In this episode of the FDNY Pro Podcast, host FDNY Battalion Chief Anthony Pascocello welcomes returning guests Captain Chris Collier, Captain Dan Gordon, and Lt. James Pirot, as well as new guest FDNY fire code counsel Kelly Carr, to discuss the challenges that HVAC systems and refrigerants pose on the fireground. They cover recent operational challenges they’ve encountered, adapting to the environmentally friendly A2L refrigerants and their associated fire risk, and the impact all of this has on fire code and response strategies. They also give a brief summary of what is being offered at the 2026 FDNY High Rise Symposium.