It doesn't need to be "cold", but shouldn't get warm/hot. I guess a couple of degrees lower than house temperature would be ideal.
But we're sticking a
MVHR will extract from the kitchen, but what to do about the larder?
Initially I thought no ventilation, and (obviously) no UFH.
But would it be better to put an MVHR return into the room? That should be, generally, a lower air temp than the house. And there needs to be some air movement in there to remove the heat from the fridge.
And what about insulating the internal walls, would that help to keep it below the house temperature? or would that keep it warm from the fridge?
And what about UFH in the adjacent rooms, should that be kept away from the shared walls to the larder? With the amount of steel in an insulated slab I can see the slab being a fairly even temperature even where there isn't UFH.
Any thoughts appreciated.