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go for a good make of boiler ie vissmann 100 30kw if you find an installer that has been on vissmann course you get a 5 year guarantee hope this is of some help martyheat

[hi it can happen but rear good practice to fit scalmaster a 1m from unit on cold mains. good choice of boiler.javascript:emoticon(':P')

thanks Agile i think you may have the problem solved, thank for you info martyheat

hi have a valliant combi turbo plus 828 e it sometimes keeps heating running even when time clock and room sat are off ? and some times water does not heat ?? its not the frost stat as it does it when temp, was over 4c. thanks martyheat

sounds as if the flue has not been correctly seald

valliant turbo max plus 828e problem - sometimes the heating comes on when time clock or room stat are not calling for heat ?? and sometimes water does not get hot ?? any one any ideas[/b]

BOILER RUNS OK FOR A TIME THEN BUILDS UP PRESSURE AND DISCHARGES VIA SAFETY VALVE THE PRESSURE THEN DROPS TO LOW TO RUN BOILER ANY HAD THIS ???

gas regersterd installer