Hot water heating systems require some maintenance, including draining the boiler and venting the radiators to ensure things are running efficiently.
- Lubricate the circulating pump motor on your boiler. Use a lightweight oil, as per your boiler owner’s manual and pour it in the oil cup.
- In the fall and throughout the season of use, you need to vent or purge radiators if they do not already have an automatic purge system.
- After purging make sure pressure levels are ok. You can find out what pressure level is recommended by the boiler manufacturer in the operating manual. You then let out the air in each convector, if needed, until the pressure is at the recommended operating level.