English edit

Noun edit

head-bolt heater (plural head-bolt heaters)

  1. Alternative form of headbolt heater
    • 1948 January, “Here's News”, in Popular Mechanics, volume 89, number 1, page 98:
      Head-bolt heater makes motors start easily in sub-zero weather by warming the water in the block to driving temperature.
    • 2011, Gerald Anderson, Murder Under the Loon, →ISBN, page 61:
      Nevertheless, she professed genuine interest in the fact that his Oldsmobile always started now that he had put in a tank heater, which was so much more efficient than that old head-bolt heater system.
    • 2012, Peter Bowen, Specimen Song, →ISBN:
      He, like everyone else here, had a head-bolt heater plugged into the engine to keep it warm and some heat tape wrapped around the battery.