What to look for
THERMOSTATIC SETTINGS AND THERMAL CUT-OUT PROTECTION
Allows control of the maximum desired temperature for your working environment, saving electricity and maintaining the ambient temperature. Cut-out protection is essential for ensuring the heater doesn’t overheat with prolonged use or if accidentally obstructed. Some will switch themselves back on once they have cooled sufficiently.
A small but significant detail. Heater casings and frames get hot with prolonged use which might allow the main body to slip from its set angle. If this happens, the stops prevent the heater pointing directly up or down at a surface it might ignite or become overheated by.
A typical energy tariff for domestic electricity is in the region of 17 pence per kilowatt hour. Your provider or latest bill will provide this information. A heater producing 3 kw per hour for eight hours would cost £1.36 to run for that length of time. It’s not worth eight hours of being cold to save £1.36.