Yes, our condensing boiler can be connected to any clock available on the market. I have deliberately not put the clock inside the cooker, you can fit one where you want, usually in the airing cupboard. This is a deliberate policy. Clocks inside ovens tend to overheat and fail. In 10 years’ time, the clock a manufacturer bought might not be made any more and it would be difficult to alter the iron fittings. By using a standard clock, you can replace it easily if, or when, it breaks down.