How we tested

Land Rover Monthly - - Lrm Technical -

Each heater was po­si­tioned at the same point on the floor. The floor was marked at 12 inch in­ter­vals up to 12 feet. This should pro­vide enough dis­tance to repli­cate use in most home garages and small work­shops. Each unit was then switched on and left to reach max­i­mum op­er­at­ing out­put in ac­cor­dance with in­struc­tions. Us­ing a piece of card­board as a heat ab­sorb­ing bar­rier, and an in­fra-red tem­per­a­ture gun, read­ings were taken af­ter 15 sec­onds of con­tin­u­ous ex­po­sure. This was done at each 12 inch in­ter­val to loosely mon­i­tor the ef­fec­tive­ness of the fanned heat out­put. On the day of the test the out­side tem­per­a­ture was 8 C, and the am­bi­ent work­shop tem­per­a­ture was 14 C.

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