1. Welcome to PlowSite. Notice a fresh look and new features? It’s now easier to share photos and videos, find popular topics fast, and enjoy expanded user profiles. If you have any questions, click HELP at the top or bottom of any page, or send an email to help@plowsite.com. We welcome your feedback.

    Dismiss Notice

2005 Duramax coolant heater

Discussion in 'Chevy Trucks' started by 906Yooper, Oct 9, 2016.

  1. 906Yooper

    906Yooper Junior Member
    Messages: 9

    I've finally got electricity out where I park my truck, so now I want to use the coolant heater on a timer for minus zero starts. The question: what timer amperage am I looking for? I've searched and can't seem to find the amp draw for the heater. Probably looking in the wrong place, so do you guys know?

    Jim Kovar
    Vulcan, Mi
     
  2. kimber750

    kimber750 PlowSite Veteran
    Messages: 3,695

    Should be around 850 watts so roughly 7 amps.
     
  3. Randall Ave

    Randall Ave 2000 Club Member
    Messages: 2,033

    What brand block heater? You can always call the manufacturer. Should have come with instructions and that information
     
  4. 906Yooper

    906Yooper Junior Member
    Messages: 9

    Thank you , Kimber.


    What brand? Whatever GMC- Chevy put on their dmax pickups.
     
  5. kimber750

    kimber750 PlowSite Veteran
    Messages: 3,695

    Randall isn't used to our little toy trucks. ;)
     
  6. Randall Ave

    Randall Ave 2000 Club Member
    Messages: 2,033

    His heater is probably made by a company like Zero start. Or the like.
     
  7. leolkfrm

    leolkfrm PlowSite.com Addict
    Messages: 1,434

    i like the 20 amp hd too many of the lighter ones are made for light circuits
     
  8. Randall Ave

    Randall Ave 2000 Club Member
    Messages: 2,033

    We'd put the 2000 watt tank heaters on the old 855s, you could hear them cooking. They were 855 cubic inch 6 cylinders.