Replacing Radiators

[Magnet185]

Hello,

I would lke to replace 2 of the radiators in my house and change the locations which i can manage, I will require to drain the house which i've done before, but as of 2 years ago we've had underfloor heating installed so I ust wanted to ask how should one go about doing this, should the UFH be isolated to avoid air ect.. the Rads are on the the first floor and the UFH is on the ground floor.

Thanks!

 

[ReJect]

I think you have already answered your own question.
Rad floor level is on a higher floor to underfloor part, so no need to drain much lower than floor rads are on