Ok - removing it with a pickaxe caused the cable to not revert back, and when placing the induction furnace down, it believed it to sill be an electric furnace. However, removing the cable and replacing it solved that issue. Removing the electric furnace using the wrench and then placing the induction furnace seemed to work just fine however. (Placing both in same spot in both cases). It's still a bug, but you can play with it and get it to work anyways.
Thanks for the tip! 
Actually, yes. I replaced it with the induction furnace. Let me try placing it in a different spot. I noticed that the cable didn't change back to an unattached state (It still showed it going up towards where the old furnace was.) - I'll also try destroying the cable and then placing the furnace down.
I've updated to the latest version of forge, and using the latest IC2 release (1.81) and the electri furnace UI is still coming up when accessing the Induction Furnace.
Hey there!
I just made an induction furnace in 1.81 and it's titled and appears to be in fact an induction furnace. However, when clicking on it and opening the interface, it pops up with the Electric Furnace UI and wont accept redstone current to power and charge up. I do have quite a few mods installed but I didn't think it should matter right? I'm using a 1.4 version of forge (not the latest) so will try updating (I didn't use the latest recommended build as it was missing java files originally - I believe it's been fixed for almost a week just didn't bother updating so will do so now and see if that fixes the problem)
Another thing to look at - when dealing with prices or such there are already other mods and such out there such as permissions which restricts the destruction of blocks within an area or the such - and the power grid suppling the power could be protected all the way to the end user. Also, plugins like iConomy which have a built in currency could be used which would allow for a controled use of currency. All I would need is a block which only counts the amount of EU which has passed through it, and which can be reset. There is already a way to close the circuit if needed which means if they don't pay for the power they use, it gets shut off.
Another thing that might be really fun is setting up the block to allow only so much EU to pass through it before it closes itself. Same idea as above but expanded, allowing people to pre-purchase power and then use up to the amount they paid for.
Also I'd like to give that Mat block a try mentioned above. Might be interesting and fun to play with.
I'm working on building a city with a utilities center - I'd like to see a block which keeps an active count of units of energy which pass through it - perhaps a cable piece - which can be reset. This would allow a person in multiplayer to "sell" power. Just an idea.
