Modine® PTP150 Low-Profile Power-Vented Natural Gas Unit Heater - 150,000 BTU - Aluminized Steel

The Modine® PTP150 Low-Profile Tubular Unit Heater is a commercial-duty, power-vented natural gas heater designed to provide dependable space heating in greenhouses, warehouses, workshops, agricultural buildings, commercial facilities, and other large indoor environments.

This PTP150 configuration provides 150,000 BTU/hr of input and approximately 123,000 BTU/hr of heating output with a rated thermal efficiency of approximately 82%. Its propeller-fan design delivers approximately 2,140 CFM of airflow for effective heat distribution throughout the space.

A durable tubular aluminized steel heat exchanger, enclosed motor and controls, direct-spark ignition, and standard power exhaust are combined in a compact low-profile cabinet designed for reliable commercial and greenhouse operation.

The heater operates on 115V, 60Hz, single-phase electrical power and natural gas. Power venting provides installation flexibility for properly designed sidewall or roof venting systems.

What Is the Modine PTP150 Used For?

The Modine PTP150 is a gas-fired overhead unit heater designed to heat larger indoor commercial, agricultural, horticultural, and industrial spaces where floor space needs to remain available.

The unit can be suspended overhead and uses a propeller fan to move heated air through the space. Its combination of compact dimensions, high heating capacity, and power venting makes it particularly useful in applications such as greenhouses, warehouses, garages, workshops, and production facilities.

Key Features and Benefits

• 150,000 BTU/hr input: High-capacity heating for large commercial and agricultural spaces.
• Approximately 123,000 BTU/hr output: Delivers substantial usable heating capacity.
• 82% thermal efficiency: Efficiently converts natural gas into usable space heat.
• Natural gas operation: Designed for facilities with an appropriate natural gas supply.
• Power-vented design: Simplifies properly designed horizontal or vertical venting installations.
• Low-profile cabinet: Helps reduce overhead space requirements.
• 2,140 CFM airflow: Propeller fan moves heated air throughout the conditioned space.
• Tubular aluminized steel heat exchanger: Provides durable heat-transfer performance in demanding environments.
• Direct-spark ignition: Electronic ignition system provides automatic burner startup.
• Single-stage gas controls: Straightforward heating operation.
• Enclosed motor and controls: Helps protect components from airborne moisture and dust.
• Permanently lubricated motor: Designed to reduce routine motor maintenance.
• 115V operation: Uses 115V, 60Hz, single-phase electrical power.
• ETL certified: Certified for applicable commercial and industrial use in the United States and Canada.
• Designed and assembled in the USA: Modine PTP heaters are designed, engineered, and assembled in the United States.

150,000 BTU Natural Gas Heating

The Modine PTP150 has a rated heating input of 150,000 BTU per hour. At approximately 82% thermal efficiency, the unit provides roughly 123,000 BTU/hr of usable heat output.

This capacity makes the PTP150 suitable for larger spaces where smaller residential or light-duty heaters may not provide sufficient heat.

Low-Profile Overhead Design

The PTP series uses a compact, low-profile cabinet designed for overhead installation. Mounting the heater above the occupied area helps preserve valuable floor space in greenhouses, warehouses, shops, and production facilities.

The PTP150 has a listed maximum mounting height of approximately 15 feet under appropriate design conditions.

Power-Vented Combustion Exhaust

The Modine PTP150 uses a power exhaust system to move combustion gases through the venting system. This provides additional installation flexibility compared with equipment that relies solely on natural-draft venting.

Venting must be designed and installed according to the Modine installation manual, applicable fuel-gas requirements, building codes, and local regulations. This heater is not an unvented appliance.

Aluminized Steel Tubular Heat Exchanger

The standard PTP150 configuration uses a tubular aluminized steel heat exchanger. The tubular design provides efficient heat transfer while the aluminized construction helps provide durability in commercial and horticultural environments.

Modine backs the heat exchanger with a listed 10-year heat exchanger warranty, subject to the manufacturer's warranty terms.

Designed for Greenhouse Applications

The PTP series is well suited for greenhouse heating because the heater combines a compact overhead design with enclosed electrical components and a corrosion-resistant aluminized steel heat exchanger.

The motor and controls are mounted inside the cabinet to provide additional protection from airborne moisture and dust that may be present in greenhouse and agricultural environments.

2,140 CFM Propeller Fan

The PTP150 uses a propeller fan delivering approximately 2,140 CFM of airflow. The listed air-temperature rise is approximately 53°F, allowing the unit to move a substantial volume of heated air through the space.

Direct-Spark Ignition

The heater uses direct-spark ignition with automatic gas shutoff and retry functionality. This eliminates the need for a continuously burning standing pilot.

Ideal Applications

• Commercial greenhouses
• Nurseries
• Agricultural buildings
• Warehouses
• Workshops
• Commercial garages
• Maintenance facilities
• Production buildings
• Industrial workspaces
• Large utility spaces

Modine PTP150 Product Specifications

Frequently Asked Questions

What is the Modine PTP150?

The Modine PTP150 is a 150,000 BTU natural gas, power-vented overhead unit heater designed for commercial, greenhouse, agricultural, and industrial heating applications.

How many BTUs does the Modine PTP150 produce?

The heater has a rated 150,000 BTU/hr input and approximately 123,000 BTU/hr output.

What is the efficiency of the Modine PTP150?

This specific PTP150 configuration has a rated thermal efficiency of approximately 82%.

Is the Modine PTP150 natural gas or propane?

This specific model is configured for natural gas. Modine also offers other configurations and approved conversion options for certain applications. Any fuel conversion should use manufacturer-approved components and procedures.

Is the Modine PTP150 power vented?

Yes. The PTP150 uses a power exhaust system to vent combustion products through a properly designed vent system.

Can the Modine PTP150 be used in a greenhouse?

Yes. The PTP series is commonly used in commercial greenhouse applications and features an aluminized steel heat exchanger plus enclosed motor and controls for demanding environments.

How much airflow does the PTP150 produce?

The PTP150 provides approximately 2,140 CFM of airflow.

What is the heat output of the PTP150?

The listed heat output is approximately 123,000 BTU per hour.

What voltage does the Modine PTP150 require?

This configuration uses 115V, 60Hz, single-phase electrical power.

What type of heat exchanger does the PTP150 use?

This model uses a tubular aluminized steel heat exchanger.

What type of ignition does the Modine PTP150 use?

The heater uses direct-spark electronic ignition.

Does the Modine PTP150 have a standing pilot?

No. Direct-spark ignition electronically ignites the burner when heat is required rather than relying on a continuously burning standing pilot.

What size gas connection does the PTP150 use?

The heater uses a listed 1/2-inch gas connection.

How high can the Modine PTP150 be mounted?

The published maximum mounting height for this configuration is approximately 15 feet. Final installation height should follow Modine's system-design and installation requirements.

Can the Modine PTP150 be vented through a side wall?

The standard power exhaust provides flexibility for properly designed sidewall or roof venting. The vent material, routing, termination, and installation must comply with the Modine installation manual and applicable codes.

Can PVC pipe be used to vent the Modine PTP150?

No. This heater produces exhaust temperatures that require the venting materials specified by Modine. PVC should not be substituted for the approved vent system.

Is this heater designed for ceiling installation?

Yes. The PTP series is designed as an overhead suspended unit heater, helping preserve usable floor space.

Does the heater include a thermostat?

A thermostat should not be assumed to be included unless specifically stated in the product package. Compatible room thermostats are available as accessories for the PTP series.

Is the Modine PTP150 ETL certified?

Yes. The PTP series is ETL certified for applicable use in the United States and Canada.

What warranty does the Modine PTP150 include?

The PTP150 is listed with a 10-year heat exchanger warranty and 2-year parts warranty, subject to Modine's published warranty terms.

What is the manufacturer part number?

The manufacturer part number for this configuration is PTP150AS0111SBAN.

Does the Modine PTP150 require professional installation?

A gas-fired unit heater requires proper gas supply, electrical connections, combustion venting, clearances, mounting, and commissioning. Installation should follow the Modine installation manual and all applicable fuel-gas, electrical, mechanical, and building requirements.

Why Choose the Modine PTP150 Unit Heater?

The Modine® PTP150 combines substantial heating capacity with a compact overhead design for applications where reliable commercial heating and efficient use of space are priorities.

With 150,000 BTU/hr input, approximately 123,000 BTU/hr output, 82% thermal efficiency, 2,140 CFM airflow, power venting, direct-spark ignition, an aluminized steel tubular heat exchanger, and 115V operation, the PTP150 provides a durable heating solution for greenhouses, warehouses, workshops, agricultural buildings, and commercial facilities.