Search results

  1. K

    Persistent air problem in hot water heating system

    Persistent air problem in hot water/heating (mainly the hot water) About 8 weeks ago I put new TRVs on the radiators, fitted a bypass valve and replaced a 28 year old grundfos pump with a new grundfos Alpha+. This system is a vented gas central heating type with a header tank approx 2m above...
  2. K

    Setting Automatic Bypass Valve for an old Baxi 381 boiler

    I'm upgrading my central heating system with Thermostatic radiator Valves and an ABV. Do you know the minimum flow rate for an old (but good) BAXI WM 381 CHB boiler set at 51700 BTU/15.15KW, the system use a grundfoss selectric 4 pump, 10 radiators and a mix of 10mm and 8mm microbore. Or...
Back
Top