Qmark’s (Marley) is redesigning most of their wall and ceiling heaters with new grills. They have now done the QCH Ceiling Heaters, which have also received the -F suffix. The new grills are white and rounded, as were the wall heater grills:

https://morelectricheating.com/products/COMFORT%20HEATERS/CEILING%20HEATERS/QCH%20SERIES%20CEILING%20HEATER.aspx

The type QCH Ceiling Mounted Heaters are designed for dens, basements, converted attics, breezeways, garages, bathrooms, small offices, workshops and similar areas. 500 to 2000 watts.

Room temperature is controlled by a remote wall thermostat which must be purchased separately.

The Dimplex Large Ceiling Mounted Heater – Includes built-in electronic thermostat & Connex Wireless Control Capability – Built-in fan only option – White – Bracket allows easy, hinged installation – cCSAus Listed – two-stage proportional heat output

https://morelectricheating.com/products/MANUFACTURERS/ELECTROMODE@@2fDIMPLEX/CMH.aspx