1 On average, a baseboard heater can cost $40 to $200 per unit up to 6 feet measure at 120 or more volts. 2  Some rooms may require more than one heater. 3  Typical baseboard heaters come in 120, 240, 500 and 1,000 volts. 4  Most measure at 4 or 6 feet. 5  A 120 volt heater will cost $40 to $120. Some rooms may require more than one heater. 2  Typical baseboard heaters come in 120, 240, 500 and 1,000 volts. 3  Most measure at 4 or 6 feet. 4  A 120 volt heater will cost $40 to $120.
Most Active Volcanos in the USA. Alaska Augustine Volcano Augustine volcano is one of the most active volcanoes in Cook Inlet, having a symmetrical cone rising 1,254 meters above the sea level. This volcano has erupted in 1812, 1883, 1935, 1963-64, 1976 and 1986, and surprisingly, the intervals between these eruptions have reduced from 70 to 10 years.
The Most Dangerous Volcanoes in the U.S. The most dangerous volcanoes in the U.S. are all composite volcanoes along the American Ring of Fire on the U.S. West Coast and Alaska, except for the two shield volcanoes on the Big Island of Hawaii.Mauna Loa and Kilauea are ranked #8 and #1 respectively.ome of the worldâs largest volcanoes are shield volcanoes, including two of the worldâs most active volcanoes: Mauna Loa and Kilauea Volcanoes on the Big Island of Hawaii. (Photo bellow by Priit Vesilind, National Geographic).