If you’re here because Vitodens 200-W WB2B System 35k is your boiler we cover it. At Heat Firm with our Gold cover care service; we not only cover your boiler and the internal parts we cover the external parts too. This could be an external pump, diverter valve thermostatic radiator valve, a room stat and many other parts. Our gold cover service is the most popular because it’s big on value. You can pay weekly, monthly or annually, by selecting the Gold cover care plan on the right hand side. Sign up to day and benefit from the Gold cover care service.