Supplemental Heater Option
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Senior User
Joined: Jul 2005
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Supplemental Heater Option
My 08 6.4 Finally came in and I took delivery today. I ordered the supplemental cab heater on my truck but i can't find it in the truck and I can't find a switch to turn it on/off. I looked in the owners manual and couldn't find anything on the supp heater system. Does anyone else have this option and can you tell me how this works ?? Thanks !!!!
Elder User
Joined: Dec 2005
Posts: 577
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From: Lebanon TN
Its automatic and equivalent to having an electric heater in the heating system. It certainly takes the chill out of the air and defrosts the windshield while the engine is cold. The computer controls it. As your truck engine heats up, it switches over to the radiator coolent to heat.
Tuned
Joined: Mar 2004
Posts: 380
Likes: 12
From: somewhere in Colorado
How do you know if you have that option? I didn't think mine did but it seems to warm up relatively quick for a diesel. After just two or three minutes is blowing, well, luke warm. But at least it's not COLD. So how can I tell if my 08 has it?
Elder User
Joined: Feb 2004
Posts: 576
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From: Aromas, CA
boulderbronco, u dont, it would be hot in 30 secconds if u did. dont feel bad, i dont have it either!
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Posting Guru
Joined: May 2006
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From: MACON, GA
Yep, if you have it, nice and warm in 30 seconds at 10 degrees outside. As stated above the option does appear on the window sticker. Further, if you do not have the window sticker you can get a build sheet from FORD customer service. Both documents list my VIN with "Supplemental Air Heater", and the build sheet lists my build date as 10.22.2007. It takes several weeks to get the build sheet. I followed the process which was shown in this forum.
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Laughing Gas
Joined: Oct 2007
Posts: 990
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From: North Pole Alaska
It works using the transmission fluid. The transmission heats up way faster than the engine does. That is the fluid that is heating your truck while the engine warms up. There are no operator controls.
Senior User
Joined: Jul 2003
Posts: 173
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From: central arkansas
Where did you get that? Its an electric grid heater..
Originally Posted by mnmwhit
It works using the transmission fluid. The transmission heats up way faster than the engine does. That is the fluid that is heating your truck while the engine warms up. There are no operator controls.
Freshman User
Joined: Jul 2005
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Originally Posted by mnmwhit
It works using the transmission fluid. The transmission heats up way faster than the engine does. That is the fluid that is heating your truck while the engine warms up. There are no operator controls.
Never heard of that.. is this an option for ALASKA? So the transmission fluild warms the coolant to warm the cab... Doesn't sound logical.
Senior User
Joined: Aug 2006
Posts: 291
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If you have it you will know. My truck temp is still cold and my cab is nice and toasty. I drive about 10 mins to work each morning. I do live in florida so I do not use it that often.
The heated seats work great too but I wish there was a low setting. I have to turn it off after about 5 mins.
The heated seats work great too but I wish there was a low setting. I have to turn it off after about 5 mins.
Senior User
Joined: Sep 2001
Posts: 282
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From: East Wenatchee, WA
The supplemental heater is one of the options when purchasing the vehicle. It is electrical and can only be purchased with the heavy duty alternator option (200 amp instead of 135 amp I think) it blows warm air in about 30 seconds instead of several minutes. If you have one there will be an auxillary large wire running from the passenger side battery with a built in 150 amp fusible link inline.
Senior User
Joined: Oct 2007
Posts: 159
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From: Poconos
The Ford advertisement says that it increases up to 18 degrees F the temperature of the heater. So if its 10 degrees out, it will blow 28 degrees - not toasty warm. And since it says 'up to' I assume they mean 18 degrees at the lowest fan setting, with less at higher settings.
Senior User
Joined: Sep 2001
Posts: 282
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From: East Wenatchee, WA
I don't know about everyone else, but when it was 30 degrees out within 30 seconds the heater is blowing warm air (would guess at least 80) and is way better than my 7.3 diesel that took at least 5 minutes to blow that warm. I guess I could put a thermometer in my vent to tell you for sure. Well worth the extra $325 for a $50,000 dollar truck, $250 for the heater option and $75 for the heavy duty alternator.
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