Floor mounted heaters

Here is the heater setup I came up with for my SS. I used a couple of 5" 12v fans. They do around 190 cfm each. This was the strongest I could find like this.

The fans push air through a couple of power steering coolers with lines teed into to coolant lines. The heater lines have shut off valves so the hot coolant isn't there during summer driving.

I then covered this with some metal mesh from the hardware store. I cut, bent and secured using the straps from the steering coolers. Each fan is on a separate switch.

thanks for the link. Those should be an improvement. I have used these down to 42 degrees so far. When I first tried them out, I was driving around and mostly felt the seat heaters. I was kind of disappointed in the floor heaters. I put my hand down there and could feel warm air but it didn't seem to be warming my feet.....that was until I switched it off for comparison. It was a BIG difference! The stronger fan you suggested should push the air more into the footwell and away from the currents pulling air out of the SS. There is also an opening at top of speaker housing that should be closed off so it isn't blowing cool air across the fins but instead more of the warmer footwell air

I went over a ton of different options. There are several ways to obtain heaters in an SS. I went this route as it was the simpler and more inexpensive option. Another way that I seriously contemplated was using a small heater designed for hotrods mounted in the engine are and running ducting into the cabin area