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I want to fit a scale inhibitor as my boiler has scale building up in the plate heat exchanger, i was thinking of the sentinel combiguard, would you plumbers out there say this is a good system or do you have any other tried and tested ideas. :)

I have just finished insulating the house and now need to replace the trv's on the rads so each individual room will shut of the rad when temp is reached, there are masses of them out there nowadays and i have no idea as to what is good value for money or not, i think, and correct me if i'm...