Vertical Power Vented Unit Heater (PDP)

Vertical Power Vented Unit Heater (PDP)

A power vented unit gives you many added advantages including:

  • Versatility allows air to blow from the top of the greenhouse or through ducts
  • Heaters are indirect fired, allowing all combustion products to be vented to the exterior of the greenhouse and protecting sensitive plants from toxins found in the products of combustion
  • Modine gas-fired unit heaters maintain a minimum 80% efficiency, maximizing seasonal efficiency through the use of a collector box and the power exhauster
  • Optional finger-proof fan guard for operation at low mounting heights
  • A 100% shut-off, intermittent pilot-ignition system with continuous retry, at no extra charge. The ignition system allows for units to be field-converted to propane, if desired
  • A safety pressure-switch to assure safe venting conditions
  • Designed to utilize the smallest-diameter vent pipe possible
  • A level hanging mechanism for easy field adjustments after adding accessories that may change the unit's center of gravity


Modine's PDP power vented unit heaters are inexpensive to install, easy to use and offer excellent in-service economy. Our gas fired heaters are available in units rated from 150,000 to 400,000 BTU/hr. These units provide air circulation to reduce dead spots in the greenhouse, reducing high moisture areas that promote mold growth.

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