A robust flame viewing shutter box assembly adaptable to fit many makes of Boilers and Furnaces. Manufactured from steel and supplied with a clear sight glass and mounting gasket.
The shutter has to be held open with lever to view flame, once dropped the shutter prevents direct heat onto the glass.
The shutter box assembly has a pitch circle diameter of 140mm and bolt holes of 11mm.
© 2019 IBHS
Registered Office: Wellesley House 204 London Road Waterlooville Hants PO7 7AN
Registered in England No: 2803457
VAT Reg. GB 615 2957 34
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