Crock pot temps?

Does anyone know what equates to a crock pots 'High, medium and Low' in actual degrees? Mine just has numbers and all the recipes i see don't state this. Seems as though they say low for 6 hours and I put it on my lowest setting it's done in an hour! Don't want to burn my house down please help  

Google works.
http://www.dvo.com/newsletter/monthly/2003/november/1103remedy4.html


Cooking on HIGH

• Cooking on HIGH for one hour is equivalent to 2 to 2-1/2 hours of cooking on LOW.
• The HIGH setting of a slow cooker ranges in temperature from 300-325 F.
• The slow cooker becomes a "soup kettle" as liquids boil and evaporate at this temperature.
• Due to moisture loss, food can cook dry. Check food periodically to ensure enough liquid remains in the pot. If the liquid boils away, the food may burn.
• Turn the unit to HIGH and remove the lid to thicken juices by evaporation.
• Make sure you're home during the final hours of cooking time so you can check the food.
• Stir food periodically to distribute flavors and to prevent sticking. This will help make the stoneware crock easier to clean.

Cooking on LOW

• Cooking on LOW for 1 hour is equivalent to cooking on HIGH for 30 minutes.
• The LOW setting of a slow cooker ranges in temperature from 200-210 F.
• Liquids only simmer at this temperature.
• Due to little evaporation or moisture loss, foods become more watery.
• Foods will not burn or overcook on the LOW setting.
• Cooking on LOW ensures a "start it and leave it" fuss free meal. No checking or stirring is required.