This system must be installed by FGAS registered Installers. We may require a copy of your installers FGAS certificate to complete your order. Orders received before 2pm Monday to Friday (excluding bank holidays) will be. In case the item is unsuitable or if you want to cancel your order, kindly get in touch with us as soon as possible. Prior to returning any item, please reach out to us so that we can guide you through the return process.