Apparatus and method of heating and ventilating an enclosed area comprising a floor arranged as a number of floor zones. The method comprises providing a radiant heater spaced above each floor zone so as in use to direct heat downwards towards the floor; providing a ventilating air inlet spaced above at least part of each floor zone, the air inlet being at the same level as, or closer to, the floor than the radiant heater, the air inlet being arranged in use to draw-in a controllable quantity of air from outside of the enclosed area; providing a ventilating air outlet spaced above at least part of each floor zone, the air outlet being spaced further from the floor than the radiant heater and air inlet, the air outlet being arranged in use to extract a controllable quantity of air from inside of the enclosed area, wherein the method further comprises, for each floor zone, independently controlling the quantity of air being drawn in and extracted from said floor zone based on the sensed temperature inside and outside the enclosed space.

A radiant heater is disclosed. The radiant heater includes a heating layer, with a first elongated conductor configured to receive electricity and a second elongated conductor disposed parallel to the first conductor. A continuous sheet of resistive material adapted to produce heat in response to electrical current is disposed between the first and second elongated conductor. The heater also includes a transparent layer and a non-transparent functional layer that is disposed between the heating layer and the transparent layer. In a preferred aspect, the invention is in the form of a heating mirror.

Apparatus and method of heating and ventilating an enclosed area comprising a floor arranged as a number of floor zones. The method comprises providing a radiant heater spaced above each floor zone so as in use to direct heat downwards towards the floor; providing a ventilating air inlet spaced above at least part of each floor zone, the air inlet being at the same level as, or closer to, the floor than the radiant heater, the air inlet being arranged in use to draw-in a controllable quantity of air from outside of the enclosed area; providing a ventilating air outlet spaced above at least part of each floor zone, the air outlet being spaced further from the floor than the radiant heater and air inlet, the air outlet being arranged in use to extract a controllable quantity of air from inside of the enclosed area, wherein the method further comprises, for each floor zone, independently controlling the quantity of air being drawn in and extracted from said floor zone based on the sensed temperature inside and outside the enclosed space.

Disclosed are various space heater base brackets. A first thermal transfer component has a base bracket hole along its bottom edge. A second thermal transfer component has a locking hole along its bottom edge. A base bracket is between the first thermal transfer component and the second thermal transfer component. The base bracket has a tab that protrudes into the base bracket hole. The base bracket also has a locking mechanism corresponding to the locking hole in the second thermal transfer component.