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Old 11-21-2023, 05:50 AM   #8 (permalink)
Gasoline Fumes
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Location: New York State
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CRXFi - '88 Honda CRX XFi

Insight 256 - '00 Honda Insight
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Quote:
Originally Posted by Isaac Zachary View Post
I need to do some testing, but just from experience:
  • Without the block heater connected the engine will be some 10 degrees or so warmer than ambient in the morning. If it's -30 °F the engine will be like -20 °F. It takes several minutes for the heater to start putting out any heat.
  • With the block heater connected all night long the engine will be some 30 to 40 °F warmer than ambient. So on a -30 °F day it's not that much better than 0 °F still. It still takes several minutes for the heater to start putting out any heat.

I do have a 1,500W circulating tank block heater that I want to install. The problem is finding places to attach it. I either need a 120V pump that's connected to the same plug as the heater so coolant always flows through it when it's on, or I need to modify the thermostat housing for a place for coolant to flow out towards the circulating heater, with a T up on the upper radiator hose.
-30°F is a lot colder than what I experience in NY! I would use my block heater at temps like that! Below 0°F is rare here.
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