Thank you for the information.
I have steered away from a pressurized system due to the significant amount of older under floor copper pipes.
I appreciate a hot water on demand system would be more efficent but the hot water demand is high with 5 of us...bathroom, pumped shower, washing...
Too much to choose from...???
Looking to replace my old boiler (Rest is upto date)
Anyone have experience with Glowworm 18 hxi ? Had good review from Which and Buyability.....
Also been recommended Worchester 18RI and Vaillant ecoTEC plus 418.
Help please... :D