Residential Separated Combustion Unit Heater (Model HDS/HDC)

The separated combustion Hot Dawg draws its combustion air from outside the work space, ensuring the unit always has plenty of fresh, clean air to breathe. This fresh-air supply reduces common concerns about dusty, dirty or humid applications. Additionally, drawing combustion air from the outside increases overall heating efficiency.

Typical applications for Modine separated combustion unit heaters - welding shops, warehouses (with contaminated air), barns, paint shops, garbage room (high-rise buildings), car washes, commercial / industrial, etc.


A separated combustion Hot Dawg unit gives you many added advantages including:

  • Less maintenance in dusty environments.
  • Improved efficiency by using outside air for combustion.
  • Greater durability in “hostile” environments (environments possessing substances that may deteriorate the performance of the unit).
  • External thermostat and gas connections.
  • Hush-puppy quiet operation.
  • Uses natural or propane gas.
  • Certified for residential, commercial and industrial use.
  • Low-profile design and neutral color to blend in with decor.
  • Lightweight, easily installs 1″ from ceiling with only 2 angle brackets (included).
  • Installs quickly and easily with field wiring connections and knockouts for quick access to gas and electricity.
  • Standard power exhaust simplifies side-wall or roof venting with small-diameter vent pipe.
  • Right or left hand controls available on all 30-75 units. Gas, electrical and flue connections can be changed by simply flipping the Hot Dawg over.
  • Permanently-lubricated motor for trouble-free dependability.
  • Full 10-year warranty on heat exchanger.
  • Also available with a blower. Contact Modine for further information.
  • Optional finger-proof fan guard for operation at low mounting heights
  • Made in USA



Download our app

Ask a question:

Please enter your full name