Does anyone have any experience with those portable interior cab heaters that plug into the lighter? My 1992 F150 work truck has lost its heat and its going to cost $400 to do all thats needed to get it to work again. Its not just the thermostat. I just put a new tranny in it so trying not to spend anymore on this oldie but goodie.
I see many reasonably priced 12V heaters that plug into the lighter and wondered if anyone has ever tried to use them? I just need 'some' warmth on my hands/feet. I am a contractor and the heat has not worked well for two years but usually I work close to home so its not been an issue but its gotten very cold here in Northern Virginia all of a sudden and my work is taking me an hour away and I am freezing!
Check that link I gave that other poster with no heat and make your own. Those
ones from the parts stores don't last very long especially if they get a bit of moisture
or get left on the floor!!
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Thanks but that solution does not look safe to me but very creative. Those are good tips so I would never leave a portable heater on the floor or let moisture get to it. I saw some reviews that said they did not really work that well but for less than $30 it might be worth a shot. I am not looking for a lot of heat since I am dressed very warmly but my hands and feet are freezing.
I have no input on the newer plug in heaters but, in 94-95 I had a 76 F-100 with no heat. I used one of the plug in type heaters so that I could defrost the windows more than anything. While it certainly didn't make it warm in the truck it did take off the chill of a PA winter. I do remember after awhile I had to smack it to free up the fan as it seemed to warp but it did what I had expected it to.
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electric heaters plugged in to the lighter plug on a vehicle are as worthless as the super magic pill you drop in water to make your own gasoline.
Fix your heater, at worst its R&R the heater core.
I have to agree. You can't pull enough current through the lighter circuit to generate enough heat to make a difference on a cold day. Most vehicle heaters are in the 15,000 BTU range. A 12 volt heater at 20 amps is about 2000 BTU if I did the math right in my head. Kinda like a fart in a windstorm on a cold day.
If you rely on that truck for your living, $400 is short money to keep it and you reliable. Remember, that's just a bit over a single new truck payment.
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The heater core has to be replaced but things are so bad that there is flushing that has to be done and then there is the labor charge. I work on my truck for many things but I feel this is best left to the dealer. They are very good to me and always give me a break on the labor and parts due to being such a long time customer.
Norman
Last edited by tbenton : 12-13-2007 at 08:31 AM.
Reason: forgot to sign it
Actually the little ceramic heater I got is enough to warm my hands/feet and take care of the windshield. when I put it on the dash. Its not the hottest in the world but I wear so many layers to work (I do interior trim in new homes) that I just need to take the chill off.
Can you tell me how much wattage you can use in a lighter? This heater I got for him has a switch for 150 or 350 watts but no documentation came with it. Norman says the 350 would be too much 'pull'. I questioned why they would put the 350 watt option on there? The heater is designed for car/truck cabs. Thanks
don't waste your money with a dealer for a heater core change.
open and empty the glove box. remove the box door cable, and unscrew the box door. remove the box tray. look in and you will see i think it is 6 screws. remove those screws, and the access panel.
open the hood. loosen the heater hose clamps where the hoses go into the firewall. remove the hoses and hold them up into the spring. .
go back inside the truck and remove the heater core.
put the new core in, screw the panel back on. put the glove box back together.
go outside and put the heater hoses back on, and top off the radiator.
if you do it rite, you will only need to add about 1 quart of coolant. the total time to remove and replace a heater core is no more than 1/2 hour for someone that does not know what they are doing. .
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