I have a 1997 toyota camry. I am having a problem with my heater it does not blow hot air unless i am accelerating then when i let off the throttle it cools right back down. I just replaced the thermostat and it didnt change the problem i can not figure it out? any suggestions?

 

See your other post.

 

Try to start diagnosing from this http://www.automd.com/diagnose/qna?aid=410&option=1. It could be a bad heater valve. That was my problem before and our car status were the same.

 

I recommend 25 watts for every 10 degrees of ambient temperature you need to raise your aquarium temperature. Often when heater problems occur it is due to the heater being of the improper wattage to meet heating requirements of an aquarium in the location it occupies.