Engineered Venting.
Delivered.
EXD is the exclusive manufacturer representative for commercial exhaust, high-temperature venting and mechanical draft. We specify with engineers. We supply mechanical contractors. We verify in the field. No field modifications. No change orders.
Same engineering team. New name.
EXD was formerly known as Enervex NorCal. We still represent the same manufacturer-backed exhaust, venting and mechanical draft lines across Northern California, with the same specifying engineers and field support team contractors have relied on for years.
Represented Manufacturers
The full exhaust scope under one roof.
Type I & II Kitchen Exhaust
NFPA 96 · 1,500°F
Grease Duct
UL 1978 · zero-clearance
Specialty Exhaust Applications
Engineered to the process
Factory-Built Chimney
UL 103 · 1,000°F
High-Temp Stack
UL 1738 · 2,000°F
Quench Vent
Saturated · drainable
Heat Recovery
Flue gas economizers
Plume Abatement
Dilution · re-heat
Lab & Fume Exhaust
FRP · 304 / 316L SS
Boiler & Generator Venting
Cat I–IV · positive pressure
Make-Up Air & Tempered MUA
65°F set point
Inline & Upblast Fans
Enervex EBC · RSV
Process Plant Ductwork
Welded · flanged
Acid & Corrosion-Resistant FRP
Derakane 411 / 470
Project Evaluation
Site conditions, regulatory environment, budget and schedule defined before a line is drawn.
Design
Sizing, pressure drop and code alignment. Specs returned with manufacturer-neutral or basis-of-design language.
Submittal
Stamped drawings, cut sheets and BOM in five business days.
Verification
Pre-install survey, install QC and commissioning sign-off. We do not hand over keys until it passes.
Projects engineered without compromise.
Exhaust, engineered end to end.
Not a contractor. Not a distributor. EXD assists consulting engineers with design and specification, supplies mechanical contractors with exact factory packages and verifies every install in the field.
All CapabilitiesAirflow
CFM, static pressure and draft analysis sized to the application.
Pressure
External static, balancing and commissioning verification.
Thermal
UL 1738 and UL 2221 stack design rated to 2000°F continuous.
Mechanical Draft
Demand-controlled, inline and upblast configurations.
Spec & Submittal
Stamped drawings and code-aligned cut sheets in five business days.
Field Verification
Pre-install survey, install QC and commissioning sign-off.