As of 2015, electric heaters can be purchased online from Walmart, Amazon, Bed Bath and Beyond, Sears and Home Depot. These companies sell different types of heaters including portable, ceramic and infrared.
Home Depot sells the most types of electric heaters: ceramic, infrared, fan-forced and radiant oil. A search can be refined by selecting one type of heater. Further refinements include, indoor and/or outdoor, brand, heated area capacity in cubic feet and wattage.
Sears' search function can be refined by, color, percent discount, local availability and price range, while Home Depot, Walmart, Sears and Bed Bath and Beyond offer online purchasing with local pickup.