Ruled out everything near enough with my vertical rad on 10mm microbore pipework, tried:
- Balancing (all rads are about 1/20th of a turn and its made zero difference).
- Flow is correct direction.
-All other rads work perfectly.
All my rads get very hot by 10 minutes of the combi boiler starting. At this point the very first panel of the vertical rad starts to warm up then is hot from 15 minutes, however it takes an additional 15 plus minutes for the rest of the panels to heat up, and even at this point the bottom half of the rad is a lot colder than the top half.
I assume if the top gets hot then bleeding isent the issue?
- Balancing (all rads are about 1/20th of a turn and its made zero difference).
- Flow is correct direction.
-All other rads work perfectly.
All my rads get very hot by 10 minutes of the combi boiler starting. At this point the very first panel of the vertical rad starts to warm up then is hot from 15 minutes, however it takes an additional 15 plus minutes for the rest of the panels to heat up, and even at this point the bottom half of the rad is a lot colder than the top half.
I assume if the top gets hot then bleeding isent the issue?