newhome Posted February 23, 2018 Author Share Posted February 23, 2018 11 minutes ago, MikeSharp01 said: PS was the TS temperature rising, even very slowly above the 45 / 50 or was it dead stable? Dead stable. Boiler at 65 - TS dead stable at 45, boiler at 70 - TS dead stable at 50, and boiler at 75 - TS dead stable at 54. I left the boiler on all day today to check and it's been at 54 the whole day. Link to comment Share on other sites More sharing options...
newhome Posted February 23, 2018 Author Share Posted February 23, 2018 22 minutes ago, SteamyTea said: So have I missed anything tonight, apart from knowing that good tea can be made up there. The tea is very good up here! Can't beat a nice cup of earl grey. 1 Link to comment Share on other sites More sharing options...
MikeSharp01 Posted February 23, 2018 Share Posted February 23, 2018 Hmmmm... That sounds Odd - loosing 20Deg across the circuit feels very high and is incredibly wasteful. Might need to insulate the pipe work from boiler to Heat exchanger and heat exchanger to TS as well as the heat exchanger. (Unless somewhere there is some system in control of the TS based on the Boiler water temperature which feels like a remote possibility.) Link to comment Share on other sites More sharing options...
SteamyTea Posted February 23, 2018 Share Posted February 23, 2018 3 minutes ago, newhome said: Can't beat a nice cup of earl grey. Yes you can, easily. Earl Grey always tastes like someone put washing up liquid in it. 2 1 Link to comment Share on other sites More sharing options...
SteamyTea Posted February 23, 2018 Share Posted February 23, 2018 1 minute ago, MikeSharp01 said: Might need to insulate the pipe work from boiler to Heat exchanger and heat exchanger to TS as well as the heat exchanger. Pointing an IR thermometer all over the place (if it turns up tomorrow). will be very interesting. I frighten myself with mine sometimes. But as @newhome has an IT background, it won't be long until her place is wired up with environmental monitors (just share the code as my ESP2866 with a DHT22 and a BME280 decide to stop playing when I moved my router ) Link to comment Share on other sites More sharing options...
PeterW Posted February 23, 2018 Share Posted February 23, 2018 17 minutes ago, newhome said: Dead stable. Boiler at 65 - TS dead stable at 45, boiler at 70 - TS dead stable at 50, and boiler at 75 - TS dead stable at 54. I left the boiler on all day today to check and it's been at 54 the whole day. Hmmm ... faulty boiler thermocouple would do that... would explain why the TS never gets to temperature. Link to comment Share on other sites More sharing options...
newhome Posted February 23, 2018 Author Share Posted February 23, 2018 @MikeSharp01 Here you go . Taken just now. And the 3rd photo is for @SteamyTea . Bet you put milk in yours! Link to comment Share on other sites More sharing options...
newhome Posted February 23, 2018 Author Share Posted February 23, 2018 7 minutes ago, SteamyTea said: But as @newhome has an IT background, it won't be long until I don’t do infrastructure! Used to do software development, and now I’m just a bossy cow Link to comment Share on other sites More sharing options...
MikeSharp01 Posted February 23, 2018 Share Posted February 23, 2018 1 minute ago, newhome said: @MikeSharp01 Here you go . Taken just now. The difference is bonkers and means the losses are massive. Lets wait and see what the temperatures are at the various points when you can measure them. Link to comment Share on other sites More sharing options...
SteamyTea Posted February 23, 2018 Share Posted February 23, 2018 1 minute ago, newhome said: I don’t do infrastructure! You will, it is the crack cocaine of building technology 1 Link to comment Share on other sites More sharing options...
PeterW Posted February 23, 2018 Share Posted February 23, 2018 On 21/02/2018 at 01:06, Nickfromwales said: Getting closer... @Nickfromwales I think it’s piped wrong.... The schematic you posted shows multiple heat sources to a single heat bank. The top source on the picture is of a gas boiler, not an electric boiler on this storage tariff. It would explain why the boiler shuts down so quick too. If it is putting the full 24Kw into the top 25% of the tank, then as soon as it gets down to the top stat it’s cutting out - 75% of the tank is still cold or cool. The electric boiler needs to be piped as per the pellet boiler as then it will heat the whole tank and hence act as a buffer for the time that the E2000 is not available. I can’t see where the solar circuit is attached but I bet it’s near the top too - there is no way you can thermosyphon that much heat into a tank that size as it will stratify. Link to comment Share on other sites More sharing options...
MikeSharp01 Posted February 23, 2018 Share Posted February 23, 2018 3 minutes ago, newhome said: I don’t do infrastructure! Used to do software development, and now I’m just a bossy cow Yes but able to afford to leave a 24Kw boiler on all day! 1 Link to comment Share on other sites More sharing options...
PeterW Posted February 23, 2018 Share Posted February 23, 2018 12 minutes ago, newhome said: @MikeSharp01 Here you go . Taken just now. And the 3rd photo is for @SteamyTea . Bet you put milk in yours! Whereabouts is that on the tank for reference please ..? Link to comment Share on other sites More sharing options...
newhome Posted February 23, 2018 Author Share Posted February 23, 2018 1 minute ago, MikeSharp01 said: Yes but able to afford to leave a 24Kw boiler on all day! I only have it on for about 8 hours a day in truth. Today was an exception as I was checking a few things. In all that time tho the UFH in the room where it is working only raised 2 degrees. Means that’s fecked too? Link to comment Share on other sites More sharing options...
MikeSharp01 Posted February 23, 2018 Share Posted February 23, 2018 3 minutes ago, PeterW said: The schematic you posted shows multiple heat sources to a single heat bank. The top source on the picture is of a gas boiler, not an electric boiler on this storage tariff. It would explain why the boiler shuts down so quick too. If it is putting the full 24Kw into the top 25% of the tank, then as soon as it gets down to the top stat it’s cutting out - 75% of the tank is still cold or cool. The electric boiler needs to be piped as per the pellet boiler as then it will heat the whole tank and hence act as a buffer for the time that the E2000 is not available. That makes sense - in schematic the pellet boiler is the prime mover, with the heat pump doing a low grade heat input at the bottom of the TS and coping with the UFH if it can. Link to comment Share on other sites More sharing options...
MikeSharp01 Posted February 23, 2018 Share Posted February 23, 2018 2 minutes ago, PeterW said: Bet you put milk in yours! Milk in Earl Grey, my sainted Aunt, - somebody needs to spend time in the appropriate gulag for 're-eductation'. Link to comment Share on other sites More sharing options...
newhome Posted February 23, 2018 Author Share Posted February 23, 2018 1 minute ago, PeterW said: Whereabouts is that on the tank for reference please ..? Top left. Link to comment Share on other sites More sharing options...
PeterW Posted February 23, 2018 Share Posted February 23, 2018 3 minutes ago, newhome said: I only have it on for about 8 hours a day in truth. Today was an exception as I was checking a few things. In all that time tho the UFH in the room where it is working only raised 2 degrees. Means that’s fecked too? Your UFH is designed with a 50c flow (too hot IMO) and 45c return. If it’s only getting water at 35c then the delta exchange will be lower. Link to comment Share on other sites More sharing options...
MikeSharp01 Posted February 23, 2018 Share Posted February 23, 2018 There is at least one immersion heater there, what is that doing I wonder, is that the prod the system needs to syphon I wonder. Link to comment Share on other sites More sharing options...
newhome Posted February 23, 2018 Author Share Posted February 23, 2018 6 minutes ago, MikeSharp01 said: There is at least one immersion heater there, what is that doing I wonder, is that the prod the system needs to syphon I wonder. It’s just a back up if the boiler is fecked. It’s switched off. I have used it in the past. It takes about 3 hours to heat up hot enough water to shower. Link to comment Share on other sites More sharing options...
newhome Posted February 23, 2018 Author Share Posted February 23, 2018 Link to comment Share on other sites More sharing options...
SteamyTea Posted February 23, 2018 Share Posted February 23, 2018 (edited) 6 minutes ago, newhome said: It takes about 3 hours to heat up hot enough water to shower. If it is a 3 kW element and it runs for 3 hours, that is 9 kWh. You must take very long showers, or the heat (the old word for energy) is going somewhere else. Re the above picture. Isn't it limited to 65°C now, what the reset is for? Edited February 23, 2018 by SteamyTea Link to comment Share on other sites More sharing options...
PeterW Posted February 23, 2018 Share Posted February 23, 2018 Oooh as you have the screwdrivers out.. any chance of taking the cover off one of the UH1 UFH units and posting a couple of pics of the inside ..? Link to comment Share on other sites More sharing options...
MikeSharp01 Posted February 23, 2018 Share Posted February 23, 2018 (edited) Yes but if the immersion is powered from one of the cheap rate power lines it will be much more cost effective than the boiler in cheap rate times and it may, may, also help the water being heated in the top of the tank by the boiler heat the whole tank because it will set up a convection current in the tank. The immersion heater is all bar the shouting 100% efficient in that all the heat goes into the water, none is wasted - until it gets to the outside of the tank and leaches away into the air. Edited February 23, 2018 by MikeSharp01 Link to comment Share on other sites More sharing options...
newhome Posted February 23, 2018 Author Share Posted February 23, 2018 10 minutes ago, SteamyTea said: If it is a 3 kW element and it runs for 3 hours, that is 9 kWh. You must take very long showers, or the heat (the old word for energy) is going somewhere else. Doesn’t it need to heat up a great wad of water in the TS hence the time it takes? Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now