2006-11-13 13:12:37 · 11 answers · asked by yungg721 1 in Cars & Transportation ➔ Other - Cars & Transportation
Neither, the heat is from air blown over the engine block and the cold air is from the outside.
2006-11-13 13:14:21 · answer #1 · answered by jimmywalls1982 3 · 0⤊ 0⤋
I don't know how you get climate control without air conditioning. Is it just like what a/c people call an economizer (opening outside vents when the outside air is cold)? If so it just increases car's drag a little but not as bad for efficiency as an AC.
Heat is improving the efficiency of the engine by eliminating the excess engine heat so it does not use more fuel.
Air conditioning uses a lot more fuel to run the compressor on the AC. However if you are going over 50mph and ride with the AC on and the windows shut the reduced drag from the closed windows eliminates most of the extra fuel waste.
2006-11-13 21:16:32 · answer #2 · answered by Rich Z 7 · 0⤊ 0⤋
If I read your question right, you're asking which situation uses more fuel - turning the heater on or not, right?
I'd say running the heater, by just a smidgen. And that's only if you have the fan running. The little bit of electricity to run the fan will take a bit more power from the engine to run the alternator. If you don't run the fan, then it'll be the same.
Heat in most cars comes from waste engine heat in the form of hot coolant from the engine's cooling system that is circulated through the heater core. Turning on the heater opens a valve that lets that hot water/antifreeze mixture move through the heater core. The fan blows air through the core and into the car's cabin. If you don't open that valve, the hot coolant would stay circulating in the engine, and get dumped overboard when the coolant goes through the radiator.
But the difference in fuel used with and without the fan is minimal. At best, it might mean you can coast up to the pump, vs. carrying a gas can a couple hundred feet.
2006-11-13 21:19:55 · answer #3 · answered by Ralfcoder 7 · 0⤊ 0⤋
If you have climate control, you do in fact have air conditioning, the term is misleading. You can't really create cold on a hot day without a compressor, the heart of an air conditioning system. The compressor will use gas when it is engaged. It is really only engaged while making cold. On a hot day, you get a free ride.
Some units use the compressor when the defroster is being used to keep the humidity down inside the car. You probably have a Cadillac or some sort of luxury vehicle. Stay comfortable.
2006-11-13 21:18:34 · answer #4 · answered by Robert D 4 · 0⤊ 0⤋
If the car has no AC then don't worry about what uses more gas. The heater uses the anti freeze from the engine to heat the car so there is no power loss there and since there is no ac there is no power loss there. So basicaly neither one will use more gas
2006-11-13 21:16:43 · answer #5 · answered by Jimmy C 5 · 0⤊ 0⤋
It shouldn't make any difference. With no A/C, there would be no compressor to rob power from the engine. The heat comes from the coolant inside the engine, so there isn't a power loss associated with running the heater.
2006-11-13 21:20:55 · answer #6 · answered by Mr. Badwrench 6 · 0⤊ 0⤋
i don't think there is such a thing as having climate control without a/c how would they be able to cool warm air without a/c?
2006-11-13 21:17:13 · answer #7 · answered by lem604 2 · 0⤊ 0⤋
Definately the cold, I just asked my father, who is a mechanic.
2006-11-13 21:19:57 · answer #8 · answered by Randizzle 2 · 0⤊ 0⤋
a/c heat comes naturally
2006-11-13 21:14:41 · answer #9 · answered by Anonymous · 0⤊ 0⤋
id say heat
2006-11-13 21:14:48 · answer #10 · answered by mizz_blond_ee 2 · 0⤊ 0⤋