Gather your tools and identify which radiators need bleeding
To handle the job, you’ll need a couple of common tools. We’ve listed what you’ll need to bleed your radiator system below.
- A radiator key to open the bleeding valves of your radiators. This is used to open the radiator vent valve. These are purchasable from hardware stores or from online retailers.
- A bucket & cloth. Your radiator will leak water when the air has fully escaped, so you will want to catch it before it wets your floor.
- A pair of gloves. These will help protect your hands from any hot pipes or surfaces.
- To assess whether you need to bleed a radiator or not, start by turning on your heating system and allowing it to start warming up your radiators. While they’re warming, listen for any clanking or rumbling sounds - this could very well be pockets of air rushing through your heating system. They will eventually settle once the system heats up, so pay a visit to each radiator in turn to get a quick understanding.
Once they’ve sufficiently heated up, you need to feel the surface for any changes in temperature, particularly towards the top of the radiator where the air is likely to end up lodged. If it feels cooler than other parts, you know there is an air pocket there. Please take extra care here as the radiators will be hot, so be sure to use gloves.