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one of my house side wall has been render with sand and cement. And need help with the following; how long do I need to leave it before painting it? there is half tube left of SBR PVA. can I mix it 5:1 and give it one coat before applying the masonry paint any recommendation for paint? it is...

I run the bath tap for nearly 5 minutes and the boiler is behaving, no loud noise, it is normal now. I think the problem was with the pump. and the less loud noise I reported yesterday was due to some air trapped in the system which has settled now. however, i will keep monitoring it and...

sorry Ian, yes you are right. the DHW tap is next to the boiler in the kitchen. I will try to run the bathroom tap and load another video

I managed replaced the head of the pump with a working second hand head taking from Worcester 28CDi and refitted the whole pump back, the noised has reduced considerably but still, see below link. it gets worse as the boiler get hot and only when there is a demand for DHW when the gas valve...

what do you think the reason for the noise?

thanks will try this tomrrow, however, i have already taken off the pump. it is rather strange one because the bottle air vent attached to it. I have physically and it is rotating freely. how can text it electrically to make sure it ok before I put back?

do you mean Sentinel x200

Alpha 240E boiler fires up ok but after few seconds (particularly when there demand for DHW and when the flam starts going high) it makes very loud noise. I think the issue is to do with circulation. the bump is going. can someone confirm please.

yes that is correct, the yellow on the left is the thermocouple.

forgot to mention that I kept this running for 10 minutes and the carbon monoxide in side the kitchen did not detect anything.

see below youTube link to a video the oven is fan assisted and has recently been cleaned. there is a big fan at the back circulating air inside the oven stoves oven flame - YouTube

what cause the gas cooker oven to produce yellow flam and how it can be treated.

many thanks, you are spot on, this is the right instruction. just to confirm my understanding and if we say the boiler is the starting point so that everything is controlled from the same point. I need 4 core cable and the cores will be connected as follows at the boiler end; brown to the L...

I am trying to wire my under floor heating wiring centre back to the boiler so that it can fire when there is a demand for heating. And this is how the system is set up. the room thermostat and programmer (one in each room/ one zone) has three wires, N, L and L1 (live switch), these wires...

the under floor heating is controlled by wiring center. this wiring center get the order from wall thermostats when there is a demand for central heating. the wiring center in turn open the zone valve, switch on the plumb at the manifold and send a signal to the boiler to fire up. in the boiler...

I understand this is an open free forum and I am entitled to share the knowledge and benefit from other people experience. Therefore, i am not asking you to do the search for me. I am directing my question to whoever can positively and politely help.

is it safe to calculate the heat loss from the under floor heating CAD design, see attached, if so then, the total output heat from the 3 manifolds is approximately 15kw. add another 1kw for the small radiator in the main family bathroom would make it 16kw. if the above assumptions are...

before I started my extension 2 years ago, Thames water redirected the main water supply and run it along side the house. however, they fitted a lot of reduction adaptors to connected it to the 15mm pipe inside the house. I am in a process of upgrading the heating system by installing an...

I used the free version. but still I do not know what to select. for example U Value Roof/Ceiling Glazing (W/m2K) . I do not have glazing in my roof. it is a normal pitched roof with 3000mm mineral insulation but all the options refer to glazing or U values which do not know what it is.

the calculation might be wrong, I only entered few parameters correct but the rest I did not understands (particularly the UV values) so just gust them, is there and instructions to show mw how to use the heat loss calculations?