A great quality cold heat glow plug from Enya. This plug is so cool , it's almost freezing ! This plug has found it's way in to high revving ducted fan engines and high nitro applications. Where other plugs just can't stand the heat !
Glow plugs are considered to be consumables - But by using a low voltage to start ( under 1.5 volts) and not burning the plug dry, you prolong the life of your glow plug. It is also worth washing out a new engine after running in to prevent small particles shorting the plug and destroying it. Blowing plugs on new engines is less common now a days, but is still something that can happen.