British gas engineer has condemned and turned off my boiler - as sight glass not got seals - was cemented on by previous BG engineers for many years. Any idea where I can get a new one please - Ideal Mexico Super 3 cf 80 sight glass assembly 079334. if I can get one I will get a gas safe fitter to sort boiler out if that is okay. I know I need a new boiler - want another Ideal Mexico HE 30 but not till after Christmas. Will go private - gone off British Gas Annual Service. Been with them 20 years or so and been told they do not supply Ideal boilers.