Best Most Efficient Space Heater

Dreo Electric Heater, 1500W Energy Efficient Space Silent Room Heater, Portable Ceramic Fan Heaters, Thermostat 3 Modes 12H Timer, Overheat & Tip Over Protection, for Bedroom, Atom 316, Gold

Warmlite WL44004 Portable Flat Fan Heater with 2 Heat Settings and Overheat Protection, 2000W, White

Dreo Space Heater, 70° Oscillating Electric PTC Ceramic Heater with Thermostat, Remote Control, 3-Mode 3-Speed, 1-12H Timer, Overheating & Tip-Over Protection, Energy-Saving-ECO-Mode, Atom One

Dreo 16 Inch Space Heater, 1800W Silent Ceramic Electric Heater Low Energy, 3-Mode 3-Speed, Overheating & Tip-Over Protection, 12H Timer, 70° Oscillation, for Home, Solaris Slim H3

Zanussi 2300W Oil Filled Radiator 11 Fin Portable Electric Heater & Remote Control, White, Display & 24 Hour Timer, Adjustable Thermostat, 3 Heat Settings, Safety Cut-off, 20 m sq Room Size, ZOFR5005

Pro Breeze 2000W Mini Ceramic Fan Heater - 3 Heat Settings & Fan Only Mode with Built-in Overheat and Tip Over Protection, Electric Heater for Home, Office and Bedroom

Pro Breeze 2000W Mini Ceramic Fan Heater - 3 Heat Settings & Fan Only Mode with Built-in Overheat and Tip Over Protection, Electric Heater for Home, Office and Bedroom (White)

Dreo 16 Inch Electric Heater, 1800W Energy Efficient Space Heaters with Thermostat, 70° Oscillating Remote Control 3-Mode Tip-over & Overheat Protection, Silent Ceramic Fan Heater for Home, Solaris H2

De'Longhi HSX4324E.WH, 2,4KW Thermo convector heater with digital thermostat, LED display, 3 power levels,24h Timer White

NETTA Ceramic Fan Heater 2000W - 3 Heat Settings & Thermostat with Tip Over & Overheat Protection, Portable and Compact Electric Space Heater - White