[ERA Tom]

Hello all, I am looking for some advise on whether or not to order my ERA Cobra with a heater/defroster unit. I have currently spec'd the car with this unit, but now I am reconsidering. I don't want the added complexity of heater hoses in the engine compartment if it's not needed. I live in southern California near the coast so the weather is generally mild year-round. I will probably drive the car year round with a soft top in the winter. My questions are: is there a legal requirement in California for a heater/defroster and based on your experiences do they get used?