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Qmark Type CDF Commercial Downflow Fan Forced Ceiling Mounted Heaters

Surface mount enclosure

Links to other types of Ceiling Heaters:
Qmark Type EFF Ceiling Mounted Heaters
Qmark Type QCH Ceiling Mounted Heaters

Qmark Electric Heating Products
We are an authorized distributor for Qmark

Recessed mount enclosure

  • Deliver heat where you want it - in vestibules, hallways, workshops, restrooms and entry way
  • Type CDF ceiling-mounting fan-forced heaters are designed for commercial and industrial areas requiring electric fan-forced heat. Capacities are 2,000 to 5,000 watts. Type CDF-SE surface enclosures are designed to mount flat on the ceiling and extend only six inches into the room. Type CDF-RE enclosures have no protrusions outside the recess box, allowing the heater to recess only seven inches into ceiling space. Mounts into permanent ceiling with trim ring.

  • MULTIPLE WATTAGE HEATER SECTIONS - The 5,000 watt heater can be field converted to 3,800 watts or 2,500 watts, and the 4,000 watt heater is convertible to 3,000 or 2,000 watts.

  • MULTIPLE PHASE HEATERS - The 208 and 240 volt heaters can be field converted from single to three-phase operation. 277 volt single-phase heater is also available.

  • AUTOMATIC THERMAL CUTOUT - A thermal cutout shuts off the heater in the event of overheating and reactivates the heater when the temperature returns to normal.

  • BUILT-IN FAN DELAY Space temperature is controlled by a wall or unit-mounted thermostat. When the thermostat calls for heat, the heating elements and fan energize. When the thermostat is satisfied, the elements shut off, but the fan continues to operate until all of the heated air is discharged. This feature avoids exposing the heater to residual heat, thus achieving a high comfort level and longer component life.

  • Navajo white finish

  • Wire Size - AWG 10

  • U.L. listed

SINGLE PERSON HANDS FREE INSTALLATION - Every heater has two installation aids unique to the industry - Spring Clips temporarily support the heater section until the mounting hardware is secured. THUMB PINS align and temporarily hold the enclosure cover to the heating section freeing both hands to finish installation.

Type CDF-RE enclosures also mount easily into standard 2 x 2 ceiling grids

Choose between: (Required)

CDFSE Surface Mounting Enclosure CDFRE Recessed Mounting Enclosure
20"L x 16 1/2"W x 5 3/4"D 23 3/4"L x 23 3/4"W x 7"D

Totally adjustable airflow . . . even from 14 foot ceilings!

Secure Online Ordering
A mounting enclosure (required) and the optional thermostat can be added to your shopping basket after selecting a heater below.

Item ID

Catalog #

Volts Watts Phase CFM Click "Select" below
QMARK685360015101 CDF548 208 4000/3000/2000 1-3 283 Select
QMARK685360015132 CDF558 208 5000/3800/2500 1-3 396 Select
QMARK685360015095 CDF547 277 4000/3000/2000 1 283 Select
QMARK685360015125 CDF557 277 5000/3800/2500 1 396 Select
QMARK685360015088 CDF542 240 4000/3000/2000 1-3 283 Select
QMARK685360015118 CDF552 240 5000/3800/2500 1-3 396 Select
Optional Accessories
QMARK685360015019 CDFSE Surface Mounting Enclosure Select
QMARK685360014982 CDFRE Recess Mounting Enclosure Select
QMARK685360015033 CDFT Optional Thermostat. Single Pole Single Throw. Range 45 to 95F Select
QMARK685360015071 CDF24R Relay Select
QMARK685360014968 CDFDS CDF Series Acc Power Disc Switch Select
QMARK685360015002 CDFR12 Relay Select
QMARK685360015040 CDFTK Trim Ring Select
QMARK685360015057 CDFTR4 208/240V Primary Transformer/24V Secondary Control Relay Select
QMARK685360015064 CDFTR7 CDF Series Acc 277V Primary Xfrmr Select
*This delivery time is for normal conditions and is subject to Qmark factory availability.
Wall Mount Thermostats: (Optional)
WR10030 1E30N-910 White-Rodgers 24V Low Voltage Thermostat


HONEYWELL10064 T8775A1009 Honeywell 24 Volt Digital Thermostat




White Mears Double Pole Thermostat, wall mount Select


Ivory Mears Double Pole Thermostat, wall mount Select
QMARK98319841025 TC1 Qmark Clear Plastic Universal Lockable Thermostat Guard. Dimensions: 7"L x 4.28"H x 2.74"D. Select
*This delivery time is for normal conditions and is subject to Qmark factory availability.

Qmark is a registered trademark of Marley Engineered Products.

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We are a Distributor of Industrial, Commercial and Residential Heaters and Controls. Always consult manufacturers installation instructions for proper installation of the products or systems shown on this website. © Copyright 1999-2019 Mor Electric Heating Assoc., Inc.

5880 Alpine Ave. NW - Comstock Park, MI 49321  USA
Tel 616-784-1121 - 800-442-2581 - Fax 616-784-7775

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