That's interesting. Looks like they're now recommending a higher wattage element than they used to put in. When I was writing my last reply the thought that RT-NY had passed my mind as well. I have a separate line running from the battery to the fridge. It doesn't go through the converter where the 12v fuses are. Instead there's a 15A breaker on that line. My 125w element draws a little over 10A. If the (A = W/V) formula is correct, that draw makes sense. A 170w element would draw c.14A, still under the breaker rating. My guess is that a 135w, drawing 11.25A, wouldn't tax the circuit much more than the original 125w. But I'm not a wiring expert by any means.