Questions? 1-800-442-2581
or 1-616-784-1121
8:00 am - 5:00 pm M-F EST
8:00 am - 1:00 pm Sat. EST
Share |
Refine Results Clear All
Product Types
Select Product Types Clear
 Fan Forced Heaters (4)
 Unit Heaters (4)
Select Voltage Clear
 277 Volt (4)
Select Phase Clear
 1 Phase (4)
Select Wattage Clear
 10 KW (1)
 3 KW (1)
 5 KW (1)
 7.5 KW (1)
Select Price Clear
 $250 to $500 (3)
 $500 to $1000 (1)
Select Vendors Clear
 Marley (4)
 Qmark (4)
Air Circulator Fans
Air Doors/Air Curtains
Baptistry Heaters for Churches
Baseboard Space Heaters
Bathroom Fans
Blowers (Portable Utility)
Camp, Fish, Hunt & RV
Ceiling Fans (Commercial/Ind)
Clearance & Specials
Comfort Space Heaters
Construction Heaters
Controls & Transformers
Drum Blowers (Portable)
Evaporative Coolers
Floor Warming Mats/Cables
Garage & Shop Heaters
Garden & Outdoor Items
Hand Dryers (Washrooms)
Heaters & Accessories
Heating Cable & Mats
High Temp. Wire & Acces.
Industrial Heating Products
Infrared Radiant Heaters
Lighting & Flashlights
Loading Dock Fans
Manufacturers (Vendors)
Nichrome Wire Coils & Acc.
Patio Heaters (Radiant)
Pest/Bird/Animal/Insect Control
Pipe Cable (Constant Wattage)
Pipe Cable (Self-Regulating)
Pipe Trace Freeze Protection
Portable 120V Space Heaters
Portable 240V Space Heaters
Replacement Repair Parts
Roof & Attic Ventilators
Roof & Gutter Deicing Cable
Roof Cable (Constant Wattage)
Roof Cable (Self-Regulating)
Snow & Ice Removal
Tapes (Adhesive)
Temperature Sensors
Thermostats & Accessories
Tools, Glue, Lights & Gear
Unit Heaters (Blower)
Wall Exhaust Fans
Wall Heaters (Fan-forced)
Wall Panel Convectors
Water Heaters (Tankless)
Whole House Fans
You searched for: MUH Series 277V 1Ph Unit Heaters
Results Displayed: 1 - 4 of 4
Qmark type MUH unit heater. For use factories, warehouses, garages, stores, shipping rooms, power stations, and aircraft hangers. Can be used for primary, supplementary, spot, or dual-system heating.

- Totally versatile. Unit can be mounted either horizontally or vertically.
- Wide range of optional control kits are field installable, increasing the MUH adaptability to the specification market.
- Forced air unit heater with 10 power ratings; from 3KW to 50 KW heating output; 208, 240, 277 and 480V, 10,230 to 170,500 BTU/hr.
- 32 compatible models (no need to try to assemble a heating system from 70 or 80 models!)
- Heavy gauge die-formed steel housing. Two-toned, smartly styled
- Advanced pull-through air flow design draws air across heating element for more even air distribution and cooler element operation.
- Specially designed venturi outlet to meet that added throw as required in vertical position.
- Branch circuit fusing (when required). Completely enclosed fan motor.
- 1or 3-phase wiring on 5 through 10 KW 208/240V and 15 KW 208V units (field interchangeable)
- Aluminum-finned, copper clad steel sheath heating element has longer useful life, because of cooler sheath temperature and faster heat dissipation.
- 24V control transformer standard on most models providing a safer and more accurate means of temperature control. 3KW and 5KW, 208-277V, have line voltage controls as standard (24V control available on made-to-order basis).
- Automatic reset linear thermal cut-out, capillary type, provides protection over entire length of element areas (Manual reset protection available on made-to-order basis).
- 2 speed fan selector switch (25 to 50 KW models).
- Fan delay feature eliminates cold drafts. Element heats up before fan cuts in then fan continues to distribute heat after element shuts off.
- Ruggedly built, yet lighter weight for easier installation. No piping flues, valves, or traps.
- Individually adjustable discharge louvers to control air flow.
- Choice of optional diffusers for variety of air patterns, maximizing heat concentration and coverage in the vertical position.
- Meets all UL, NEC, and OSHA requirements.
- UL listed

Link to Product Information Page on
Installation and Maintenance Instructions
Product Bulletin
Submittal Sheet
Replacement Parts
Item CodeDescriptionVendorQuantity
MUH107 Qmark Unit Heater 277V 10kW
Qmark Marley Type MUH Series Unit Heaters - 277 Volt 1 Phase 10KW - 650 CFM - 49F Temp Rise - 18ft Air Throw - 24V Control Voltage
MUH077 Qmark Unit Heater
Qmark Type MUH Series Unit Heaters - 277 Volt 1 Phase 7.5KW - 650 CFM - 37F Temp Rise - 18ft Air Throw - 24V Control Voltage
MUH0571 Qmark Unit Heater
Qmark Type MUH Series Unit Heaters - 277 Volt 1 Phase 5KW - 350 CFM - 45F Temp Rise - 12ft Air Throw - 277V Control Voltage
MUH0371 Qmark Unit Heater
Qmark Type MUH Series Unit Heaters - 277 Volt 1 Phase 3KW - 350 CFM - 27F Temp Rise - 12ft Air Throw - 277V Control Voltage