I have a 1997 Honda Civic, so on cold days the heat doesn't even work for about 30 minutes.But when I turn on the defroster and rear defroster, it immediately turns on the A/C button, regardless of whether the temperature is on cold or hot. Also, does circulating air button next to the A/C button need to be on?I know this much: To defrost, use heat. To defog, use A/C. But since the AC button can turn on or off when it's on any temperature setting, what options does that give me? And since the option to circulate the air in the car or take it in from outside through the vents is there, which do I use? And what about those days when it's just a morning dew over everything?
It is moisture on the windows, the A/C turns on because it takes the moisture out of the air ( witch is why in the summer, you get the puddle of water under the car). Taking it out of the air, and blowing dry air on the windows speeds the clearing process. When th ewindows are clear, turn off the defroster or adjust to a different setting.. When the AC is on and the heat is blowing it is normal. Hot air will still come out.
i exploit heat water with a splash dish cleansing soap and rubbing alcohol jumbled in. It takes the ice off of my homestead windows speedy interior the mornings! determine you no longer use warm water, only a splash warmer than lukewarm.. few drops of dish cleansing soap, a squirt of rubbing alcohol, shake it up -- then slowly pour it over your homestead windows. It takes it off quickly and leaves your vehicle cleanser. sturdy luck. :)
There is a defrosting fluid that you can spray on windsheilds and possible put in your windsheild washer fluid. If its the inside, there is a RainEx product that prevents the inside windows from getting foggey. You can get it at Autozone or PepBoys, or any auto parts store.
You can always entertain the idea of replacing your heat exchanger for a more effiecient one for take the car in to check and see why it is taking so long for it to heat up. As far as the air circulator goes, it all depend if you are trying to defog or defrost. If you are tryinf to defrost, turn it curculate the air inside the car. If you are trying to defog, cycle the outside air in. As far as the ac coming on right away, my Pilot is like that. No matter what setting you have it on, when you turn on the system, the ac automatically turn on and you have to go and manually turn off the ac. I think that most car manufacturing are goint that route. Also, I would not recommend adding anything to your windshileld fluid or spraying anything on your windshield. Adding other fluid to your windshild wiper just increase the alcohol percentage of your fluid which leads to other problems. Spay on are usually some oil base what not. In cold weather, you are going hate yourself for spraying it because it is usually the first thing to freeze. My recommendation? Get your heat exchanger and cooling system looked at because it should not take that long to heat up the car and experement with your enviromental control and see what work best for you. p/s... Dont buy any ceremic heater in an attempt to heat the car. Useless for that purpose. If you are going to go that route, I would say by a block heater instead.
take 1 of those little fans that runs off of 12 volts, plug it in your cigarette lighter and sit it on the dash.