| 摘要 |
A process for producing a panel heater (1) of the type comprising a body member (2) in the form of a slab comprises securing a plurality of bollards 10 on a base (6) of an open mouthed rectangular box (4) and placing an electrical heating element 8 having end connectors (22, 34) around the bollards 10. The end connectors engage within an internal connector housing 12. A matrix of fire retardant material (9) is cast in the box (4) about the electrical heating element 8 and the bollards 10 and allowed to set before being covered with an insulating panel 26. A closing lid 5 is attached to the open mouthed rectangular box 4 to form the base of the panel heater 1. The bollards 10 may be secured to the base 6 of the open mouthed rectangular box 4 by a jig (33) having bollard engaging prongs (32) removable after casting of the matrix 9. The process allows slab-like panel heaters (1) to be produced simply and cheaply. <IMAGE> |
