As of March 2015, baseboard heaters range in price from approximately $25 to $200 each. Higher priced specialty models are also available, which include options such as programmable thermostats and hydronics.
Amazon.com offers several inexpensive baseboard heaters for less than $30, that provide between 1,700 and 2,560 BTUs. On the higher-priced side, Amazon.com offers a direct vent propane gas baseboard heater for $1,040, which offers 5,000 BTUs. The Home Depot has several mid-priced baseboard heaters between $100 and $150, including convection as well as electric models. Its least expensive models are around $27, and come in 24-inch and 30-inch sizes.