Top 8 HVAC Conferences in March 2026

1. 1
   GoldOrbital’s proprietary rating for how valuable a conference is for selling to businesses in that vertical. Based on attendee quality, exhibitor ROI, and industry relevance.

   Catalyst PHCC

   Mar 23–25, 2026·Oklahoma City, OK·$$$ ticket

   Our take

   Catalyst PHCC sits firmly as a strong-performing show across the HVAC space. Ticket pricing at $$$ reflects a deliberate barrier that filters for committed buyers, and our team places it among Gold events informed by verified attendance composition, post-show exhibitor outcomes, and editorial assessment. Exhibitors focused on the HVAC industry, this event merits inclusion in your annual conference calendar.

2. 2
   BronzeOrbital’s proprietary rating for how valuable a conference is for selling to businesses in that vertical. Based on attendee quality, exhibitor ROI, and industry relevance.

   ACCA Conference & Expo

   Mar 15–18, 2026·Las Vegas, NV·500–1k attendees·$$ ticket

   Our take

   With 500–1k industry professionals on the floor, ACCA Conference & Expo sits firmly as an accessible show across the HVAC space. Ticket pricing at $$ signals a serious operator audience, and our team places it among Bronze events reflecting a holistic view of buyer density, lead quality, and industry footprint. Exhibitors focused on the HVAC industry, this event should be on your shortlist.

3. 3
   SilverOrbital’s proprietary rating for how valuable a conference is for selling to businesses in that vertical. Based on attendee quality, exhibitor ROI, and industry relevance.

   ASEAN RHVAC & Cleanroom Industry Expo

   Mar 25–27, 2026·Bangkok, TH·10k+ attendees·$ ticket

   Our take

   With 10k+ industry professionals on the floor, ASEAN RHVAC & Cleanroom Industry Expo sits firmly as a solid mid-tier show across the HVAC space. Ticket pricing at $ implies a vetted crowd of decision-makers, and our team places it among Silver events informed by verified attendance composition, post-show exhibitor outcomes, and editorial assessment. For teams targeting the HVAC category, this gathering is worth a serious look.

4. 4
   SilverOrbital’s proprietary rating for how valuable a conference is for selling to businesses in that vertical. Based on attendee quality, exhibitor ROI, and industry relevance.

   CIBSE Technical Symposium

   Mar 26–27, 2026·Loughborough, GB·<500 attendees·$$ ticket

   Our take

   Considering <500 registered participants, CIBSE Technical Symposium stands as a Silver-rated gathering for the HVAC vertical. Registration at $$ implies a vetted crowd of decision-makers, leading Orbital to rate it as a Silver event using a framework weighted toward decision-maker access and verified exhibitor ROI. For teams targeting the HVAC space, this gathering is worth a serious look.

5. 5
   SilverOrbital’s proprietary rating for how valuable a conference is for selling to businesses in that vertical. Based on attendee quality, exhibitor ROI, and industry relevance.

   HVAC Innovation Conference

   Mar 16–17, 2026·Sydney, AU·500–1k attendees·$$$ ticket

   Our take

   Considering 500–1k registered participants, HVAC Innovation Conference stands as a Silver-rated gathering for the HVAC vertical. Registration at $$$ implies a vetted crowd of decision-makers, leading Orbital to rate it as a Silver event reflecting a holistic view of buyer density, lead quality, and industry footprint. Sales teams working the HVAC industry, this show belongs on any serious exhibitor's planning list.

6. 6
   SilverOrbital’s proprietary rating for how valuable a conference is for selling to businesses in that vertical. Based on attendee quality, exhibitor ROI, and industry relevance.

   Illinois PHCC Expo

   Mar 20–20, 2026·Oakbrook Terrace, IL·500–1k attendees·$ ticket

   Our take

   Based on 500–1k annual attendees, Illinois PHCC Expo ranks solidly as a reliable conference within the HVAC sector. Entry at $ implies a vetted crowd of decision-makers, which is why Orbital rates it at Silver reflecting a holistic view of buyer density, lead quality, and industry footprint. Sales teams working the HVAC market, this conference should be on your shortlist.

7. 7
   SilverOrbital’s proprietary rating for how valuable a conference is for selling to businesses in that vertical. Based on attendee quality, exhibitor ROI, and industry relevance.

   Jobber Summit

   Mar 4–4, 2026·Virtual·Virtual attendees·$ ticket

   Our take

   Given its Virtual expected attendees, Jobber Summit has cemented its place as a dependable event in the HVAC industry. Attendance pricing of $ suggests a filtered, high-intent room, and the Orbital team rates it in the mid tier using a framework weighted toward decision-maker access and verified exhibitor ROI. Operators building pipeline in the HVAC industry, this event is worth a serious look.

8. 8
   BronzeOrbital’s proprietary rating for how valuable a conference is for selling to businesses in that vertical. Based on attendee quality, exhibitor ROI, and industry relevance.

   Lennox LIVE

   Mar 10–12, 2026·New Orleans, LA·1k–2k attendees·$ ticket

   Our take

   Based on 1k–2k annual attendees, Lennox LIVE ranks solidly as an entry-level conference within the HVAC sector. Entry at $ implies a vetted crowd of decision-makers, which is why Orbital rates it at Bronze reflecting a holistic view of buyer density, lead quality, and industry footprint. Sales teams working the HVAC market, this conference belongs on any serious exhibitor's planning list.

Quick reference

All 8 conferences at a glance