Stelpro Canada

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All Systems Operational

Since Tuesday, 23 February 2021, 04:00
Eastern Time Zone

  • logo Flextherm

Make-Up Air Unit

A literal breath of fresh air


This unit delivers temperate fresh air and ensures a well-ventilated, comfortable home for occupants. Its continuously modulating heating elements allow the unit to heat fresh air at a lower cost. Compact and flexible, the MUAA can be installed in a variety of positions (vertical, horizontal, up or down) and can also be installed in confined spaces. This efficient unit meets indoor air quality (IAQ) standards.

Product images



  • The most compact and lightweight unit on the market
  • Can be installed in a variety of positions
  • Easy to install thanks to its built-in temperature sensor
  • Easy access to electrical and mechanical components


  • 22-gauge galvanized steel cabinet resistant to corrosion


  • Removable electric elements with automatic thermal protection
  • Manual thermal protection
  • Built-in temperature sensor
  • Spring backdraft damper with gasket
  • Easily accessible, washable aluminum filter


  • Open, nichrome elements
  • Modulation of the elements by the SCR technology to maintain a constant temperature using only the required energy


  • Wall control (MUAA06 120V-1P and 240/208V-1P models)
  • Terminal strip for exhaust fan (MUAA06 120V-1P and 240/208V1P models)
  • Current switch to synchronize with activation of an exhaust fan (other models)


  • 6 in. to 12 in. round duct
  • Horizontal air flow for all models
  • Vertical air upflow or downflow on 6 in. to 10 in. models only
  • “Zero inch” clearance from flammable materials


  • Three years, five years on elements