The store will not work correctly in the case when cookies are disabled.
We use cookies to make your experience better.To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more
The Worcester Greenstar 21i gas boiler is a highly efficient wall-mounted system boiler that is perfect for properties with up to 15 radiators. It is also capable of meeting higher demand for hot water as they are installed alongside a hot water cylinder. This boiler comes with a steel wall mounting jig that not only allows pipes to go behind the boiler but also the ability to pre pipe all of the pipework before the boiler is placed on the wall.