It is a logger that measures the operating hours of an apartment.
It starts the burner and the circulator.
It has a non-overheating system of the boiler from the hot water, with the characteristic that the last solenoid valve remains open, after closing the last room thermostat.
Highly concentrated with 100% pure propylene and three special additives that make it the most advanced and safe antifreeze market.
With triple prote..