Air vent - A small usually manual valve that requires a key to permit air that has accumulated in the top of the radiator to be released into atmosphere.

Angled Radiator Valves - the flow and return pipework h […]

QUESTION: After using the “Easy heat guide for your room” on the home page of www.aelheating.com i now know the heat required for my room so how do i check that the radiator i have chosen will provide enough heat output. […]

If your radiator/s feel cold at the top and warm at the bottom it is likely that the problem is being caused by air that has been trapped in your radiator so you should be able to fix the problem by bleeding your radiator.

[…]

What heating controls should I have?As a minimum you should have a programmer (for controlling the times when you want heating)

• a wall thermostat (to sense the temperature and send a signal to the boiler to either prov […]

If some radiators in your heating system are cold and others hot they may need balancing.
Tool List: Radiator-bleeding key Lockshield valve adjuster or adjustable spanner Screwdriver Digital thermometer or multimeter wit […]

Thermostatic Radiator Valves (TRVs) sense the air temperature around the head and regulate the flow of water through the radiator which they are fitted to. They do not control the boiler.

The temperature on the head should […]

Thermostatic radiator valves with remote sensors are used when a radiator is fitted into a confined space or behind a grill or guard.

A standard TRV will give a false signal in a confined area because of the lack of air mov […]