Recent content by PlumbBob

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    Suitability of 'Surrey' Flange ('S' Type)

    Thanks all, there is no side outlet on the cylinder, I think I would have to take it from the Surrey Flange.
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    Suitability of 'Surrey' Flange ('S' Type)

    Hi, I have a gravity system (hot and cold) and looking to get the best out of it by fitting a water pump for the hot feed. The existing cylinder flange already looks to be an 'S' flange (conveniently) but does look to have too many adapter fittings making it too proud to be effective - or would...
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    Chimney breast damp - please help.

    Have a look at this site, https://www.directstoves.com/resources/common-causes-of-damp-in-your-chimney-what-to-do-about-them/ You can get damp even for unused chimney breasts (I know I have the same issue!) due to the salt left behind from when it was used.
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    Damp advice .

    Are the external walls rendered? For the solid concrete floors, are they damp already?
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    Insulation Warm Roof required PIR

    Hi I am looking to create a ‘warm roof’, there is no insulation currently. Can I attach PIR boards over the rafters to save on cutting them? The roof is also vented, so how do I accommodate the vents?
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    Oil Boiler Rumbling/Vibrating

    Hi Oil boiler is rumbling every so often - is this air, water or contaminated fuel getting into the burner? I can't pick up any oil leak around the connections.
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    Bridging out 2 port valves

    I was thinking that @oilhead but the stove is 4 port and has 2 pipes running to own cylinder coil (28mm) unpumped and x2 22mm pipes (pumped) running to rads somewhere - I know as rads get warm when pump is running:) Yes @Madrab I will plan to do that, so pump is on the return (this is an old...
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    Extending Hot Water Feeds to New Extension

    Combi’s sense the flow and use that as a demand for heat - run may be too far / pipes too resistive to the flow to be enough to meet the threshold to trigger the demand? Just a thought.
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    Boiler Sizing

    You will find you’ll need less than you think. I did calcs and for 20 radiator house and it was 26kW - that’s with factoring in hardly any heat insulation (old house), hot water cylinder and few kW loss through pipes; remember you won’t want heat in every room all the time. When you look at...
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    Bridging out 2 port valves

    The top pipe is the HW valve, but yes it could be for draining purposes still. I’ve learnt the automatic bypass should be between the flow and return and I may change this arrangement now as I need to move it out the way for a new boiler.
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    Bridging out 2 port valves

    Showing the 2 port valves bridged, I’m sure this gate valve serves no purpose, and think there should be an automatic bypass between flow and return?
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    Bridging out 2 port valves

    okay thanks, yes heard of that, should I replace it with some automatic type valve?
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    Bridging out 2 port valves

    Hi Trying to work out how my heating is plumbed, why would output of S plan 2 port valves be also bridged by a gate valve (normally shut) ie the heat output from boiler goes to x2 two port valves - one for HW and one for CH, but why provide a means to bypass them? by the way I have a wood...
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    Duplicate - ignore

    Duplicate
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    Oil Boiler, Burner transformer leaking melting plastic and fuse blows

    Its looking like this is the cause of the problem (completely missed the melted mass of plastic underneath the burner until my better half spotted it!) Won't fire now, just blowing fuses every time motor is called. So is this is terminal case i.e. replace the burner (if it is I may as well...
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