
Small compact units that heats 12x14 room with one window as primary heating source into the teens. That being said, I purchased 2 in November '19 ( Jan. 29, '20 ). Plugged them in and haven't turned them off except for a couple hundred hours. If anything I would say the gauge of the power cord should be larger. Cord gets very warm and gives me concern.

Natural Gas Heater: Mr. Heater Vent-Free 20,000 BTU Blue Flame - Multi-Size Option
35 Review

KopBeau 1500W Oscillating Space Heater - Fast Electric & Portable Room Heater W/ Thermostat, 4 Modes, 24H Timer, LED Display For Indoor Office Use
50 Review

1500W PTC Ceramic Electric Space Heater With 60° Oscillating Tower Fan, Thermostat & Overheat/Tip-Over Protection For Office Home Bathroom Large Room Indoor Use (32 Inch)
51 Review

Efficient And Convenient Large Room Heating With 1500W 4-Mode Electric Space Heater
36 Review

🥶 LG TC09GQR Split System Air Conditioner - White
11 Review

Senville AURA: Energy Star Mini Split Heat Pump W/ 9000 BTU & Alexa Compatibility
13 Review

Stay Cool With COMFYHOME 3-In-1 Portable Air Conditioner - Efficient Evaporative Air Cooler For Home And Office
11 Review

COMFYHOME 3 IN 1 Portable Evaporative Air Cooler - 60°Oscillation, 12H Timer & Remote, Windowless Room AC For Bedroom Home Office
11 Review