Something is really weird here. Can you describe the rest of the hearing system? Is it steam, or circulating hot water? What is the fuel source? Is there a tank of hot water, or is it on demand?
That switch just looks like it sets where the hot water can go, but there would have to be something else that drives when the water circulates. But running a pump all the time would be expensive.
Are there perhaps thermostats on the radiators themselves?
Something is really weird here. Can you describe the rest of the hearing system? Is it steam, or circulating hot water? What is the fuel source? Is there a tank of hot water, or is it on demand?
That switch just looks like it sets where the hot water can go, but there would have to be something else that drives when the water circulates. But running a pump all the time would be expensive.
Are there perhaps thermostats on the radiators themselves?