You can run one or two, depends on your preference. You can get rheostat switches from all of the vendors for the heaters. I'm assuming your two speed is a paddle switch. I'm not aware of anyone repoping those so you'll probably want to hang on to it. I use a rheostat for my heater and a two speed paddle for my defrost.


Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.