Any particular reason why you want a combi?
You should look at an unvented system that way you can still have immersion back up just incase a fault occurs.
6xx series valliant are well regarded if you go down that route.
In my opinion a big combi should do ok with 2 showers going.
You should look at an unvented system that way you can still have immersion back up just incase a fault occurs.
6xx series valliant are well regarded if you go down that route.
In my opinion a big combi should do ok with 2 showers going.