Can bottle warmer tap into defrost for power?
Administrator
Joined: Nov 1998
Posts: 71,116
From: Hell was full so they sent me to NJ
On a large power consumer like a bottle heater or fuel pump, you are generally better off running the correct, heavy gage wire directly from the positive terminal in the red box near the battery, including a fuse in the line, and connecting it through a relay.
If you were no longer using the rear window defroster, you could check the wiring size and relay capacity, disconnect the wiring from the defroster, and reconnect it to the bottle heater if it was the right size. Make sure you don't let anyone else turn on the "rear defroster"......
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Interesting idea.........
If you were no longer using the rear window defroster, you could check the wiring size and relay capacity, disconnect the wiring from the defroster, and reconnect it to the bottle heater if it was the right size. Make sure you don't let anyone else turn on the "rear defroster"......
.Interesting idea.........
Registered User
Joined: Feb 2003
Posts: 1,110
From: Naperville
Just run a wire from the positive terminal like injuneer said, all you have to do is run it threw the firewall(there already a hole behind the cpu to run wires threw) wire it to a switch and then just follow the rest of the directions the warmer came with.
Registered User
Joined: Apr 2002
Posts: 46
From: Goin down the track...
Actually, I have my bottle heater hooked up to the defroster switch. I simply disconnected the power wire from the defroster and ran it to my bottle heater. It works great and is quite safe IMO. The reason I say that is because the defroster has a timer on it, so after 12 (I think) minutes it automatically shuts off. Works great for me, and I've had no problems.
Registered User
Joined: Jan 2001
Posts: 511
From: Newark, DE
Originally posted by JustaLT1
Actually, I have my bottle heater hooked up to the defroster switch. I simply disconnected the power wire from the defroster and ran it to my bottle heater. It works great and is quite safe IMO. The reason I say that is because the defroster has a timer on it, so after 12 (I think) minutes it automatically shuts off. Works great for me, and I've had no problems.
Actually, I have my bottle heater hooked up to the defroster switch. I simply disconnected the power wire from the defroster and ran it to my bottle heater. It works great and is quite safe IMO. The reason I say that is because the defroster has a timer on it, so after 12 (I think) minutes it automatically shuts off. Works great for me, and I've had no problems.
If you look at the size of the wire on the defroster and compare it to what the heater kit is calling for; you can determine if it will be safe or not.
Ex: defroster wire is 16 gauge
heater wire needs 12 gauge
Smaller gauge means larger wire!
NOT good!
Just be careful !!!!
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