On Fri, 25 Oct 2019 09:17:52 +0100, alan_m
wrote:

On 23/10/2019 14:24, T i m wrote:

Ignoring the binary / analogue action, what is the (functional /
thermal control) differences between a thermostatic rad valve and a
room stat / room? And we are only talking about the ability to manage
the temperature in the room, nothing else / irreverent thanks.

This should be funny ...

On a cold frosty morning and the TRV is fully open it cannot tell the
boiler and the pump to switch on to provide heat. The room remains cold.

Nope, because as soon as the timer calls for central heating the
boiler and pump are turned on? If you want heat outside that you set
it to Continuous.

On a cold frosty morning and the temperature is low a room thermostat
can tell the boiler and the pump to switch on.

See above?

Cheers, T i m