A landlord thermostat is one that the landlord controls and is usually tamper-proof. This means that tenants are unable to make changes to the temperature settings that the landlord has established. Many landlords decide to install these thermostats so that tenants don’t tamper with the temperature control system. When tenants have free rein over these devices, they might regulate the temperature erratically, which increases bills. When the landlord is the one covering utilities for their units, these costs add up quickly. One example of a costly action is when a tenant leaves for the weekend and doesn’t make any adjustments to the thermostat. Because of this, the system continues to heat or cool the unit at full force, driving up that month’s bill.