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Hi It's a normal open vented system, with the vent going into the cold water feed. I've been searching the net since my post and found you can buy replacement immersion heater washers so I'll get one tomorrow, drain the tank down and see if fitting a new one helps. I guess I'll need a big...

Hi All This is now problem 365 with our heating system. We have air in our hot water tank and it's most noticable when the HW recirc pump is running. During this time you can hear the gurling and slushing and if you shake the tank, you can hear it slosh. The HW recirc pump is on a CH...

Hi Sorry it's been so long in reply - I've just got a proper job in London so I've been tied up with that. It may be I get to do my Part P with the company so that will help. Thanks to all for your replies. Steve

Yes, to households. It's been an invaluable tool for me in optimising my woddburner/heat store/gas boiler combination. I've diagnosed a couple of faults with the system just using temperature data and it would be even better with state data ie pumps on/off etc. I had a problem with the...

I tried them too. They say it's a private sewer and they aren't interested. I tried the pre-1937 chat, but they said they only have to consider adoption and would require they were bought up to standard first. Surely it must be documented somewhere who owns them? Cheers Steve

Hi Spark123 Good point. A likely measurement would be for a pump which I think are around 100 watts, or just under half an amp. I guess the worst case scenario would be a manis short circuit, which would then induce a much higher voltage into the coil until the fuse/circuit breaker went...

Hi We've been chasing environmental health, planning and building control in the council to get the drains officially CCTV'd for years now. Everyone talks a lot, no-one does anything. What I'm trying to find out, is who's responsible for different parts of the sewers. I assume as the...

Hi both Thanks for your replies. At the moment I'm developing this for myself, but with one eye on the fact it might be saleable in the future. What I want to do is monitor very aspect of the system and then graph it. Do you know how you get a design certified? Yes, you have the idea...

Hi All I've been making a Central Heating monitor which monitors temperatures. Works great, but I'd alos like to monitor the state of pumps, motorised valves etc. The electronics for this is very simple and to isolate the low voltage computer from the mains supply for the pump, I'd use a...

Hi All We've had a problem with the sewers since around 2 years ago. This has a bit of a history, but here goes: We live on a 200 year old converted army barracks. When the MOD moved out, a developer bought the entire site. They sold off 4 of the original buildings and we live in one of...

Hi That's no problem I work on a laptop and live close to the sea, so I reckon I could skim it at least 50 yards :-) Thanks for your help. Cheers Steve

Ok thanks I'll hang off from retyping until you've spoke to admin. Cheers Steve

Hi Yes, I pressed submit after I'd finished. If you can find it, it would save me re-typing it all. If you can't, then I'l get me ole knuckled cracked again! Cheers Steve

Hi I just created a long post with a topic of: "hot water heats slowly after 50 degrees" But I can't find it anywhere. Do I have to type it all again? Thanks Steve

I think I'll start a new topic on the DHWS heating as we've wondered off the original topic which os now solve dwith everyone's help! Cheers Steve

Hi Onetap You're not droning on - I'm interested and appreciate your time. The gas boiler heat leak is now fixed and here's the graph to show it: To comment on your post: Worcester R40 40KW condensing boiler I have no idea if it's discharging heat outside as the flue's in the...

Hi Tony Yes the serial numbers are all preset and guaranteed unique. It's an 8 digit code which is pretty useless when trying to decide which sensor is which, so that's why I added the naming feature eg SF, SR.... You're right about the bus. It is one long piece of spaghetti and if it...

Hi Tony I don't think the X200 helped, but allowing an air gap at the back of the stove, enabling flow round the back boiler has helped a lot. The sensors are DS1820 chips which are attached to the pipework. The sensors are on a "1-wire network" which allows you to run a single cable...

Hi Tony I think I've managed to confuse you :-) The problem I've been staring at this system for 5 months now and think I'll meet myself coming back! Then I was uncertain about the direction of flow. As you quite rightly say, the final operation is just a standard NR valve working as it...

Hi Norcon Thanks very much for the info. So that's how heating engineers do it? Check the flow and return, either read off the graph and calculate the pressure, then buy a valve from a company that supplies proper data with their products and get the appropriate product to match/exceed the...