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I have extended my house from 4 bed detached house to 6 beds with 4 bathrooms. I have also replaced all the windows and upgraded the CH to all underfloor, both upstairs and downstairs. 3 manifolds, each serves 6 zones. both DHW and CH are currently supplied by 28cdi Worcester combi boiler that...

how to contact the landing light to 3 switches; one at the bottom of the stairs, one at the top of the stairs and the third onw will be further down the upstairs landing. I have wired 2 way lights and I assume the the third switch (which is the further down the upstairs landing) will be the...

how to stop damp like this it is rising damp at the front setting room, see pics

yes it is the first floor. the the ground floor has already been done with 100mm ridged broad, underfloor heating and screed. I am trying to insulate the first floor so that I can fit my aluminum heat spreader plates. what is the thickness. 100 or 150mm

I am trying to insulate my house first floor i.e putting insulation between joists so that I can install underfloor heating. what is the best cost effective insulation and what is the thickness

I am modernizing my house by installing underfloor heating in whole house, upstairs and downstairs. However, due to the layout of the house I need 3 zones, i.e. 3 manifolds, each 6 circuits. What is the best way to connect these manifolds back to the boiler? I have 3 manifolds 3 wiring...

I am installing a bathroom upstairs. I understand the pipe that is going down from the boss junction has to be 4 . What is the minimum size I can fit on top of the boss junction fore venting? Can I fit 2.5 inch?

we are renovating our kitchen and replacing the old (60cm) cooker with either 90cm or 100cm. However, if we install 90cm the horizontal distance between the sockets (on both side of the cooker) and the cooker is 15cm but is we install 100cm the distance will be 10cm. ideally we would like to...

which shower trap to order for shower tray with hole diameter of 50mm. there are so many variations in screwfix sits, would the blow fit https://www.screwfix.com/p/mcalpine-shower-trap-chrome-70mm/5426p.

sorry for got yo attach the photo, here it is

attached a photo of the valves. what I am supposed to look at. both plates going across have clearance. shall I tightened the blot of untightened

try this link

I run it without the air filter but still the same. however when it start now it has no power at all, see attached

there is filter in the system in the system which I did bleed today. there is a lot of black stuff came out. see pic. this might be block. how do I check whether or not the diverter valve is faulty.

the display show the temperature which is 90 degrees and keep fluctuating between 90 and 88 however, as soon as I open the hot water tap. I get very hot water, (you can not even touch it) for few second all the rad have normal control manually operated and all open, no trvs

do you mean the blue and the black ones that are located inline on the same pipe

I do not think so but here is a pic

just did, and set up the wall thermostat trematurid to 30, the temperature inside the house was 19 and boiler still doing the same; the ch light is lit on the temperature control the flame is also on briefly but none of the radiators get warm.

this one

the DHW is working without any issue but the ch is not. when there a demand for ch, the central heating orange light idslit on the boiler, and the pump is working but no flame and no circulation. what could be the reasons?