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PTP/BTP Series

Horizontal Power-Vented Gas-Fired Unit Heater

When you need powerful, energy-efficient heat in tight commercial spaces, the Modine PTP/BTP Horizontal Power-Vented Gas-Fired Unit Heater delivers. Built for performance and engineered for durability, the PTP/BTP models provide dependable performance in a sleek, space-saving design.

With up to 83% thermal efficiency, corrosion-resistant materials, and quiet operation, the PTP/BTP is ideal for applications where reliability, airflow control, and installation flexibility matter most.

Models

  • Model PTP: Power-Vented with Propeller Fan
    • 7 Model Sizes: 150, 175, 200, 250, 300, 350, and 400 MBH
  • Model BTP: Power-Vented with Centrifugal Blower Fan
    • 7 Model Sizes: 150, 175, 200, 250, 300, 350, and 400 MBH
Where To Buy

Highlighted Features

Compact. Versatile. Built for Tight Spaces.

The PTP’s low-profile cabinet allows flexible mounting in areas with limited clearance—perfect for garages, workshops, service bays, and light commercial spaces where every inch matters.

Efficient Heat. Reliable Comfort.

Engineered with a power-vented design to optimize combustion and airflow, the PTP delivers consistent, even heat while minimizing energy waste—whether powered by natural gas or propane.

Built to Last. Easy to Service.

An aluminized steel heat exchanger resists corrosion and extends product life, while the hinged access panel simplifies maintenance and service—backed by Modine’s trusted American manufacturing.

Product Details & Specifications

Key Features
  • Power-Vented System: Safely exhausts combustion gases outdoors, ensuring clean, efficient operation and consistent comfort.
  • Venting Versatility: an integral power exhauster allows vertical or horizontal venting 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 tubular 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.
  • Contractor Convenience Package: Includes diagnostic LEDS and disconnect switch
  • BMS integration: Optional factory-installed Modine Building Management System
  • ETL Certification: ETL certified for residential, 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 (PTP)
  • Centrifugal Blower Fan (BTP)

Model Sizes:

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

Heat Exchanger:

  • Tubular, Aluminized Steel (Standard)
  • Tubular, 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

PTP = Propeller, BTP = Blower

Venting Accessories:

  • Vent Caps (Sizes 30–75: 3″, 100–200: 4″, 250–400: 6″)

Gas Conversion Kits:

  • Natural to Propane and Propane to Natural (Single-Stage & Two-Stage)

Blower-Specific Accessories (BTP Only):

  • Belt Guard
  • Blower Enclosure
  • Filter Rack & Filter (requires Blower Enclosure)
  • Discharge Transition for Polytube

Air Discharge Accessories:

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

Thermostats & Controllers:

  • Thermostat Guard (Modine Pro1 T-150)
  • Room Thermostat (Modine Pro1 T-501M)
  • Two-Stage Thermostat (Modine Pro1 T-715M)
  • WiFi Thermostat (Modine Pro1 T855iSH)
  • Johnson Controls A350 Electronic Temp Control with S350 Stage Adder – for blower units (BTP) only
  • Energy Saver Thermostat

BMS (Building Management System):

  • Factory Installed BMS

Miscellaneous & Suspension Accessories:

  • 2-Point Suspension Kit – for propeller units (PTP) sizes 55, 65, 85–400
  • Quick-Sling QSWI-3000
  • On/Off Toggle Switch Kit – for propeller units (PTP) only
Warranty
Applications

The PTP/BTP series is engineered for light commercial and industrial spaces where space, performance, and reliability matter most.

Common ideal applications include:

  • Auto repair shops and service bays
  • Greenhouses and agricultural applications
  • Retail stock rooms and light manufacturing
  • Warehouses and workshops
  • Commercial garages and maintenance facilities
Modine power-vented gas-fired horizontal commercial unit heater, model PTP, installed in a commercial storage room with wood panel walls, filled with furniture wrapped and packaged for shipping.

Tech Documents

Related Products

PDP_front left

PDP/BDP Series

Vertical Power-Vented Gas-Fired Unit Heater

7 Model Sizes: 150 TO 400 MBH

Our Legacy model – Efficient, reliable heat for large spaces. Certified for commercial and industrial applications.

Natural Gas or Propane