Ceramic car heaters - PR {P}
Has anyone got (or know anyone who has) one of those ceramic in car heaters you see advertised in the sunday papers? They sit on the top of the dash and plug into your cig lighter and give instant heat out. Ive read a review on one site and the writer seems somewhat underwhelmed. Thanks in advance.
Ceramic car heaters - PhilW
Bought one for my son a few years ago as a temp measure before he got a new car when he had a blocked heater matrix on an old car and needed to set off for work at about 5 am-- he was TOTALLY underwhelmed. He reckoned the sleeve of his coat was more effective at clearing the screen. Only a very limited sample obviously!!
Ceramic car heaters - mss1tw
Breath on your hands, now.

Same thing.

(I have one)
Ceramic car heaters - PR {P}
Thanks for the replies. It was going to be a present for someone who moans all the time about how cold her car is in the mornings in winter. Now to think of something else!!
Ceramic car heaters - mss1tw
Semi serious reply, I'm just going to leave a fan heater in my car with an extension lead in the garage...whack it on for 10 minutes or so...nice warm defrosted car.

I can't afford a Kenlowe/Eberspracher
Ceramic car heaters - local yokel
Put it on a timer switch the night before for added comfort!
Ceramic car heaters - Ruperts Trooper
Old timers will remember a 12v heater element that was attached to the windscreen with suction pads. Those cars had no way of directing even feeble heater output onto the windscreen. It must have been very low power as that was in the old 22A generator days!
Ceramic car heaters - bell boy
Put it on a timer switch the night before for added

and make sure the local fire brigade have the full postcode
Ceramic car heaters - Chas{P}
Total rubbish.

Ceramic car heaters - malteser
"ceramic cars": whatever will they think of next?

Roger. (Costa del Sol, España)
Ceramic car heaters - tunacat
Yeah, I got one of these years ago to try in a car in which I'd had to bypass a leaking heater matrix. They are indeed almost no use at all.

What are they, 150 Watts? Really makes you think how inefficient a car engine must be - *loads* of kilowatts of energy lost as heat.

Also makes you wonder what they'll need one day for a truly effective heater in a car which is all-electric...

Ceramic car heaters - storme
surely some heat is better than none?????

by using it ,,the car will get warmer quicker than by not using it
sometimes a little bit too much opinion....but its only because i care !!!
Ceramic car heaters - Peter D
Often the cigarette lighter socket is fuses at 10 amps so these heaters can only be 120/140 watts tops and it's a straight physics from there. 120 watts will contibute but not a lot. Regards Peter
Ceramic car heaters - kithmo
I bought SWMBO one some years ago (still have it, never used) which was rated 200W, including the motor, and it states not to use it without the engine running. No good for preheating the car, unless you want to flatten your battery, so what is the point ? the heat from the engine will warm the car up quicker. Very poor IMO.
Ceramic car heaters - KMO
The Prius in some countries (not here) is fitted with a total of 660W worth of ceramic heaters in the footwell air ducts and the heater core, in an attempt to warm things up a bit quicker. Even at that power level, it's still not terribly effective, apparently.

The normal coolant heat-exchanger is rated at 5300W, which is presumably typical of most cars. That should give you some idea how far away those piddly 12V 250W heaters are from providing useful heat.
Ceramic car heaters - none
Going back to the 70's, Colt (Mitsubishi) used to boast about a 6kw heater.
Ceramic car heaters - Dulwich Estate
Take a passenger!

Didn't I read somewhere that a human being radiates around 60 watts.

Ask Honest John

Value my car