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Old 10-11-2013, 09:21 AM   #1
skullnbaja
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Default Engine Block Heater

I noticed on subarupartsforyou.com they have an engine block heater for $29. I was thinking of purchasing one since the single digit weather will be here soon, but I was wondering if anyone has one and their opinions on it. They also have a battery warmer which I think would be a good idea. Any one have experience with any of these items?
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Old 10-11-2013, 05:08 PM   #2
subeman90
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I had a block heater and I liked it. Worked great and after driving about a block and a half I would have good heat coming out of the ducts. If you are quick you can install it and not lose too much coolant but like I said you have to have a quick hand and make sure the coolant isn't hot when you do it
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Old 10-11-2013, 06:09 PM   #3
DentMagnet
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-10F/-23C is pretty cold but it is rarely reached.
http://www.engineeringtoolbox.com/us...ity-d_296.html

CCA specs won't help you here unless you can somehow extrapolate to batt temps this cold.
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Old 10-11-2013, 08:39 PM   #4
Flowmastered87GL
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I have one, but I park in a garage that never gets below 40 degrees so I have only used it a handful of times at work. It seems to help the engine heat up faster. If you park somewhere really cold I'd do it for sure.
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Old 10-11-2013, 10:47 PM   #5
Buck Rogers
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I've had one for about 6 years, works great!
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Old 10-11-2013, 11:40 PM   #6
hocrest
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Do it. I have the extension chord plugged into a timer that will turn it on about 3 hours before we leave for work.

You'll need a 14mm Allen head socket to remove the plug from the block.
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Old 10-12-2013, 07:45 PM   #7
Hawk296
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I also have the block heater. My garage is full of my toys so I park outside in the winter. It really helps. I have warm heat out of the vents before I am out of the neighborhood, the engine starts much easier and it sounds much happier when you first start up vs a cold engine.

I installed mine when I did the service so I already had the coolant drained, installed it, then refilled with fresh coolant.
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Old 10-26-2013, 03:04 AM   #8
Conquest-King
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I will definitely be installing one of these for the cold Montana winters.
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Old 10-31-2013, 11:12 PM   #9
Baja_Gernaut
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Just received my heater. I have a turbo model, do I have to remove any specific parts to install the plug?
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Old 11-01-2013, 09:43 AM   #10
Hawk296
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You just have to remove the skidplate to remove the large coolant plug on the bottom, left side of the block (next to the oilpan where the dipstick tube is) drain the coolant from the block and then install the heating element and route the cord to the front. Then re-fill coolant

Last edited by Hawk296; 11-01-2013 at 09:50 AM.
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Old 11-01-2013, 11:28 AM   #11
steven765
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IIRC it takes a 14mm hex head to remove the plug in the block. Depending on how much corrosion and thread locker is on it, might take a bit of torque to get moving.
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Old 11-03-2013, 03:08 PM   #12
Baja_Gernaut
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I have another 1000 miles for an oil change so it's not a bad idea install the block heater. I have to find a 50 foot extension coard to plug it in.
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Old 11-05-2013, 09:45 PM   #13
Flowmastered87GL
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Quote:
Originally Posted by Baja_Gernaut View Post
I have another 1000 miles for an oil change so it's not a bad idea install the block heater. I have to find a 50 foot extension coard to plug it in.
Make sure the cord is heavy duty enough to handle the current. I'm not an electrician so I don't know the minimum gauge you need, but I would avoid using the cheapest thing at Walmart for example.
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Old 11-07-2013, 10:52 AM   #14
steven765
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Minimum 14gauge with a max reach of 155 feet. Assuming 120v single phase AC home current. Adjust for local voltage.
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Old 12-18-2013, 08:52 AM   #15
UNDFighting Sioux
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Default Subaru Specialists- Your thoughts on this issue.

I had local Subaru dealer install a block heater on my 2013 WRX (base) the other day, simply because it helps with cold starts.
One thing to note here is I am very in tune how my car runs, sounds, ect. Now to my issue, after having the heater installed I noticed that the car was running hotter then it ever has since I bought it 6K miles ago.
I'm not talking much (maybe 5deg.) but enough to notice the needle on the temp. gauge is in a different position then it usually is at normal operating temp. The temp outside isn't warmer now then it was before. Why would this be? Why the sudden change?

The tech. admitted that he over filled the reservoir (the left on in the engine bay when facing the rear) I don't think this would hurt anything because any extra should be forced out into the over flow reservoir. I do now hove the lovely smell of burning antifreeze under the engine bay and inside. Should have done it myself but live and learn.
Thanks for the help
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