WE ARE CONVERTING OUR LOFT SPACE TO ACCOMODATE TWO EXTRA BEDROOMS AND A SHOWER ROOM, ALSO WE ARE BUILDING A SINGLE STOREY REAR EXTENSION FOR A NEW KITCHEN. HAVING DECIDED THAT OUR INCOMING WATER IS @14 l/m, APPROX 1.2 BAR, OUR PLUMBER HAS SUGGESTED WE USE AN UNVENTED SYSTEM BUT BECAUSE HE THINKS THE PRESSURE IS NOT ADEQUATE HE HAS SAID WE WOULD NEED AN ADDITIONAL TANK AND PUMP WITH AN ADDITIONAL COST OF £2500. DOES THIS SOUND CORRECT? WE DON'T INTEND TO RUN FULL CENTRAL HEATING, JUST TO TWO RADIATORS ON TWO COMMON LANDINGS, TWO HEATED TOWEL RAILS, TWO SHOWERS AND THE USUAL KITCHEN TAPS.
