NW Arkansas ASHRAE NOVEMBER Membership Meeting
Agenda for November 5, 2026:
11:30 - 11:45 Welcome and Announcements
11:45 - 01:00 Join us for a discussion on Multistory Exhaust Systems
Topic:
Join us for a discussion on multistory exhaust systems for multi-family and multistory buildings 4 stories or more.
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It looks at code
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dos and don’ts
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methods for laundry, bathroom
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residential kitchen exhaust systems
Guest Speaker:
Tim has spent his entire career in the venting industry. He began as an applications engineer designing draft control systems for boilers, water heaters, and dryer exhausts across North America. In 2007, he co-founded a company that delivered web-based chimney design calculators to major manufacturers. Since 2012, his firm, RM Manifold Group, Inc., has produced commercial and industrial draft control devices, and today advances active smoke control and PurgeSafe™ — LF Systems’ next-generation A2L refrigerant leak ventilation for code-compliant shaft safety in modern, low-GWP buildings. He developed the first multi-family high-rise exhaust system that reads above and below the neutral pressure plane. Tim holds a BSME from the University of Kansas and several patents in the field.
WORK EXPERIENCE
• Owner, RM Manifold Group, Inc.
• Director of Research and Development, RM Manifold Group, Inc. dba US Draft Co., LF Systems, KW-Draft
EDUCATION
• BSME, University of Kansas, 2001
COMMITTEE MEMBERSHIPS
• ASHRAE TC 6.10 Fuels and Combustion — Chair, 2021–2023
• Technical Committee Member, ANSI Z21.66 Dampers
• Voting Member, UL STP 378 — Standard for Draft Control
• Voting Member, UL STP 127 — Standard for Factory-Fabricated Fireplaces
• Voting Member, UL STP 103 — Standard for Factory-Fabricated Chimneys
• Voting Member, NFPA 54 — National Fuel Gas Code
• Voting Member, NFPA 211 — Chimneys, Fireplaces, Vents, and Solid Fuel-Burning Appliances
• Voting Member, Texas Boiler Rules Committee
PATENTS & ACCOMPLISHMENTS
Multiple U.S. patents for draft control and building exhaust and stairwell pressurization systems:
US 11,766,578 B1 · US D727,489 S · US D726,896 S · US 8,708,673 B1 · US D690,001 S · US 8,267,759 B2 · US 12,320,542 B2 · US 10,443,840 B2
**Limited Seating for In-Person, no late registrants allowed. Must have reservation to attend. If you have any questions or problems with registration, please email or call Jennifer Smittle 479-800-0570**
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