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Install thermal store, I wont do them any other way.

does the central heating work ok when the water is switched on, if not i would say a faulty flow switch stuck in flow position. Turn the water supply off and remove the switch and try it.

forgive me if someone has already said this but you should really have a stat to operate the central heating pump so that the temp in the store cant drop below 60-65 deg,this would make sure you always have enough heat for DHW. I do know this does not solve the problem with the boiler but it is...

Try Maincor ufh, not the chepest on the market but one of the best.

Scatmanjohn I would just give up as some only hear what they want to.

Inhibitor does exactly what it says on the tub, if you don't test the concentration of it and keep it toped up what do you expect.

I would still try and stretch the finances to a thermal store, this enables the solar panels to provide more hot water and any excess can go towards the central heating in spring and autumn when its on, this makes payback on solar much quicker. Get a thermal store that has connections on it...

I cant belive all the rubbish i have just read, it happens on this site every time thermal stores are mentioned. My basic advice is get rid of your plumber before he makes a mess of your system and ask your architect if he can recommend an installer that knows what they are doing. The...

I think the H2 panel is more complicated than need be, all them motorized valves to maintain. I often wonder how they got it passed for use on solid fuel,but for me its a thermal store every time for solid fuel.

just blank off one top and one bottom at opposite sides, I usually use the bottom one as a drain off. I don't think much of the H2 that you are connecting up to.

Don't spoil your conversion with a combi, are you having a wood burning stove? if so i would recommend getting one with a boiler and linking it up with a gas boiler to a thermal store, then you would have plenty of hot water and you wouldn't be tied to one energy source, It also gives you the...

I would use a thermal store every time with under floor heating and solar. Then solar will also contribute to heating and not just DHW

if the boiler gets up to temp are you sure your pump is working or maybe even full of air

I would spend the money on insulated dry lining or cavity insulation, as much loft insulation crammed in the loft as possible and upgrade your glass. Energy prices are only going in one direction.

can't picture that rad as it is a while since i used them but they are made by myson so probably the same as myson's own, so ask nicely at a plumbers merchant if they have a damaged myson. I am surprised if you local plumb centre didn't have a damaged one they could have taken one off.

The only way between the two options would be the twin cylinder, but have you considered a thermal store which would provide you with ch from your stove also you would get mains pressure hot water. Have a look at the gledhill web site for more info. Although it would cost more they are worth it.

Looks as if pump is pumping directly from boiler to manifold and not drawing water through TMV. TMV should be between boiler and pump. also nothing to do with UFH good practice to turn pump head around so electrics are on top

you could run it of the same pipes but because its not a separate zone it will only work when the radiators are on.

Grant for me every time with Firebird as second choice. Forget worcester, they have had their day

If your new oil tank is top outlet with anti-siphon device then there is hardly any risk, if it is a bottom outlet and gravity feed then it would be advisable to turn off.