Only just realize you have a revotec thermostat installed. I ordered one as well, but I am unsure on which radiator hose to install it. Did you install it on the top or bottom radiator hose? Perhaps could you share a picture?
I bought a chinese aluminium radiator, and there is an otter switch bung that’s plugged of what seems to be a plastic plug. I intend to leave that unused like that and only rely on the revotec, but I amnot sure about the plug. Perhaps I should try to find a metal one, but then again galvanic corrosion might be an issue, unlike with the plastic plug.
Jan