energy-efficient heater best sellers

#1 12000BTU Mini Split Air COSTWAY 12000BTU Mini Split Air Conditioner& Heater, 20 SEER2 115V Wall-Mounted Ductless AC Unit Cools Rooms up to 750 Sq. Ft, Energy Efficient Inverter AC with Heat Pump (Blast Series)

$539.99 on Amazon

#2 12000BTU Mini Split Air COSTWAY 12000BTU Mini Split Air Conditioner & Heater, 17 SEER2 208-230V Wall-Mounted Ductless AC Unit Cools Rooms up to 750 Sq. Ft, Energy Efficient Inverter AC w/Heat Pump(Blast Series)

$499.99 on Amazon

#3 Oil Filled Radiator Heater PELONIS Oil Filled Radiator Heater for indoor use Large Room Safe with Thermostat, 1500W Energy Efficient Quiet Space Heater, 3 Heat Settings & 8H Timer, Overheat & Tip-Over, Black

$66.58 on Amazon

#4 Champagne Oil Filled PELONIS Champagne Oil Filled Radiator Heater with Remote and Thermostat, 5 Temperature Settings for indoor use Large Room, Energy Efficient Electric Space heater with Safety Features

$90 on Amazon

#5 23” Oscillating Ceramic PELONIS 23” Oscillating Ceramic Tower Space Heater with Remote & Thermostat, Electric Energy Efficient Floor Heater for Indoor Use Large Room Safe with Timer, ECO Mode, 1500W, White

$69.99 on Amazon

#6 Electric Space Heater Portable QQT Electric Space Heater,Portable Energy Efficient Space Heaters for Indoor Use,Two-Speed Portable Heater Fan for Office with Adjustable,Overheating Protection,Dumping Shutdown (White)

$25.99 on Amazon

#7 DELLA 12000 BTU Wifi DELLA 12000 BTU Wifi Enabled 17 SEER Cools Up to 550 Sq.Ft 208-230V Energy Efficient Mini Split Air Conditioner & Heater Ductless Inverter System, with 1 Ton Heat Pump (JA Series)

$619.96 on Walmart

#8 Dreo Space Heaters for Dreo Space Heaters for Inside, Portable Electric Heater for Home with Thermostat, 1-12H Timer, Eco Mode and Fan Mode, 1500W PTC Ceramic Fast Safety Energy Efficient Heater for Office Bedroom, Silver

$33.99 on Walmart

#9 Space Heater 500W Energy GAIATOP Space Heater, 500W Energy Efficient for Indoor Use, PTC Ceramic Fast Heating Electric Desk Heater, Overheating & 45°Tip-Over Protection Portable Mini Heater for Office Home Black

$19.99 on Amazon

#10 18000BTU Mini Split Air COSTWAY 18000BTU Mini Split Air Conditioner& Heater,19 SEER2 208-230V Wall-Mounted Ductless AC Unit Cools Rooms up to 1250 Sq. Ft, Energy Efficient Inverter AC w/Heat Pump & Installation Kit

$679.99 on Amazon

#11 LifePlus Infrared Space LifePlus Infrared Space Heaters for Home, Portable Wood Electric Quartz Heater with Remote Control Thermostat Energy Efficient for Inside Use

$125.99 on Walmart

#12 FC824P Ventless Propane Rinnai FC824P Ventless Propane Heater, Energy-Efficient Space Heater with Programmable Thermostat

$862.09 on Amazon

#13 Modern 70" Electric Fireplace BELLEZE Modern 70" Electric Fireplace Heater Mantel TV Stand & Media Entertainment Center for TVs up to 68" with Energy-Efficient Heater With Sound and Side Book Shelves - Lenore (White)

$469.99 on Amazon

#14 Kerosene Forced Air Heater VEVOR Kerosene Forced Air Heater, 215000 BTU Portable Torpedo Diesel Space Heater with Thermostat, 13.2 Gallon Tank Energy-Efficient heavy-duty Heater, for Indoor Outdoor Use Workshop Industry

$308.99 on Amazon

#15 Plug in Electric Panel Envi Plug-in Electric Panel Wall Heaters for Indoor Use, Energy Efficient 24/7 Heating w/Safety Sensor Protection, Patented Quiet Fan-less Design, Easy 2-Min Install, Space Heater, Made in USA

$189.95 on Amazon

#16 🔥 HHF360V 360 Degree Surround Honeywell HHF360V 360 Degree Surround Fan Forced Heater with Surround Heat Output Charcoal Grey Energy Efficient Portable Heater with Adjustable Thermostat & 2 Heat Settings, Small

$34.98 on Amazon

#17 Portable Electric Space Sunkos Portable Electric Space Heater - Safe and Quiet Heater for Indoor, Large Room, Office, Bedroom, and Garage Use, Advanced Far-Infrared Heat with Thermostat, No Fan & Light, Energy Efficient

$299.99 on Amazon

#18 Space Heater 1000W Energy GAIATOP Space Heater, 1000W Energy Efficient Space Heater for Indoor Use, 3 Mode PTC Fast Heating Ceramic Electric Heater, Overheating & 45°Tip-Over Protection Portable Heater for Office Home White

$32.99 on Amazon

#19 LifePlus Electric Oil LifePlus Electric Oil Filled Radiator Portable Space Heaters for Home Thermostat Energy Efficient Overheat Safety, 700W

$45.99 on Walmart

#20 18000 BTU Wifi Enabled COSTWAY 18000 BTU Wifi Enabled Mini Split Air Conditioner & Heater, 21 SEER2 208-230V Inverter AC Unit Cools up to 1250 Sq. Ft., Energy Efficient (Black, 18000BTU, 208-230V, 21 SEER2-WIFI)

$679.99 on Amazon