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Boiler in the kitchen, HW tank / cylinder in the airing cupboard

My daughter and partner just moved into their house and seem to have a crazy problem with their hot water system. The boiler is providing hot water but, water takes AGES to actually arrive at the tap after the tap's turned on. I'm not talking about the hot water taking ages to arrive, I'm...

Ooh, actually, thats very good point and no one’s suggested that including the heating engineers! How could I find out?

We have an old single-skinned tank that’s working just fine with no leaks but every now and then, when the wind is in the wrong direction, you’ll get a strong whiff of heating oil coming from it. We’ve had the tank inspected and checked for leaks a couple of times but on each occasion, both...

Doh!

Hehe that would be telling!

I’m having the usual constant vs timed hot water debate with myself and just need to know how the tank behaves when supplying water. As far as I understand (and I’m probably wrong), if your DHW is timed, the boiler will come on and heat your water to 60C and go off. If you then go and have a...

Thanks guys, all done and seems to be working. Now just have to sit back and collect all those sweet, sweet savings..hopefully.

Hi all, I’m trying to install my Nest E as per the instructions for a 2 wire system there doesn’t seem to any useful labels on the existing thermostat that would allow me to connect to the correct terminals of the Nest E. All I have are 2 wires (blue & brown) and a clipped earth that are...

Just had a conversation with Nest support: “The temperature sensors from the Heat Link E are an experimental feature and would be used in the development of future features and products, but don't currently serve a purpose. The Thermostat measures the ambient temperature using its own...

If you scroll down to Heat Link E, you’ll see that the Heat Link also has a temperature sensor. I’ve seen this also mentioned in a few reviews on YT! https://store.google.com/gb/product/nest_thermostat_e_specs?hl=en-GB

I’ve finally taken the plunge and bought a Nest E which I’ll install myself to replace my 150 year old Honeywell CM51 thermostat (2 wire). It all seems straightforward but I’m a little confused about exactly which temperature sensor is used in determining the current room temperature. It seems...

Doesn’t lichen sit on top of the slate though? All these areas feel exactly like the slate areas. Is this significant?

No, that’s not what I meant! There’s nothing actually growing that you can feel on the slates. If you close your eyes and run your finger across a tile, you can’t feel the stained areas from the ‘normal’ tile area at all. We have some similar looking lichen growing on bits of the patio and you...

Yup, white vinegar was the first thing we tried. Also 2 much stronger acids had no effect apart from bleaching the affected area to nearly milk white.

How would you remove lichen?

Doesn’t come off. We’ve tried all the usual stuff to remove lichen and none of it works. It seems to have removed the actual colour from the slate itself.

Not lichen apparently.

These marks appeared several years ago over the period of a few weeks on our Welsh Slate roof. We eventually got fed up of looking at them and asked a roofer who specialised in cleaning to see he could get the marks off. Try as he might, using scrubbing by hand and eventually 2 types of acid, he...