How do I drain my boiler only?
- Turn off all power to the boiler. The power switch will be located on the boiler.
- Turn off the gas to the boiler system.
- Shut off the water intake valve.
- Let the system cool down for at least 30 minutes.
- Locate the drain valve at the bottom of the boiler.
- Open the drain valve by turning it counter-clockwise.
Keeping this in consideration, how do you drain a combi boiler?
How to drain and repressurise a combi boiler system
- Before you begin. Turn off the boiler and disconnect it from the power supply.
- Locate the drainage valve. The drainage point in any system will usually be the lowest point of the lowest radiator in the property.
- Open the vents.
- Opening the filling loop.
- Check for leaks.
- Bleed the radiators.
One may also ask, how do you drain a sealed central heating system? Draining a Sealed Central Heating System Start by turning off the boiler and disconnecting it from the mains power supply. You will then need to locate the lowest radiator in the house; you should find the system's drain valve here. Fix a length of hose to the drain valve and make it secure with a jubilee clip.
Beside this, how do you drain a central heating system without a drain valve?
The alternative way to draining the central heating system is, if you have no draining point, fit a draining point to the top of the radiator. When both radiator valves are in the off position. Once the draining point is in place, then attach the hosepipe and open draining valve including both radiator valves.
How often should I drain my boiler?
You should only drain it approximately once every year for maximum efficiency. If you drain it too often, you can introduce minerals that cause scale inside the boiler, as well as oxygen, which can eventually cause corrosion in the boiler.