Modine Hot Dawg HD-75 - 75,000 BTU - Unit Heater - NG - 80% AFUE - Power Vented - Aluminized Steel Heat Exchanger


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The Modine name has become synonymous with quality unit heaters in millions of homes and workshops all across the world. The HD75 is no exception, with sound engineering and reliability to last decades on end. Field wiring connections and electrical knockouts allow the HD75 to be installed nearly anywhere, while its quiet operation and a natural, neutral coloring allow it to blend in seamlessly in any location.

Hush-Puppy Quiet Operation

The HD75 is incredibly quiet during operation. This allows the heater to be inconspicuous yet effective at all times - it will not distract you from your work.

Low Profile Design

The HD75 has an incredibly low profile design, measuring in at a height of only 18 inches. It can be mounted with a one-inch clearance from the ceiling on only two angle brackets, keeping the unit heater out of your way.

Aluminized Steel Heat Exchanger

The aluminized steel heat exchanger passes lower manufacturing costs along to the consumer, is incredibly durable, and is protected by a full 10-year warranty by Modine.

Electric Knockouts

Electric wiring knockouts and field wiring connections on the HD75 keep installation costs low and save time during both installation and maintenance for your contractor by simplifying all required electrical work.

Permanently Lubricated Motor

The motor on the HD75 has a permanent, long-lasting lubricant straight from the factory. This means that the motor never has to be oiled, reducing maintenance costs, general wear and tear, and operational noise.

Power Venting System

The power venting system quickly and efficiently brings flue exhaust from the unit heater to the outdoors and requires minimal installation labor. This keeps installation related costs as low as possible.

Baked-On Polyester Paint

The HD75 features a neutral colored baked-on polyester paint, providing excellent corrosion resistance and durability while blending in with a wide variety of environments.

Mounting Brackets Included

Model HD75 includes two mounting brackets for convenience.

Modine Installation

Installation by a professional installer is required by the manufacturer.


Product Line Hot Dawg
Manufacturer Part Number HD75AS-0111-FBAN
Applications Unit Heater, Garage Heater, Workshop Heater, Loading Dock Heater, Supplemental Heater
Warranty Parts: 2 Years, Heat Exchanger: 10 Years
Fuel Type Natural Gas
Heating Capacity (BTUs) 60000 BTU
Heat Exchanger Material Aluminized Steel
Air Flow Capacity (CFM) 1160
AFUE 80%
Vent Type Power Vent
Orientation Horizontal
Gas Conversion Kit Available
Air Throw (feet from face of unit) 38
Gas Piping Diameter 1/2 Inch
Flue Connection Size 3 Inches
Voltage 115 Volts
Frequency 60 Hz
Phase 1
Certifications UL Listed, CSA listed
Product Depth (in.) 25 Inches
Product Height (in.) 18 Inches
Product Width (in.) 26 19/24 Inches
Product Dimensions (in.) 18 x 26 19/24 x 25 Inches
Shipping Weight (lb.) 95 pounds
Package Quantity 1
Import Designation Made in USA
Country of Origin United States
Service Manual
Install Guide

Service Manual

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