I drove my '62 DeLuxe Type 1 for a decade and a half, daily, between infrequent lulls, from 1978--1993. Never had a heater that worked worth a damn, but in Texas, it isn't critical. At first, during one really bitter winter, I bought a big meerchaum pipe and stoked it up to use as a hand warmer (no kidding), finally buying a little commercial catalytic metal hand warmer. My car is RHD style, which is a little challenging with drive-up windows and seeing around big slow vehicles on the left (in those rare cases where I could actually pass someone).
I am just now getting the Beetle back on the road after ten years of hibernation, but my principal worry is the incredible speed and recklessness of current drivers--my po' little 40 horse might be a scant weak. I'll say this: if anybody ever rear-ends this car (again) I will beat them to death if the crash doesn't kill 'em.
Holiday cheer
buzzy