The radiator doesn't heat after i've added a plastic pipe to it

[Andrii]

Hi everyone!

I need you advice to solve a problem with my central heating system .

I am not a plumber - and sorry for silly questions .

I bought a 15 meter plastic pipe/tube - and laid it down under a laminate floor firstly .

After that - i disconnected the hot water flow from the nearby radiator and connected to the plastic pipe - and the another end of the pipe I brought it back to radiator .

Basically - shouldn't be any problems - as what i did is -i just made the water flow pipe longer (under the floor)

I hopped i can get a warmer floor - but the plastic pipe heats ok only half of its length - and at the other end where is connected to radiator is only warm a bit - its not hot (

In other words - water doesnt circulate through the radiator ....

Please advice my - any chances i can fix the problem - or shall i remove the plastic pipe ?

Thank you very much

 

[Andrii]

I also checked - there is no air in the radiator or pipe

 

[southcoastboile]

jobs like this should be left to a professional. When underfloor heating is installed it is regulated to a certain temprature, your new bit of pipe won't be. Turn all rads off in the house bar the one not working. This will fix it and most likely make alot of the valves you turn off leak in the process so check them if they are not trv's. If they leak then you need to call someone in as you obviously don't know what you are doing. Sorry to saound funny, just trying to help

 

[southcoastboile]

forgot to add the heating will need to be on. Once rad is hot turn all others back on, you may have an airlock or issues with sludge

 

[Andrii]

We have 13 radiators

I will try tomorrow - to turn them of - apart the one does'nt heat

and will run the system for about 15 20 min ?!

I am a bit worried not to make it worse ...

 

[southcoastboile]

anyone who knows what they are doing would try this first

 

[southcoastboile]

ive just looked at the picture. Are you planning to lay laminate floor over the pipe like that?

 

[Andrii]

nope - its an old photo - the pipe is in 15 mm concrete already - and after that - i will put the laminate ?!

I know is very unprofessional

I hope at least it will heat up

 

[Andrii]

that will be a utility room - and is quite a cold one right now ...

 

[southcoastboile]

ok, try what i said then, will only take 15 mins and will probably work