Adding radiators to combi

[Alimoooo]

Hi all
Just brought a house with a comi boiler
The boiler is situated in the utility room
The utility room and downstairs toilet do not have radiators
The last radiator on the run is in the kitchen and theres no way of extending the run from the kitchen radiator as the floor has tiles which I don’t want to dig up
If i was to cut into the return and flow by the boiler and add the radiators that way would it mess up the existing radiators as the new rads would heat up 1st as thy are close to boiler

 

[Jurassicspark]

That's why balancing is a thing.

 

[Alimoooo]

So once balanced i should be ok?

 

[geraldthehamster]

Can you go up and over, putting the pipes under the first floor boards?

 

[Alimoooo]

the utility room is behind the garage which is single story

 

[johnny2007]

Yes, you can.
I did exactly that when I moved here and after balancing it worked perfectly.
You'll need to almost close the lockshield completely on the closest radiators.
When I repiped the lot a couple of years ago I rerouted them differently though.

 

[Alimoooo]

thats good to hear, Yh maybe in the future when extending house will probably rip everything out
Just need some heat in the utility room and toilet for now
At the moment every radiator works perfectly all seem to get evenly hot
Just a bit afraid that they will not work
Your experience gives me confidence to do it now
Thanks