I am buying a house in a hard water area. It has no c/h system and no boiler and I inted to install both. I gather condensing boilers are the way to go these days, but what about the question of combi vs. regular? My experience of a combi in my previous house was that it was constantly furring up dure to the hard water, and I spent a fortune keeping it running. Conversely, my parents had an old fasioned regular boiler and a copper cylinder that never needed any repairs or maintenance. Bleeding the rads once a year was all that was required. So, is there a good argument for using a regular condensing boile rather than a combi? The house I'm buying is a 3-bed semi.