of refrigerant is unknown. Either the system’s data plate is missing or unreadable, or the ...

When a contractor suggests installing equipment that still uses last year’s refrigerant, you are not just choosing a model ...

In some respects, servicing today’s refrigeration systems is no more complicated than it ever has been. What has changed, however, is the need to understand the differences in the newer refrigerant ...

Since this column's inception, we've received a substantial number of questions concerning air-conditioning troubleshooting. Answering each one would take quite some time, but we will attempt to ...