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 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

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

CUQOO Powerful 2KW Fan Heater with 2 Heat settings & Cool Function - Upright Electric Quiet Space Heater for Home with Variable Thermostat, Low Energy Usage

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)

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

PELONIS Electric Heater 2000W Fan Heater with Remote Control, Space Heater with 24H Timer & 75° Oscillation, Adjustable Thermostat and Tip-Over & Overheat Protection, Heaters for Home Energy Efficient

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