Discuss TBOE radiators in new build incorrectly piped in the Plumbing Jobs | The Job-board area at PlumbersForums.net
When designing a heating system using rads a heatloss calculation is completed to determine how much heat is going to be required to keep the room at the required temperature (say 21C) when it is, say -3C outside. This is used to select a suitably radiator to do the job. As others have said the outputs the rad manufacturers state is based on being tested in a standard way (MW-air temp = 50) Here is the important thing in your case - they also connect up the rad in a certain way, typically Top & Bottom Same End (TBSE) if you change the way it is connected then you change the radiator ability to heat the room (stated output).I need someone to explain why the return should be at the bottom and what difference will it make to the system.
Engineer came out yesterday as they had to rehang the radiator which was not hanged properly.
Also tightened the bolts which were loose to get rid of the leak in the Heat Exchange Unit.
Regards to the Delta Temperature.
The Exchanger has flow temperature set to 75 degrees. The return temperature using thermal camera is 50 degrees, I assume this is actually much more like 70 degrees as the incoming temperature was read as 53 degrees.
Anyway we still have a lot of air in the system, he said they will powerflush the system.
He is insisting it does not matter if the return is at the top.
Also stated 3 hours to increase the temperature of the room by 2 degrees is due to room size and that we are on ground floor.
After they remove the air from the system I will have to hire someone to get a report done.
I need someone to explain why the return should be at the bottom and what difference will it make to the system.
Regards to the Delta Temperature.
The Exchanger has flow temperature set to 75 degrees. The return temperature using thermal camera is 50 degrees, I assume this is actually much more like 70 degrees as the incoming temperature was read as 53 degrees.
Thanks. You guys are brilliant offering great advice. Also you have common sense unlike the cowboys I am dealing with. As we are in our defects period I will fight to get this resolved. I will keep you guys updated but this could take some time.
I asked them how long would it take to swap the pipes and they said 2 hours. So do not understand why they simply won't just swap the feeds around.
I don't supposed you took the flow & return water temps of each one do you John? only what would have told us the heat out put. Interesting to see the heat distribution across them & the mean water temp 51.53 top, 60.93 middle & 59.2 bottomAnything in the interest of science.
All temps taken after 40/45 mins, the BOE gave the fastest warm up from cold.
View attachment 37621
View attachment 37622
Reply to TBOE radiators in new build incorrectly piped in the Plumbing Jobs | The Job-board area at PlumbersForums.net
We get it, advertisements are annoying!
Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.