Marley EFF4008 Qmark Electric Ceiling Heater
The Marley EFF4008 Qmark Electric Ceiling Mounted Heater delivers high-output heating for commercial, industrial, or institutional spaces where wall-mounted options are impractical. Designed with a robust stamped steel front cover and reinforced with a 1/4″ mesh backing, this unit ensures durability and safety in demanding environments.
Key to its performance is the built‑in fan delay, which prevents the discharge of cold air during the initial warm‑up phase, ensuring a smooth transition to full heating output. The heater’s field‑adjustable wattage allows operators to fine‑tune heat output from 0.5 W up to the unit’s maximum capacity, providing precise control for varied space requirements. The heavy‑duty louvers protect the internal components from foreign objects while maintaining efficient airflow.
Ideal for use in conference rooms, cafeterias, warehouses, and other spaces where ceiling clearance is limited, the Marley EFF4008 offers reliable, consistent heat. Its straightforward installation—mounting directly to a standard ceiling joist—reduces labor time and simplifies maintenance. With its combination of robust construction, adjustable output, and smart fan delay, this heater stands out as a dependable solution for high‑traffic, heat‑critical areas.
| Front Cover Material | Stamped steel with 1/4″ mesh backing |
|---|---|
| Fan Delay Feature | Standard on all units |
| Wattage Adjustment | Field adjustable to 0.5 W |






