heated screen

[boffer8]

why not just wire into the circuit of the rear screen?

[MattBrown]

why not just wire into the circuit of the rear screen?

will be pulling too much current fella!

[sparkie1401]

as Benn said

im doing it that way aswell

and yes too much current if used on same switch as rear window, windscreen man told me that slso

[Mark]

and yes too much current if used on same switch as rear window, windscreen man told me that slso

What about if you don't have a heated rear screen, do you reakon it would be ok then?

[Adam]

You use relays. a, for the timing, b, to keep the heat out of the dash, and c, as you can use a tiny switch in the dash, no a hoofing big thing.

Oh really?

I KNOW that on some Fords with heated windscreens, they are run through TWO 30amp fuses.... (one per side of the screen)

I have no Haynes here but can someone have a look what fuse protects the rear window heater circuit? Id be very suprised if it was less than 30A!

Oh and Landrover heated screen kits come with a 70amp relay Ok, it aint a nova but that gives you some idea of the amount of power they use

[Benn]

I'll go with Ad on this...

[Jack]

Heated FW uses a LOT of power. I know this. I have one. My revs - on the V6 - drop when I turn it on.

Mine had two heated tracks on it, four wires coming off. I think we wired in two relays for each track, but from the same switch. Its a big light up one on the dash so I won't forget to turn it off

[Adam]

Yep they usually do have two circuits(one per half of the window)

[sparkie1401]

What about if you don't have a heated rear screen, do you reakon it would be ok then?

then should be fine as it one switch for one window

but its a "ON/OFF" switch so u need to rememeber to turn her off

[Benn]

Heated FW uses a LOT of power. I know this. I have one. My revs - on the V6 - drop when I turn it on.

Mine does that when the fans come on.