Split heating costs

Landlords typically make the experience of renting completely awful, it never fails. I live in a single family house with a basement that has been converted into a separate home with its own entrance. The basement is entirely connected to the main floor but is separated by a door that is locked from the inside. The landlord recently had a family interested in the basement home. They are a young couple with a baby. The whole house shares a single temperature control plus it is heated by gas. For the past couple years, we have always kept the temperature control set low in the wintertime to save energy. We have to spend money for our own heating bill we can’t really afford to keep the place toasty all winter long. Well, the new family that moved in doesn’t seem to appreciate that and asked the landlord to set the temperature control higher. The landlord controls the temperature control. It has a lock on it that only the landlord can access. Before, the landlord has been kind about letting us choose the temperature. Now, she seems to be favoring the new family that just moved in. The heat has been blasting for the past month so that the basement home stays warm. Both of us just got our first utility bill and it’s over two hundred dollars higher than it normally is during the winter. Not only that, but the landlord wants us to split it equally with the people who live in the basement! I am calling the landlord later to demand we get a separate temperature control or utility bill. This is completely unfair!

heating set up