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I will get the installer in then and get it serviced. We've had a new meter installed recently and the guy who did that didn't go out to the boiler so maybe the gas flow has been changed during Ng that to affect it. I'm in over my head now but appreciate everyone's help in pointing the finger...

I do, it states 18deg in, 58deg out @ 18l/min So this is how pointing towards the boiler not working quite as it should be to have such a drop in output, correct?

So are you saying their is a possible boiler issue too? Still doesn't explain the difference at different outlets though!

Ok right so, I dialed the rising main down to a less powerful flow as an experiment, so these figures are based on the reduced flow due to that: Kitchen 6.5l/m flow rate, 13deg cold, 54deg hot Bath 7.3l/m flow rate, 43deg hot. I see the higher flow rate means it will be colder, but both flow...

And maybe a *slight* Improvement in the shower, but nothing to write home about. My confusion lies in the two outlets producing scolding water and the other two lukewarm - even though they are the same flowrate.

We have no high flow rate fittings

Well ours is also a 24kw boiler by logic. 12months old. It's a really ****y little shower in relation to what you can get. Just the standard head size and flow, and regular sized taps everywhere. It wont heat to a comfortable level in the bath or the shower even if they're the only thing...

But regardless of the 3/4 taps, it's still only 15mm feed pipe. And with a similar flow rate (albeit by eye rather than a measurement) the basin is MUCH hotter. Nevertheless I will try a flow restrictor on the bath. Also it's a 12month old not-cheap boiler so surely it's it's output would be...

Yes it does

Ah right, 100% not then! Definitely no tmv there, or anywhere (apart from in the shower mixer)

Bath taps the same age as the basin taps and shower valve - 9-10 years? Kitchen is 2years. I don't understand why the basin and bath are different because they're the same tap. And we're cheap at the time which makes me presume they wouldn't have had tmv?

The bath isn't a mixer, just two bog standard taps.

Right, a confusing one! I have a combi boiler system, hot water to 4 outlets. The first in the run is the kitchen sink, which gets hotter than holy hell. The 2nd is the bath, tepid. The cold tap is never turned on when filling a bath. The 3rd in the run is the basin, which like the kitchen...

No it's a brand spanker!

I have adjusted it, it's either a wavy cold candle like flame or roaring. Don't seem to be able to get a nice conical flame no matter how precisely it's adjusted

I have a rothenberger superfire 2 torch, I was wondering what size tip you pros would recommend for 15mm pipework? The one that came on it seems a bit light an f18 afterburner!

Ahh ok, so this switch is the actual light switch so the fan comes on with the light, and the permanent live into the main fan will keep it running on timer after the light has gone off? Confusing way of drawing the schematic if this is correct!

Hi all, Looking at the attached photo, the fan I have for my bathroom needs the normal double pole switch, but also another connected to a 2nd live called T. Surely this could simply be hardwired to the live and use the dp pull switch to turn the fan on and off?

This what I have, a programmable salus rt500, so this sets temperatures for different times of the day, and the boiler therefore should be permanently on? My only question with this is, when the room gets to temperature and the thermostat stops demand, if the boiler is switched to permanently...

So the usual set up is boiler set to permanently on, thermostat to "override" this and stop demand when room is up to temperature?