Nest thermostats work with zoned boiler systems. In zoned systems, each thermostat controls heating independently in order to heat different areas of the house. Zoned systems save energy by allowing homeowners to only heat the part of the home that they need, instead of the whole house.

Can Nest control 3 zones?

Unlike more expensive systems such as Honeywell Evohome, the Nest is really designed for smaller homes or those where only one or two thermostats are needed. It supports multiple zones, but only if your heating is already plumbed into separate zones.

Do I need 2 thermostats for 2 zones?

Sometimes, central HVAC systems are broken up into multiple zones (through duplication of heat sources, or usage of dampers and ducts). Each of those circuits will require their own dedicated thermostat. If this is the case, we’d recommend a separate smart thermostat for each zone.