HEAT EXCHANGER/VENTILATOR

PURPOSE:To easily open and close an inspection lid which covers an inspection hole of a heat exchanger. CONSTITUTION:A main body case 12 of a heat exchanger/ventilator is provided with an inspection hole through which the heat exchange is taken in and out, and a detachable inspection lid 20 is attached on the case 12 so that the inspection hole is normally closed. An elastic heat-insulating material is attached on the rear face of the lid 20 and comes in close contact with the circumference of the inspection hole. Clamps 23 are attached on an extended rib 12a of the main body case 12 to clamp the upper brim of the lid 20 which is inserted from below, so that the lid 20 is kept from slipping off forward. Stoppers 24 are provided on the lower left and right sides of the inspection hole and inserted into through-holes 22 of the inspection lid 20 to keep the inspection lid 20 from slipping off forward. The stoppers 24 are turnable between the stop position and open position.