Division 23: Heating, Ventilating, and Air Conditioning (HVAC)
Division 23 covers HVAC: ductwork, air devices, hydronic piping, equipment, insulation, controls, and testing and balancing.
MasterFormat group: Facility services
What Division 23 includes
- Metal ducts and duct accessories
- Diffusers, registers and grilles
- Air handling units and rooftop units
- Hydronic piping and pumps
- HVAC insulation
- Testing, adjusting and balancing
Who bids Division 23
Mechanical and sheet metal contractors.
What an estimator should check
- 01Equipment schedules against the plans.
- 02Duct construction and pressure class in the spec.
- 03Controls and starters: who carries them.
- 04Fire and smoke dampers on the life safety plan.
Takeoffs in Division 23
Takeoff Tool reads one spec section, counts the items on the plans and flags where the spec and the drawings disagree. Each trade page says if the trade is live or opening.