Combi with UFH (no rads)

[CitizenBob]

Bit of advice needed. Searched but couldn't find anything about Combi's and UFH with no rads.

Customer wants to have a combi, UFH but no radiators. Is it a good idea to have a single radiator on the system to provide a heat dump? Or should an auto-bypass suffice? If an auto-bypass then close to the UFH manifold or close to the boiler?

 

[oz-plumber]

If the combi is set up correctly, you shouldn't need either.
Unless all the zones are on actuators, but then why would that be the situation

 

[Scott_D]

Choose a boiler that can be range rated to match the UFH