Copper copper everywhere

So we've had the house for over a week now and although it looks like a building site at the moment, it feels like we're making progress! All of the rooms are more or less stripped and cleared. We've even demolished a wall ready for the new bathroom!
We felt we'd made a good start on getting a water tight house, having the damp proofing done downstairs and the flat roof repaired upstairs. Unfortunately it seems we've disturbed something in repairing the roof as it now rains inside when it's raining outside... Fingers crossed this has been sorted today.
We've got a date for central heating now and so we've started removing all of the storage heaters. I'll be glad to see the back of them as they've been hard work dismantling them, removing all of the bricks one-by-one and shifting them all downstairs. It's definitely good exercise though!
Whilst clearing the carpets from the master bedroom we found something rather peculiar... Sticking up from a hole in one of the boards was what looked like a copper pipe. After removing a few of the loose floorboards we found that there is a network of copper pipes that have all been either cut off or capped. It appears that there has been a central heating system installed at some point but was removed in favour of the storage heaters. I'm not complaining though as it means we'll have quite a bit of scrap to cash in at some point - a holiday fund maybe...
Taking up the floorboards also solved the mystery of the random downstairs switch which made a horrific noise if it were turned on. There was a water pump between the floors which had at one point been connected to the central heating system... Switching it on just made it spin dry and hence the rather loud, unfriendly sound.