energy-saving heater best sellers

#1 🔥 Comfort Zone Electric Comfort Zone Electric Desktop Space Heater, Energy Saving Mode, Portable, Adjustable Thermostat, Tip-Over & Overheat Protection, Black

$28.99 on Walmart

#2 Electric Tankless Water thermomate Electric Tankless Water Heater, 11kW 208~240 Volt, On Demand Instant Hot Water Heater, Self Modulating Energy Saving, Save Space, 2.15GPM at 35°F Rise

$229.99 on Amazon

#3 Bird Bath Heater for EDDHOMES Bird Bath Heater for Outdoors in Winter, Pond De-icer 80 Watts Birdbath Deicer Water Heater Durable Birdbath Heater for Winter with Aluminum Base Waterproof & Thermostatically Controlled Saving Energy

$9.99 on Amazon

#4 Oil filled Radiator Heater De'Longhi Oil filled Radiator Heater, 1500W Electric Space Heater for indoor use, portable room heater, Energy Saving, full room like office and bedroom with safety features, EW7707CM

$99.95 on Amazon

#5 Electric Tankless Water Airthereal Electric Tankless Water Heater 18kW, 240Volts - Endless On-Demand Hot Water - Self Modulates to Save Energy Use - Small Enough to Install Anywhere - for 2 Showers, Evening Tide series

$289.99 on Amazon

#6 Dragon Digital Oil Filled De'Longhi Dragon Digital Oil Filled Radiator Heater, 1500W Electric Space Heater for indoor use, programmable timer, Energy Saving, full room heater with safety features TRD40615E

$149.98 on Amazon

#7 24000btu Mini Split Air TABU 24000btu Mini Split Air Conditioner&heater With Inverter, 19 Seer2 Wall-mounted Ductless Ac With Heat Pump, 230v 19 Seer2 Energy Saving, Work With Alexa,cover Rooms Up To 1500 Sq.ft

$774.93 on Wayfair

#8 18000btu Mini Split Air TABU 18000btu Mini Split Air Conditioner&heater With Inverter, 19 Seer2 Wall-mounted Ductless Ac With Heat Pump, 230v Energy Saving, Work With Alexa,cover Rooms Up To 1250 Sq.ft

$609.99 on Wayfair

#9 Bird Bath Heater for MEWTOGO Bird Bath Heater for Outdoors in Winter - 48 W Submersible Birdbath Deicer with Thermostatic Control and 4.6 Ft Long Power Cord, Energy Saving for Garden Yard Patio and Lawn

$13.99 on Amazon

#10 🔥 Portable Space Heater Amazon Basics Portable Space Heater, With Remote Control, Adjustable Thermostat, LED display, Energy-Saving ECO-Smart Setting, 1500W, Black, 11.4"D x 14.5"W x 14.7"H

$57.39 on Amazon

#11 🔥 🆕 Aquarium Heater 300W/500W/800W azw Aquarium Heater 300W/500W/800W, Fish Tank Heater with Digital LED Controller, Frequency Conversion Energy Saving, IPS Anti-Boiling Fish, Multiple Intelligent Protection for Freshwater/Saltwater

$46.99 on Amazon

#12 12000 BTU Mini Split TABU 12000 BTU Mini Split Air Conditioner&heater With Inverter, 19 Seer2 Wall-mounted Ductless Ac With Heat Pump, 115v Energy Saving, Work With Alexa,cover Rooms Up To 750 Sq.ft

$499.99 on Wayfair

#13 Car Fan Air Heater 100W YOSOO Car Fan Air Heater, 100W 12V Energy Saving PTC Car Fan Air Heater Constant Temperature Heating Heaters

$12.92 on Amazon

#14 Submersible Aquarium TINTOR Submersible Aquarium Heater, 800W/1200W fish tank heater, double tube heating, rapid heating and energy saving, LED digital temperature controller, suitable for sea water and fresh water(1200W)

$76.88 on Amazon

#15 CZ442E Personal Energy Comfort Zone CZ442E Personal Energy Save Ceramic Heater - 1500W Portable with Adjustable Thermostat, Tip-Over Switch & Overheat Protection, Black

$29.95 on Amazon

#16 New Aquarium Heater 2023 AQQA New Aquarium Heater,2023 Energy Saving Fish Tank Heater,Over-Temperature Protection and Automatic Power Off When Leaving Water for Saltwater and Freshwater (500W)

$19.99 on Amazon

#17 Aquarium Heater 800W BUINTO Aquarium Heater, 800W, 1200W Bold Double Quartz Tube Heater, Fast Heating, high-Definition Digital Touch Controller, Energy Saving. (Applicable to Fresh Water and sea Water) (1200W)

$72.88 on Amazon

#18 Bird Bath Heater for EDDHOMES Bird Bath Heater for Outdoors in Winter, Pond De-icer 80 Watts Birdbath Deicer Water Heater Durable Birdbath Heater for Winter with Aluminum Base Waterproof & Thermostatically Controlled Saving Energy

$9.99 on Amazon

#19 23000BTU MINI Split Air SIMOE 23000BTU MINI Split Air Conditioner and Heater, Saving Energy Ductless AC Unit with 2 Ton Heat Pump, Ductless Inverter System and Installation Kit Rooms up to 1500 Sq.Ft, 208-230V, 18.5 SEER2

$1059.99 on Amazon

#20 Space Heater 1500W 3S Voweek Space Heater, 1500W 3S Ceramic Heating Portable Heater for Indoor Use with Thermostat, Energy Saving, Quiet Operation, 90° Oscillating, Remote, 12H Timer Electric Heater for Large Room

$59.99 on Amazon