Qmark Electric baseboard heaters and Cadet Electric baseboard heaters contain a sheathed electric heating element completely immersed in a heat transfer liquid and sealed in a heater-length copper tube. This maximizes the volume of heat storage fluid to prolong the thermal constant of the entire heater.
The strongest animal on Earth is the blue whale. The blue whale is also the largest creature in the entire world.
That the wolverine is, pound-for-pound, the toughest animal in America, if not the world. And, to be fair, these little guys (actually the largest land-dwelling weasels) are ferocious. Despite weighing just 20 to 50 pounds, wolverines have been known to go after deer and even caribou if they're hungry enough.