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PDP/BDP Series

Vertical Power-Vented Gas-Fired Unit Heater

When performance and reliability matter most, the Modine PDP/BDP Power-Vented Gas-Fired Unit Heater stands ready. Built to Modine’s industry-leading standards, the PDP/BDP models combine power-vented efficiency with rugged construction for dependable comfort in commercial, industrial, and large residential environments.

Easy to use and time-tested for quality and durability, the PDP/BDP line provides consistent, energy-efficient heat while reducing installation and maintenance time—making it a favorite among contractors, engineers, and facility managers alike.

Models

  • Model PDP: Power-Vented with Propeller Fan
  • 7 Model Sizes: 150, 175, 200, 250, 300, 350, and 400 MBH
  • Model BDP: Power-Vented with Centrifugal Blower Fan
  • 7 Model Sizes: 150, 175, 200, 250, 300, 350, and 400 MBH

Highlighted Features

Modine commercial gas-fired power-vented unit heater, model PDP, detail view of the back of unit featuring a magnified view of the propeller fan, fan motor, and the fan cage.

Power-Vented Performance

The PDP’s power-vented design ensures clean combustion and maximum fuel efficiency. Engineered for consistent, even heat across large commercial and industrial spaces.
Front detail view of a Modine gas-fired power-vented unit heater, model PDP, showcasing a magnified view of the directional deflector blades and the classic clam shell heat exchanger inside the unit's housing

Built for Durability

A heavy-duty aluminized steel heat exchanger and rugged cabinet design withstand demanding environments—providing reliable performance year after year.

Easy Installation & Service

The PDP features versatile venting options, simplified wiring, and hinged access panels that make installation and maintenance fast and easy—reducing downtime and labor costs.

Product Details & Specifications

Key Features
  • Power-Vented System: Safely exhausts combustion gases outdoors, ensuring clean, efficient operation and consistent comfort.
  • Venting Versatility: Power exhaust can rotate 180°, allowing the unit to be vented vertically or horizontally with the smallest-diameter vent pipe possible.
  • Low-Profile Design: Installs effortlessly in confined areas or overhead.
  • Baked Polyester Paint: Features a neutral-colored, baked-on polyester paint that provides excellent corrosion resistance and durability while blending into a wide variety of environments.
  • Durable Construction: Aluminized steel clamshell heat exchanger resists corrosion and extends product life.
  • In-Cabinet Controls Protection: Fan motors and controls are housed inside the cabinet to protect them from airborne moisture and dust.
  • Flexible Mounting Options: Choose from ceiling or wall configurations for a custom installation.
  • Quiet Performance: Ideal for environments where comfort and low noise matter.
  • Fuel Flexibility: Operates on natural gas or propane for convenience across applications.
  • Thermal Efficiency Up to 83%: Reduces energy use while maintaining reliable output.
  • Pilot-ignition System: Intermittent pilot ignition with a continuous retry control system.
  • Tool-free entry: “Wing” screws allow access to the unit’s interior without needing a screwdriver or nut driver.
  • ETL Certification: ETL certified for commercial and industrial use in the US and Canada.
  • Proudly Designed, Engineered, and Assembled in the USA: Commitment to quality and craftsmanship in every unit.

Options

Fuel Type:

  • Natural Gas
  • Propane

Available Models:

  • Propeller Fan (PDP)
  • Centrifugal Blower Fan (BDP)

Model Sizes:

  • 7 Model Sizes: 150, 175, 200, 250, 300, 350, and 400 MBH

Heat Exchanger Material:

  • Aluminized Steel (Standard)
  • 409 Stainless Steel (Optional)
Supply Voltage:
  • 115V/1PH/60Hz
  • 208V/1Ph/60Hz
  • 230V/1Ph/60Hz
  • 208V/3Ph/60Hz
  • 230V/3Ph/60Hz
  • 460V/3Ph/60Hz
  • 575V/3Ph/60Hz

Iginiton Type:

  • Single-Stage, Intermittent Pilot Ignition
  • Two-Stage, Intermittent Pilot Ignition

Accessories

PTC = Propeller, BDP = Blower

Venting Accessories:

  • Vent Caps (Sizes 150–200: 5″, Sizes 250–400: 6″)

Gas Conversion Kits:

  • Propane Conversion Kits (available for single-stage and two-stage IPI units with control codes 30, 31, 32, 33, 63, or 64)
  • Natural Conversion Kits (available for single-stage and two-stage IPI units with control codes 85, 86, 87, or 88)

Blower-Specific Accessories:

  • Blower Enclosures
  • Filter Rack (requires addition of Blower Enclosure)
  • Belt Guard Accessory
  • Discharge Transition (fits 18″ or 24″ Polytube diameters)
  • Specialty Discharge Nozzles (40° or 90° Double Deflection Nozzle, 40° Double Deflection Splitter Nozzle, or 5-Way Downflow Nozzle) – available for selection through the Modine Breeze™ AccuSpec Program

Air Discharge & Deflection Accessories:

  • Vertical Deflectors
  • Downward Air Deflector Hoods (30°, 60°, and 90° downturns)

Thermostats & Controllers:

  • Room Thermostat (Modine Pro1 T-501M)
  • Two-Stage Thermostat (Modine Pro1 T-715M)
  • WiFi Thermostat (Modine Pro1 T855iSH)
  • Energy Saver Kit (35°–95°F range)

BMS (Building Management System):

  • Factory-installed BMS

Electrical & Miscellaneous Controls:

  • Step-Down Transformer Accessory (shipped loose for voltage matching)
  • Thermostat Guard (Modine Pro1 T-150, clear plastic with tumbler lock)
  • SPST Relay (25V) (required for room stats with Fan Auto/On switching)
  • Summer-Winter Toggle Switch (S/W Switch; Max 15A @ 125V)
  • Fisher Type HSR 3/4″ Pressure Regulator (Natural Gas only; 0.5–80 PSI inlet, 6–8” W.C. outlet)

Mounting, Suspension & Maintenance:

  • Pipe Hanger Kit (Adapters):
    • Includes 2 adapters for sizes PDP 150 through PDP 300
    • Includes 4 adapters for sizes PDP 350 through PDP 400
    • Includes 4 adapters for sizes BDP 150 through BDP 300
    • Includes 6 adapters for sizes BDP 350 through BDP 400
  • 2-Point Suspension Kit (converts 4-point to 2-point suspension; offered specifically for PDP 350–400)

Warranty

Applications

The PDP/BDP is designed for large industrial and commercial facilities where reliable, efficient heat coverage is critical.

Common applications include:

  • Warehouses and distribution centers
  • Manufacturing and processing plants
  • Vehicle service bays and garages
  • Agricultural and storage facilities
  • Large commercial workshops or utility buildings

modine gas-fired power-vented unit heater, model PDP, ceiling mounted in an industrial garage with large bay door in the background

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