2 Litre Saloon heater

[Norman]

Were any of these cars fitted with a heater from new? And if so, does any member own a car with an original installation?
I am buying a 2 Litre Saloon which has never had a heater, but as I live in Scotland I think I would be glad of one! I wouldn't want to fit anything which spoiled originality. so if I could get photos and specs. or maybe even take a look at the installation, that would be very helpful.

[amturri]

I have a heater - original - has a little switch that turns it on and off but doesn't seem to work. I assume it's electric. Maybe it's not hooked up. Not sure yet. It's basically a square box that looks like an afterthought mounted under the dash near passenger footwell