The boiler is potentially very dangerous as it burns diesel to heat water (i.e. it gets above 100'C). It also has a high flow of water.
There is lots of potential there for starting a fire or serious damage.
The 2kW heater will be run by a 10W 12v pump that cost £14 off Amazon. Worst case...
That was a bit rude trojanhawrs.
I don't see a need for a header tank. The boiler already has a header tank but the storage cylinder doesn't need one - the water is not used, it is circulated. I will also control evaporation, probably through a gauze. Water flow is minimal and if it gets an air...
"He’s not actually proposing to make an unvented (pressurised) system. He has used that term in error in the first post."
Ooops, so I have. Thanks for that - edited now.
For some reason I type it the wrong way around, probably because vented=unpressurised, unvented=pressurised. Think my head...
Ah yes, after a bit of research you are right! The uniSTOR does have an external pressure tank and no baffle/bubble - which is great news! That means the tank is not an unvented tank, just that it is strong enough to be used in an unvented system. There's nothing stopping me using it as a...
"I don't think the Unistor has an internal baffle, I believe it uses an external EV"
That kind of makes sense as this is the photo from inside looking up at the main draw pipe. The centre pipe is only about 5" long until it exits. It doesn't look like a baffle and has nowhere to move, however...
I don't plan on a header tank, just taking water from well below the top of the tank, probably from the pressure relief valve pipe. My only real issue is that I dont know enough about the baffle or bubble. I put an inspection camera in but does seem to help. How do I disable that?
As for...
I have an old Valliant uniSTOR 210/2 S and I want to repurpose it as an vented*tank.
I used to have a pool with a 40kW diesel boiler. The pool is gone now but I want to repurpose the boiler to run a radiator in my garage.
My plan is to heat up the 210L tank and then pump that water through a...
It's the 22m rule that is the problem. The actual building is fine, just the use of the room which is at fault. I could have exactly the same layout and windows and use it as a bathroom no problem but when I want to call it a bedroom I can't make it. If it were already a bedroom there would...
There is a house opposite, exactly 21.9m away. You can't have a 1st floor window less than 22m without it being frosted unless the window opposite is already frosted.
I plan on building to 2.72m out or 19.18m away.
I did think about that but discarded it as the window will be double glazed and there is a reasonable possibility that there would be firemen below it.
I checked with building regs people (who were extremely helpful and fast) and they confirmed that a key in a 'break glass' box is acceptable for Egress requirements.
In case you wonder why, planning have specified that a window must be non-opening to avoid privacy issues with neighbours and I'm...
For future reference, I got in touch with Building Control who were exceedingly fast in replying. While this is largely how the conversation went, ask specifically for yourself should you need it.