van Zelm designs HVAC systems and controls for all building types, working diligently to create sustainable solutions through the integration of radiant systems, natural ventilation, solar thermal, and other approaches. Our knowledge in the areas of analyzing and selecting heating, ventilation, and air conditioning systems for unique and complex facilities allows us to apply the most effective mechanical solutions to each project design. We work to achieve sustainable and efficient designs that align closely with the needs of each client and project.

  • Master Planning
  • Heating, Ventilating and Air Conditioning (HVAC)
  • Steam and Hot Water Boiler Plants
  • Chilled Water Plants
  • Heating & Humidification Systems
  • Cooling and Dehumidification Systems
  • Thermal Storage Systems
  • Advanced Technologies
    (Under Floor Air Distribution, Radiant Heating and Cooling, Displacement Ventilation)
  • Space/Occupant Comfort Analysis
  • Controls and Instrumentation Systems
  • Life Cycle Cost Analysis
  • Heat Recovery Technologies
  • Infrastructure Design
  • Mission Critical Infrastructure and Distribution
  • Power Generation System Modeling
    – Thermodynamic Heat Balance