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  1. S

    output temperature

    Will increasing the pressure on a condensing boiler give an increase in output temperature at the radiators?
  2. S

    filling loop valve

    My Vaillant condensing boiler manual says the pressure should be between 1 and 1.5 bar but my gauge is reading .75 bar. However, I can only turn one of the filling loop valves on - the one at the pressure relief valve. Will increasing the pressure give an increase in output temperature at the...
  3. S

    Vaillant boiler query

    I have a Vaillant ecoMAX 828/2E condensing boiler. The pressure gauge at the boiler is .75 bar and I want to increase it to 1-1.5 per the manual. The reason I noticed the low pressure was I turned the heating up at the boiler with no change in heat at the radiators. There is a built in...
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