I have a Tower Compact Slo Cooker - about 25 years old and still great! These are the original ones that only use a light bulb of energy so you must put your boiling stock, etc into the pot. Mine only has an on/off switch no fancy Auto or High and Low, so switch it on to warm up at least 20 mins before you add your meal. You can then leave it on safely for up to 12 hours! Very energy efficient plus you can use the cheapest cuts of meat that need long cooking. No burning ever. Great for curries, soups, stews, etc. Hope that helps.
Dewanne, March 2009