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On the Promax 24 HE the manual (p24) details 3 jumpers on the circuit board and describes how the flow temperature can be altered from 82 to 63 degrees by removing jumper 2. The boiler I am looking at has 4 jumpers on the circuit board !! Can anyone explain how the four jumpers function as...

Can anyone identify this plastic decking and supplier ? I need to enquire about sealing strips to prevent water passing through it and soaking the joists supporting it. It is installed on a bridge structure and the joist should be kept dry and the area below it also. Overall width 160mm. Top...

I live in Dormer bungalow and the Hot Water Tank is on the ground floor under the stairs and the header tank is in the loft space above the first floor. I want to install a shower in the bathroom on the first floor using a mixer valve, but there is not enough head to give enough pressure and...

Can anyone tell me what effect reversing the flow and return pipe connections on an open vented system using with a Worcester 15ri condensing boiler would have please ? Thanks in advance

Can anyone give me a second opinion on this. Our power supply comes from the garage which is below the house. The meter, main switch and a small fused distribution board for the lights and power supply in the garage are all in the garage. The power supply for the house goes up to the main...

We need to replace our gas CH boiler. We need a regular boiler for our open vented system plumbed Y plan with a rating of around 15kw. The efficiency and warranty of the Viessmann Vitodens 100 WB-1 18kw looks attractive,but reading on here there seems to be some reliability issues with other...