Thanks for all the info, I feel much better about carrying the canister in my car. This is my daily driver/BOV, it is an 06 Scion xB. I do know where the catalytic converter is, I keep my bag in the very back behind the back seat on the floor. The back windows have been tinted, over the factory tint. It seems to stay pretty cool back there.

I really like this car as a BOV. It gets very good gas mileage and is big enough to sleep in. I can haul just about everything I need. I was thinking that if there is a problem with heat inside I could easily mount a box underneath and keep the canister there. I may do that anyway.

Once again, Thanks for the info..
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LIFE is not a journey to the grave with the intention of arriving safely in an pretty and well preserved body but, rather to skid in broadside, totally worn out and proclaming "WOW, WHAT A RIDE!"