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Modine Power Vented Gas-Fired Unit Heater (PDP Series)

QC Supply Part #: 20700
Shipping: Standard
Price From: $976.95 - $1,840.15

This Modine Power Vented Gas Fired Unit Heater features a totally enclosed motor with thermal overload and intermittent pilot ignition. Available in propane or natural gas.


Please inspect all units at the time of delivery
and notify shipping company of any damage immediately.


All Modine PV/PDP heaters ship via Motor Freight. Actual shipping charges will be applied.  We will provide a freight quote prior to completion of the order.


All installation and service of these heaters should be performed by a qualified installation and service agency. We have service technicians on staff to offer technical support for your heater. Please call us at 800.433.6340 with any questions you may have.


If you are purchasing a heater unit that will be installed at an elevation above 2,000 ft., please denote on the order. Modine has changed the process in how they deal with heaters installed at elevations above 2,000'. Modine no longer provides gas orifices to make the adjustment; instead, an adjustment is now made on the unit. For additional information, please see the document titled "High Altitude Kit Instructions" under the Manuals & Resources Tab.


This Modine Power Vented Gas-Fired Unit Heater (Model PDP) features a totally enclosed motor with thermal overload and an intermittent pilot ignition. It has a corrosion-resistant finish and a rotatable power exhauster for horizontal or vertical venting. 

Features & Advantages:

  • 80% thermal efficiency
  • Intermittent pilot ignition (spark ignition) with continuous retry control system
  • Propeller unit heater
  • Choose from Natural Gas or Propane
  • Totally enclosed motor
  • 115V/60Hz/1Ph
  • Requires only a vent pipe and connections to a gas and electric line for installation
  • Fans engineered for quiet operation
  • Aluminized steel heat exchanger is standard (stainless steel heat exchanger available by special order)
  • Designed for suspended mounting
  • Power exhaust can be rotated 180° for horizontal or vertical venting
  • Safety pressure switch to ensure safe venting conditions
  • CSA certification for commercial and industrial use in the United States and Canada
  • Made in the USA
Part #Model #BTU
CFM Heat
Dimensions (W x H x D)Weight
20700-150 (LP)-PDP150AE0185SBAN
150,000 120,000 LP or NG 5" 16' 2180 55' 51° 21" x 35 1/4" x 29 13/16" 174 lbs.
20700-175 (LP)-PDP175AE0185SBAN
175,000 140,000 LP or NG 5" 17' 2550 59' 51° 23 1/2" x 35 1/4" x 29 9/16" 175 lbs.
20700-200 (LP)-PDP200AE0185SBAN
200,000 160,000 LP or NG 5" 15' 2870 51' 52° 25 5/8" x 40 1/4" x 34 3/4" 238 lbs.
20700-250 (LP)-PDP250AE0185SBAN
250,000 200,000 LP or NG 6" 19' 3700 67' 50° 25 5/8" x 40 1/4" x 34 3/4" 239 lbs.
20700-300 (LP)-PDP300AE0185SBAN
300,000 240,000 LP or NG 6" 21' 4460 74' 50° 28 5/8" x 40 1/4" x 34 3/4" 269 lbs.
20700-350 (LP)-PDP350AE0185SBAN
350,000 280,000 LP or NG 6" 20' 4870 70' 53° 33 5/8" x 40 1/4" x 34 11/16" 338 lbs.
20700-400 (LP)-PDP400AE0185SBAN
400,000 320,000 LP or NG 6" 19' 5440 69' 54° 40" x 40 1/4" x 38 3/16" 418 lbs.

Suspending a Modine PDP Unit: The most common method of suspending Modine Gas Unit Model PDP Heaters is to utilize 3/8” threaded rods. On all PDP units, except sizes 350 and 400, two tapped holes (3/8-16) are located in the top of the unit to receive threaded rods. The 350 and 400 models have four tapped holes in the top of the unit for threaded rods.

Note: When ordering parts for your Modine Heaters, please have the following numbers ready: Model Number, Serial Number, Power Code Number and Control Code. This information can be found on the serial plate on the side of the unit.

Brand Modine
Manufacturer Part Number PDP
Vent Type Power Vented
Application Agricultural, Residential



Manuals & Resources


Customer Reviews

  • 5 Stars


    Review by on Nov 7, 2014

    Shopping experience good. Freight more than expected but shipped and received sooner than expected. Easy to install and runs great.

  • 5 Stars


    Review by on Jun 26, 2013

    Excellent product line, great value. Works perfectly in our enviroment.

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