First of all, it is not my boiler or my house so having a new one installed is not an option. Even though it should be the landlord's problem, he warned me months ago that the boiler was failing and he was not going to replace it. In fact, I was supposed to have moved out last November but I was granted an extension until May IF I wanted to stay. The house is being renovated then and he is ditching the steam radiators. My only option is to move out if the boiler fails altogether. Anyway, the temperatures are supposed to be dropping to -10* at night. The boiler does not hold water...Steam is going up the chimney from a hole somewhere. We tried boiler seal a couple of weeks ago and it did not work. Up until tonight, it was holding it's own but having to fill it 2-3 times a day. Now it runs non-stop and does not cycle at all. It warms the house up fast and the radiators get really hot but it runs until the water runs out (about 7-8 minutes)and yes it does automatically shut off when the water runs out. Is this a sign that the boiler finally blew out or is it some other problem? It seems to me that if the radiators are getting really hot and I hear the vents working normally, it SHOULD cycle. I am no expert though.