A word of caution regarding the Worcester - you may struggle to find anyone who will come and service/repair it for you in the future as
while they are excellent to install, they are a complete ba****d to service & repair speaking as a Service Engineer I would recommend the Grant for ease of maintenance, avoid Worcester IMHO
while they are excellent to install, they are a complete ba****d to service & repair speaking as a Service Engineer I would recommend the Grant for ease of maintenance, avoid Worcester IMHO