Nik_huck

28kw Combi boiler, yes mate cold water has got significantly better flow than hot water tap.

Yes mate i've15mm supply pipe

Hi, I'm looking for recommendations for the type of boiler that suits my requirements based on the my current circumstances. Currently I've combi boiler with 15mm inlet pipe providing water supply for a single shower and kitchen. Pressure drops if taps gets used simultaneously in kitchen and shower. Going through an extension so when it completed I'll have 2 shower, bath and kitchen. What options do I have? One plumber suggested to go for bigger combi and 2 pumps for enough pressure, not sure if it gives enough pressure. Unvented cylinder is of no use due to15mm inlet. Another plumber suggested I can have an unvented cylinder using existing combi as system and one shower directly connecting to combi not best but will work. My though was to go for a bigger pipe 32mm via severn trent, put an application in had survey which will cost £1100 thought to having it done. Here is the twist and nohing was easy since I started my extension, as I live 100 meters close to railway crossing and due to security reason nearby traffic needs manually controlling when severn trent does new connection and that added another £1000 making total bill £2100 just for Water board plus internal digging which will be done by my builder. Can some one please suggest what is the best way forward. Thanks in advance MSN.