You would start the engine then turn it on.
The thing you were on about, you can still get them and run off 240 volt on a timer switch
I want it to warm the car heater up faster
+ my heater is not that hot when the car is up to temp. It's warm not hot
Yes this per heater is working ok - the heater gets hotter faster.
I just start the car turn it on and turn it off when the temp is up around 1/2 way
but still not not had a frosty day to try it out.
this is what I fitted in the heater hose
I just start the car turn it on and turn it off when the temp is up
around the 1/2 way
that's up to you mate but it warms the heater up faster
some cars have a diesel heater like rover 75 and range rover
some have 12 volt heaters some pugs and Renaults
and some have this system like Renaults fords Nissan
But! surely it burns more fuel as well, because of all the load on the alternator/e.t.c. ??
...and saps the battery which is already sweating from starting a car in 0C conditions? I presume your advice means turn on the services after starting up otherwise too much load..
R-V-M