Roger I feel that Mr Nolan was giving a false statement when you asked if the boiler can do both heating and domestic water at the same time. In reality it can’t do both at the same time. There is a 3 way valve that works off from a flow switch. When the flow switch senses flow for domestic water it closes the valve off for the heating loop until the call for water is done. Than it will switch back to open the boiler loop.
Roger I feel that Mr Nolan was giving a false statement when you asked if the boiler can do both heating and domestic water at the same time. In reality it can’t do both at the same time. There is a 3 way valve that works off from a flow switch. When the flow switch senses flow for domestic water it closes the valve off for the heating loop until the call for water is done. Than it will switch back to open the boiler loop.
5 year boiler unfortunately.
Exactly