Due to its low cost and compact design, Modine’s PD propeller unit heater is the logical choice for many unit heater applications. The model PD is a gas-fired, gravity-vented propeller unit heater that provides application versatility, ease of installation, low installed cost, long life and excellent heat-throw. Designed for overhead suspended mounting, this heater only requires venting, gas, and electric service connections prior to operation.
Propeller fan units are classified as zero-static-pressure type, and should not be used with velocity-generating discharge nozzles or ductwork connections.

The model BD blower is a gas-fired, gravity-vented blower unit heater, and is usually selected in place of the model PD for one or more of the following reasons:

• To overcome static pressures.
• Where several rooms or areas are to be served by a remote heat source.
• To provide heat, filtered air and ventilation, all from a single source.
• When quiet operation is important.
• For zone control over heating and ventilation.
• For spot heating or high mounting-heights where special discharge nozzles may be required

For applications requiring a low profile unit, Modine offers the Hot Dawg® unit heater. The Hot Dawg may be installed in residential or commercial applications just one inch below the ceiling. The superior quality matched with the following features makes the Hot Dawg unit heater an easy choice for a variety of applications.

• Hush-puppy quiet operation.
• Uses natural or propane gas.
• Certified for residential, commercial and industrial use.
• Low-profile design and neutral color to blend in with decor.
• Lightweight, easily installs 1” from ceiling with only 2 angle brackets (included).
• Install quickly and easily with field wiring connections and knockouts for quick access to gas and electricity.
• Standard power exhaust simplifies side-wall or roof venting with small-diameter vent pipe.
• Right or left hand controls available on all 30-75 units. Gas, electrical and flue connections can be changed by simply flipping the Hot Dawg over.
• Permanently-lubricated motor for trouble-free dependability.
• Full 10-year warranty on heat exchanger.

HDB Propeller Blower Unit Heater Models Power Vented Unit Heaters