how to get heat back in my ranger?

about two months ago me and some friends put juice on my 03 ranger.the fan box and all that other stuff on the firewall on the passenger side had to go so now i need to know other options on geting my heat back cause i got a 6year old and don't want him to suffer.somebody was telling me about something from a box style s-10 but i need some imput before winter gets here.

jegs.com they sell visable under dash heater boxes.. its not a 'shop' type of setup, but it keeps you warm.

do they look easy to put in and remove in case i want to show the truck?

ya they just look like space heaters, but are for your race cars, so they'll work in your truck.

hell yea, and if you need defrost, set it on the dash

i'll check it out,thanks

somebody also told me to find one that plugs into the cigarette light.thats not a bad idea.

those are crap, smell like a burning hair dryer. get a summit cat. and look ,htey have a under dash heater for 160 bux i think.