A person who studies the origin of the words and its meaning is called an etymologist. Etymology is a branch of linguistics. I think all these are terms are named in English language, in every developed language there is a different term for each studies.
The wisdom of using an electric heater depends on the per kilowatt cost in your region. 1  If your heater has a 1000 watt rating and your cost of electricity is $0.15/Kwh your cost to operate for one hour would be $0.15. 2  If the element is activated 10 hours out of every 24 hours your cost per day would be $1.50.
Equipment Costs. The average price for a new gas furnace ranges from around $2300 to install depending on manufacturer. The cost of a new electric furnace is $1,200 on average to install. Electric space heaters can be found for much less at most home improvement stores. While the upfront costs of electric heating may seem lower than those associated with gas heating, operating costs for gas heaters are often much lower than those associated with electric heat.