May 25, 2022 · The Most Energy Efficient Space Heaters You Can Buy in 2022. 2. Lasko 5409 Ceramic Portable Space Heater – Editor’s Pick. 3. Vornado MVH – Vortex Heater – Runner Up. 4. DeLonghi – Best Panel Heater – HCX9115E “Wall or Floor Mount”. 5. Premium Pick: Dr. Infrared – Quartz Heater with Humidifier.