To save costs (and as an experiment!) am intending to construct the two sets of manifolds with 22mm push-fit copper tee pipes (with 15mm reducers) and loca te it under the ground floor staircase in cupboard, about 4m from the boiler using 22mm insulated copper pipes.



I will balance each loop with gate valves (or any ideas?) on the return manifolds, using temporary temperature gauges clamped onto each return pipe to get even return temps. I will put stopcocks on the input valves =

for isolation purposes.I intend to only use the in-built boiler pump to circulate the heating, and

use the in-built boiler water temperature thermostat and timer to control the room heating temperature.



I can will make allowances to retro- fit TRVs in each room if the room on the upper floor loops only If heating is uneven. But I intend to have the heating on in all rooms constantly from November to April

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