Guides
Plain-English guides to smart thermostats on the AC systems used in the Gulf and beyond. Every guide lists its sources.
CompatibilityHow to connect a Nest or ecobee thermostat to a VRF or VRV systemNest and ecobee expect 24V wiring. VRF indoor units talk their own language. Here's how the two get connected.8 min readBrandsDaikin VRV and smart thermostats: P1/P2, S21 and what actually worksDaikin units use the P1/P2 bus and, on many splits, an S21 port. Here's what that means for Nest and ecobee.7 min readBrandsUsing Nest or ecobee with Mitsubishi Electric AC: CN105 and M-NET explainedMitsubishi Electric splits use a CN105 port. City Multi VRF runs on M-NET. Here's how a smart thermostat fits in.6 min readSystemsSmart thermostats for fan coil units: 2-pipe vs 4-pipe explainedFan coils need fan speed and valve control, not just on and off. Here's how 2-pipe and 4-pipe units work with a smart thermostat.7 min readBasicsThermostat wiring explained: R, C, W, Y, G and the C wireWhat each 24V thermostat terminal does, why smart thermostats want a C wire, and why most Gulf AC units have none of them.7 min readEnergyDo smart thermostats save energy? What the data actually saysENERGY STAR puts the average at over 8% of heating and cooling energy. Here's what the studies show and where savings come from.7 min readEnergyBest thermostat settings for hot climates: a room by room guideEach degree can cut AC use by up to 5%. How to set schedules, setbacks and thermostat placement in a cooling-heavy home.6 min readInstallationSmart thermostat adapter installation: what to expect, step by stepFrom checking your AC model to testing every fan speed: how installation works and what to prepare.6 min read