I have a 4 bed, 1 bathroom, 1 ensuite house and plan to have aVaillant ecoTech plus 937 storage combi fitted. Pressure is 2.5 - 3 bar (working pressure 1.5 bar - what is the difference?) and when measured at our kitchen cold tap we get 11 - 15 litres / min.
if we measure flow at the 22mm mains inlet to the house we get 20 litres / min
I am concerned that I will not get a decent shower? Want at least 11 litres / min.
I have been told that you can add a hot water tank that will be heated by the combi and use this (and the existing cold water tank that we will keep) with a pump to power a shower. Is this right and how does it work i.e. can you just have the tank heated up without the central heating being on?
if we measure flow at the 22mm mains inlet to the house we get 20 litres / min
I am concerned that I will not get a decent shower? Want at least 11 litres / min.
I have been told that you can add a hot water tank that will be heated by the combi and use this (and the existing cold water tank that we will keep) with a pump to power a shower. Is this right and how does it work i.e. can you just have the tank heated up without the central heating being on?