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Old 10-29-2012, 10:49 AM   #11 (permalink)
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Warm up time is going to differ from engine to engine, environment to environment, etc. I don't think I've seen anyone else do testing besides MetroMPG.

http://ecomodder.com/forum/showthrea...-warm-817.html


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Old 10-29-2012, 12:55 PM   #12 (permalink)
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Now I use two 600w block heaters, they can thaw the engine to a reasonable degree in as little as 20 minutes.
Over on diesel place, back around 2006 or 2007 I experemented with a 220 volt, 2.4kw quick heater. It was in line with the heater core, its claim to fame was on a 20'F day it could start to deice wind sheild in less than 2 minutes on a cold start and the temperature gauge would start to show a reading at the "140'F" mark in under 5 minutes.
Since it was in line with the heater core the vehicle had to be running.
http://www.dieselplace.com/forum/sho...293&highlight=
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Old 12-11-2012, 06:53 PM   #13 (permalink)
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The instructions for the Kat's tank-style heaters say to not even start the engine with the thing turned on, to protect the heater. That's what I'm more afraid of than just driving off with the cord connected-- I'm afraid of accidentally wrecking the heater in the morning because I forgot. (The heater I don't actually have, but my '95 Previa is a good candidate.)
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Old 12-11-2012, 06:59 PM   #14 (permalink)
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Quote:
Originally Posted by AlaricD View Post
The instructions for the Kat's tank-style heaters say to not even start the engine with the thing turned on, to protect the heater. That's what I'm more afraid of than just driving off with the cord connected-- I'm afraid of accidentally wrecking the heater in the morning because I forgot. (The heater I don't actually have, but my '95 Previa is a good candidate.)
Same with my ZeroStart unit on my TDI.
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Old 12-11-2012, 07:13 PM   #15 (permalink)
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Darn, there's a "cartridge" style for my '01 Corolla, but not for the Previa. Sad, because the Previa (with the All-Trac) is more likely to not be garaged but does so well in the snow.
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Old 12-11-2012, 10:09 PM   #16 (permalink)
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Quote:
Originally Posted by AlaricD View Post
not even start the engine with the thing turned on, to protect the heater.
In what way would starting the engine hurt the heater?

The only thing that I'm really familiar with in terms of how to wreck heaters is to run a liquid heater with it dry. I know that electric home water heaters can be destroyed nearly instantly that way.

Am I missing something here?

(PS I just plugged in my big wall outlet timer for the winter to go to my truck block heater.)
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Old 12-11-2012, 11:26 PM   #17 (permalink)
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@bennelson
My zero start heater instructions said not to run engine while on because the risk of creating a bit of a pocket of air (?) just enough near element to burn it out. I did on accident for about 15 seconds before I realized it, no harm done from what I can tell. HTH
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Old 12-12-2012, 09:32 AM   #18 (permalink)
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There is no need to worry about running the Prius' engine with the block heater plugged in since the block heater isn't in any coolant. It is simply in a bored hole in the aluminum block.
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Old 12-13-2012, 12:05 PM   #19 (permalink)
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Quote:
Originally Posted by Daox View Post
There is no need to worry about running the Prius' engine with the block heater plugged in since the block heater isn't in any coolant. It is simply in a bored hole in the aluminum block.
Right-- it's the "cartridge" style, not the "frost plug" (or "freeze plug") style.

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