Without more information, "lowering" a radiator can have two main interpretations: lowering it physically on the wall or lowering the temperature it emits. This response will address both.
1. Physically Lowering a Radiator on the Wall
This involves detaching the radiator and remounting it at a lower position. This is generally not recommended for DIY unless you have plumbing and home maintenance experience. Incorrectly disconnecting or reinstalling a radiator can lead to leaks and water damage. If you're not comfortable with plumbing, hire a qualified plumber.
Here's a general overview of the process, but remember safety first, and hire a professional if you are unsure:
Steps (General Outline - Use at Your Own Risk):
- Turn off the Heating System: Completely turn off your heating system and allow the radiator to cool down.
- Isolate the Radiator: Close both the radiator valves (usually on either side of the radiator). One is typically a thermostatic valve (TRV) to control temperature, and the other is a lockshield valve.
- Drain the Radiator: Carefully drain the water from the radiator. You'll need a radiator key and a container to catch the water. Connect a hose to the drain valve to direct the water.
- Disconnect the Radiator: Once drained, carefully disconnect the radiator from the valves.
- Remove Radiator from Wall: Radiators are typically hung on brackets. Lift the radiator up and off the brackets.
- Relocate Brackets: Measure and mark the desired new location for the brackets. Ensure they are level. Securely mount the brackets in the new location.
- Re-hang the Radiator: Carefully lift and re-hang the radiator onto the relocated brackets.
- Reconnect the Radiator: Reconnect the radiator to the valves.
- Refill and Bleed: Open the radiator valves and allow the radiator to refill with water. Bleed the radiator to release any trapped air using the radiator key.
- Check for Leaks: Thoroughly check all connections for leaks.
- Restart Heating System: Turn the heating system back on and monitor the radiator.
Important Considerations:
- Weight: Radiators can be heavy, so get help lifting and moving them.
- Valve Compatibility: Ensure your existing valves will still align correctly with the relocated radiator.
- Pipework: Moving the radiator significantly may require adjustments to the pipework, which is best left to a professional plumber.
- Wall Structure: Consider the wall's structure and ability to support the radiator's weight in the new location.
2. Lowering the Radiator's Temperature
Lowering the temperature a radiator emits is a much simpler task:
- Thermostatic Radiator Valve (TRV): Most radiators have a TRV. Turn the valve to a lower setting. These are usually numbered, with lower numbers representing lower temperatures.
- Central Heating System Thermostat: Adjust the central heating system's thermostat to a lower temperature. This will affect all radiators in the system.
- Balance Radiators: Ensure your radiators are properly balanced. This involves adjusting the lockshield valves to ensure even heat distribution throughout your home. If some radiators are too hot while others are cold, balancing can help regulate the temperature.
