As I understand the stirling engine, it looks like you could power it that way if the temperature differential is enough. It would be impractical though. There is no such thing as a free lunch. To run the engine you will be losing heat from your house, and from the first and second laws of thermodynamics, you will lose more energy than if you just ran an electric motor or more conventional engine (depending on if your heating is electric or combustion). JAson ----- Original Message ----- From: "Ake Hedman" To: Sent: Tuesday, April 06, 2004 12:09 AM Subject: SV: ] Superb low temperature differential Stirling Engine This has always fascinating me. Living in Northern Sweden with with the heater on for the bigger part of the year: Could a stirling engine be used to drive an electric generator? Anyone tried that? /Ake -----Ursprungligt meddelande----- Fren: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU]Fvr Russell McMahon Skickat: den 6 april 2004 01:22 Till: PICLIST@MITVMA.MIT.EDU Dmne: [OT:] Superb low temperature differential Stirling Engine Superb low temperature differential Stirling Engine. As nice as I've seen. http://users.moscow.com/oiseming/lc_ant_p/Pic_Prj2.htm Can run on the warmth of a hand. Runs for hours from the heat in a cup of coffee (or hot beverage of your choice). _________________________ I made the mistake while looking for something else of looking in a mailbox that I don't look at often - archived "against the day" - it had 1397 unread entries. Only looked at a few. This entry caught my eye. Getting started on looking at Stirling Engines is a bad way to get any work done :-). -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads