heater

Turn on the heater; I'm cold.

The thug pumped two rounds from his heater into her.

Jones threw a heater under his chin.

Emmy went on a heater in Las Vegas and came back six thousand dollars richer.

It can be assumed that as the earlier kite shield transformed into the heater shape, there must have been versions in between the two styles. Indeed, in artwork of the Medieval period, shields are rarely present after 1450 and even then are quite small. The development of flattop heaters from larger kite shields is likely the result of increased fighting on horseback and the use of improved armor.