So I had a block heater installed recently- can't use it yet for lack of
an outside outlet- but I was wondering what kind of time is required for
this to warm up the block (as much as it is capable of)? Obviously this
depends on the outside temperature, so let's say it's zero fahrenheit
outside, am I looking at overnight? an hour? half-hour? 10 minutes?

If it matters it's an '87 900S (NA 2.0L 4-cylinder) w/Saab block heater.
I just replaced the battery and have been taking it inside at night-
this appears to be a dramatic improvement over last winter all by itself.

TIA

"S R Sharp" <aiglos (AT) capital (DOT) net> wrote

I've only ever dealt with one vehicle with a block heater, it got plugged in
every night during the winter so it was warm enough to fire up in the
morning.