More 33++ Toe Kick Heater Electric. Toe kick heaters, also known as kickspace heaters, serve as compact, affordable and unobtrusive heating solutions. Here is the shortlist of the best kickspace heaters available! A diverter tee may be needed to allow sufficient water flow to a kickspace heater that branched is off from the main. Electric heaters work by convection or radiant heat. Toe Kick Heater Electric - Types Of Home Electric Heaters An electric toe kick heater will be cheaper to install, but aren't as efficient as the hydronic versions.