UK Car Repair Questions? Ask a Mechanic for Answers ASAP
I am sorry that you have not been helped yet. I just came online and saw your question.
I am not quite clear on the smoke - do you mean that there is smoke out the tailpipe or smoke out the vents inside the vehicle when you accelerate.
If you mean out the tailpipe, then that combined with the loss of heating point towards a leaking headgasket.