dpmiller

have a dressing room beside the bathroom?

it'd be worth looking. It would be rare for such a large tank to have only one element, I'd say.

I'd say it's very pertinent. Another angle is that many of the TF suppliers will actively refuse to do a formal quote unless you've actually got planning permission, you mightn't even be able to get a guide price from some until that time. They're *that* busy...

nearest pole looks like 240v so you would certainly appear to be on the end of someone else's transformer and yes, it might need an expensive re-size to give capacity for you.

I'd expect a dry bearing to squeal like a pig as it nipped up. Does that boiler have a sight glass, or can you run it with the baffles out for a minute? You can do a rough pressure set by flame size- as big as possible without actually touching the back wall...

which one were you thinking of?

remember it's a split, doesn't make things easier...

Good thing you didn't buy it then!

do you have an accumulator?

the default setup on my ASHP was return temp too, but "return" in this case is a wandering probe that could instead be in a buffer tank. I've now re-set it to flow to try. Power consumption seems very similar in both modes. In both cases my external probes tell me that return temp pretty much matches the circulating temp in the slab, but the delta and pump speed control are radically different. Tis velly interresting. I'm waiting for a flow-setter coming so I can get the pump speed best optimised. It's PWM but the limits are adjustable, plus I've got a secondary in the plant room too.

they do a kit with various fittings too or you can bodge one but a glycerine filled gauge is better, yes. Danfoss pumps are 1/8"BSP yes but I've no idea what the Riello is- the pressure gauge screws into the hole at the top of the long hex extension IIRC?

Nope, the nozzle presure will be something between 100 and 150psi.

the meter is on the "wrong" side of the Solic to my mind. But that doesn't account for a near-3kW load mysteriously turning on...

something's turning the immersion on still, I fear...

or the motor, or the control box... /hate Riello, sorry...

"a pump for RDB2 please" from your local knowledgeable wholesaler... Still no guarantee it's the pump, could be the solenoid going O/C and I don't think the pumps come with a new coil?

and? any updates? Chris seems pretty knowledgeable.

so what (in numbers) *is* the humidity in *any* part of your house, or outside it for that matter?

all our battening is 35x50

no , set to depressurise. easy to feel draughts then...

so the plastic case is directly on the wall then, the top hangers aren't isolated IIRC. Need to rubber-isolate the hanging points or maybe build a shelf and set it on it, over a rubber layer.

PUT A HEATER IN THE ROOM FFS!!!!!!!!!!!!!!!!!!!

I "feel" you still gotta read up on dewpoints and condensing surfaces.

I just went with their cheapest blue stuff and couldn't fault it, tbh.

honestly Clive it's so internittent we're clutching at straws. Pump/ control box/ tiny air leak in the oil line that builds up to a big airlocking bubble? All possible...