Sure disconnect it from the furnace add your own & let him play with it as long as he pays half your internet costs/month :)My son had to do this to stop his young kids hacking the Nest.

Sadly, the same disconnect the hotel manager displays between taking action and achieving results often exists in the world of philanthropy. 

Make sure you've got a disconnect right there at the heater, whatever you do - I didn't notice if you had one in the picture.  

Looking at the joint at the end, it appears to be quick disconnect so maybe it's the retractable hose for the kitchen faucet.

I decided to disconnect their electric and water, and I gave them the phone number of someone else that had a furnished house. 

Does yours just connect and disconnect?

After much effort and digging my txt reached out to her daughter (as mom (tenant) wouldn't pick up my call) who said they left the key under doormat, electricity and water disconnected as of May 1st.

You might have to upgrade your disconnect to accomodate but after that your could meter your heating bill away which might be a decent amount up in Maine. 

We have to disconnect and chain the digger to the front end loader and pull the whole thing out of the hole. 

Do you want an active relationship or a disconnected relationship?