Alpha heater unit: $49.95 each (heats 350 square feet) 2 Alpha heater units: $47.46 each (heats 700 square feet) 3 Alpha heater units: $44.96 each (heats 1050 square feet) image 2 Final Thoughts Based on the analysis above, it should be clear that Alpha heater is a plug-in heater designed to heat a small room or apartment. The more units that are in place, the larger the coverage provided. What we found to be motivating about Alpha heater is its safety features. With portable heaters, individuals usually need to anticipate the risk of overheating and tip-over accidents. Both concerns are now history because Alpha heater has been designed to factor them in. But of course, it is imperative to maintain distance and refrain children and pets from reaching too close to it, as recommended by most providers. Another facet that we were naturally drawn to is its energy-efficient nature. As the idiom goes, Alpha heater kills two birds with one stone, i.e., heating up enough to promote comfort while keeping utility bills in check.