In a large saucepan sauté the onion, garlic, carrots, and celery in a couple of tablespoons of water - over medium heat - for five minutes - stirring often.
Add the tomato sauce, pumpkin, beans, and chilies and stir well.
Add the four cups of water to the chili and stir well, then add the spices and stir them in before reducing the heat to low.
Cover the chili and allow it to simmer - covered - for 30 minutes.
Serve piping hot!