Flat Fan Heater

fan heater
A fan heater is a heater that works by using a fan to pass air over a heating element. This heats up the air, which then leaves the heater, warming up the surrounding area. They can provide very rapid heating of a room, however may be relatively noisy in operation.
A fan heater is a convection heater incorporating fan forced air circulation to provide much quicker and more even heat distribution.

flat
The flat part of something
A flat object, in particular
An upright section of painted stage scenery mounted on a frame
a level tract of land; "the salt flats of Utah"
having a surface without slope, tilt in which no part is higher or lower than another; "a flat desk"; "acres of level farmland"; "a plane surface"; "skirts sewn with fine flat seams"
with flat sails; "sail flat against the wind"