external boiler

Hello. Our current external Grant Vortex Combi Oil Boiler has a problem with the initial hot water supply throughout the day. In summary: - It takes about 5 minutes of running the hot tap until we get hot water. - This is the same whether the heating is on or not and regardless of time of...

Looking at where to place an external boiler, and some guidance on best practice is needed! Very conventional system - heat-only oil boiler, fully pumped, Y plan, indirect cylinder, F&E tank, 7 rads, all in a 2 bed cottage. It's a spring-supplied system, not on mains, so there is only 0.5 bar...