70 mustang heater box, can i get anything smaller

[1970 TT Rustang]

Hi iam in process of rewiring my car and i need as much room under the dash as possible. My heater box in my 70 mustang is huge. Is there repoduction units out there that are smaller. or are there other options?
Thanks

[Rod]

I used the 3 speed mojave heater from summit, here's the link to it

http://www.summitracing.com/parts/SUM-991102-1/

https://static1.pt-content.com/images/pt/2011/02/GEDC0986-1.jpg

and then put the 3 speed switch where my lighter goes above my ignition switch

https://static1.pt-content.com/images/pt/2010/08/GEDC1020-1.jpg

[1970 TT Rustang]

Cool how has it been working? does it come with mounting brackets or did you fab up your own?

[Rod]

works great as you see I ducted one side to the defroster and the other is towards the floor, and it allowed me to smooth the fire wall and still have a heater/defroster, it came with 2 brackets for mounting and if the core ever has a problem its way, way, way easier to change out !!

[1970 TT Rustang]

Wow not bad thanks