We are trying to install a smart thermostat (Ecobee 3) so we are in need of a C wire from our boiler. We see a green wire in the wall, but it's not connected to our thermostat currently since it doesn't require a C wire. When we look in the boiler room however, it seems this green wire isn't connected to anything? The green wire is cut from the main boiler and then there is a cut green wire going up through the ceiling to the thermostat. It doesn't make sense to us. We're having a very hard time getting an electrician to come do this for us, they keep canceling or are a now show, I don't blame them, I think it's too small of a job for them. I attached some pictures of the wires, any ideas of what's going on? Is this fixable for the average DIYer or do we just need to keep waiting for an electrician? Thank you!