Qmark MUH252 Electric Unit Heater 208 240V 25000 Btu

Product Description

The QMARK MUH252 is a heavy-duty electric unit heater designed for forced-air space heating in industrial, commercial, and utility environments. Operating on 208 or 240 volts, it delivers 25,000 BTU/h of heating output to condition open bays, garages, warehouses, and similar large or uninsulated spaces. The unit is ceiling or wall-mount and draws on a resistive heating element with an integral fan to distribute heat across a wide coverage area. Licensed electricians and HVAC technicians handle installation and wiring. At 91 pounds, this is a substantial unit built for permanent installation rather than portable use.

The MUH252 is suited for commercial garages, loading docks, warehouses, mechanical rooms, and agricultural buildings where a central duct system is impractical or absent. It performs in applications requiring reliable, high-output electric heat without the need for gas supply, flue venting, or combustion air. The dual-voltage configuration at 208 and 240 volts gives it flexibility across common single-phase and three-phase commercial service panels.

Key Features

• Dual-voltage operation at 208 and 240 volts accommodates a range of commercial electrical services
• 25,000 BTU/h heating output for large, open, or poorly insulated spaces
• Forced-air fan distribution for wide heat coverage without ductwork
• Permanent ceiling or wall-mount design rated for industrial environments
• No gas supply, flue, or combustion air required — all-electric operation

Compatibility

Designed as an OEM-style electric unit heater for permanent installation in commercial and industrial heating applications requiring 208 or 240 volt single-phase or three-phase electrical service.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. Disconnect and lock out power at the panel before any wiring or mounting work. The unit requires a dedicated circuit sized to its rated amperage draw; verify wire gauge, breaker rating, and junction box capacity before rough-in. Follow the manufacturer mounting instructions for correct clearance to combustibles and proper airflow direction.

Technical Specifications

• Voltage: 208/240 volts
• Heating Output: 25000 BTU/h
• Weight: 91 pounds
• UPC: 68536004750

Standard Information

• Brand: QMARK
• Manufacturer Part Number: MUH252