Sime Control Knobs

We stock a wide range of Control Knobs from Sime Boiler Parts at Direct Heating Spares. We are committed to getting you the spare parts you need - fast. That's why we stock over 20,000 parts from 100+ brands, offer click & collect, and are open seven days a week - weekdays until 7pm, ensuring you get what you need when you need it.

The control knob sits on one of the spindles located on the front of the appliance and allows the user to manually control certain aspects of the appliances functionality. Some boilers enable you to change temperature and others allow you to alter the current function. This means the user can have the boiler provide hot water without the central heating being turned on and vice versa.