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Old 10-05-2020, 10:04 AM   #571 (permalink)
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Quote:
Originally Posted by minor4326 View Post
wouldn't it be just as easy and cheaper to put a timer on the heater and run it 2-4 hours before work?
Previously I had experimented with a block heater and the stock 1.0L engine, and found there was very little gain running the heater for more than 2 hours, and that it's overall diminishing the longer you run it.

I actually just purchased a cheap outlet timer from Amazon. This morning was the first time I used it, and I started the heater 1 hour before my normal departure time. I found that the coolant reached ~160F (basically lower end of full operating temperature) around the same time as it would normally just be hitting 120. And, that was with interior heat running.

If I were to guess, the break-even in electricity costs is likely sometime between 1 hour and 2 hours of heating.

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Old 10-05-2020, 10:09 AM   #572 (permalink)
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Quote:
Originally Posted by Piotrsko View Post
Not necessarily. Large current timers are about $70 USD, and 2-4 hours may not be enough time to warm things enough to buy economy
The current isn't too high. If I recall, standard Honda block heaters are 400w?

I might later add oil pan and transmission pad heaters.
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Old 10-06-2020, 09:53 AM   #573 (permalink)
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Thanks for the clarification. All the heaters I have used require special stuff rated for 20 amps or 2500 watts or they start fires.

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