Renters can use smart thermostats from brands like Amazon, Ecobee and Nest, in most situations, and when I asked thermostat specialists at Ecobee for savings info, they reported that, "All Ecobee ...

The building currently has two furnaces to cope with its many nooks and crannies, with individual thermostats in each of the five rooms. If a thermostat was activated in one of the rooms ...