Hi, I'm new here, but I've already gained quite a bit of valuable information.
My wife and I just purchased our first home, and it has an oil furnace (approx. 2011 model) with hot water radiators in each room of the house. The bill of sale says the house was built in 1940, but someone else told me it looks more like 1840. I've lived in old houses before, but not one with hot water radiators. We will be replacing the windows, but I'm still concerned that the system might use a lot of oil in the cold winter months. Does anyone have experience with TRVs (Thermostatic Radiator Valves) to control the temperature in each room, or is one thermostat sufficient? I know you can adjust the valve on each radiator, but is that good enough?
I've also been looking at radiator covers which can divert the hot air into the room, and possibly save energy for other rooms.
Each of our radiators has 2 pipes coming to it. Does the hot water run through each radiator before going to the next one?