Slide background
It’s more than a smart thermostat.

Step 1: Before You Install

*If you have HōlHōm Green, follow the installation instructions for HōlHōm.

What’s In the Box – HōlHōm

What's in the Box

  • HōlHōm, the smart teaching thermostat
  • Welcome Card
  • Quick Start Guide
  • 2 screws and 2 plastic anchors
  • Installation pen tool with level
  • Optional accessory:

What’s in the Box – HōlHōm+HH+Components

  • HōlHōm+, the smart teaching thermostat
  • Meter Data Collector
  • Clamping Strap
  • 2 Alkaline “AA” Batteries
  • Clear Alignment Template
  • Rubber Shim
  • Welcome Card
  • Quick Start Guide
  • 2 screws and 2 plastic anchors
  • Installation pen tool with level
  • Optional accessory:

Tools Needed

You will need the following tools:

  • Small flat screwdriver (3 mm or 1/8 inch) to remove and tighten wires
  • Large flat screwdriver to remove thermostat from the mounting bracket
  • Phillips #2 screwdriver to attach the mounting bracket to wall
  • Pencil to mark screw holes on wall
  • Level for mounting bracket
  • Drill with 3/16 inch bit if mounting on drywall


HōlHōm is compatible with the following types of heating and cooling systems:

  • 24 Volt AC systems with or without a common wire
  • Conventional furnaces with 1 or 2 stages of heating
  • Conventional Air Conditioners with 1 or 2 stages of cooling
  • 1 or 2 stage Heat Pumps with 0 or 1 stages of auxiliary heat
  • Heat Pumps with reversing valve on in heat or on in cool
  • Dual transformer systems (Rh and Rc wires) with 1 stage of heat

HōlHōm supports the following optional features:

  • Heat Pump fault sensor
  • 2-wire Outdoor temperature sensor with 10 kOhm thermistor
  • Air filter fault sensor

The following types of heating and cooling systems are not supported:

  • Heat Pumps with 2 or more Aux heat stages
    • Only 1 stage of Aux heat is supported
  • Multi-Zone Thermostats
    • Each HōlHōm can only control 1 zone
  • Line Voltage Systems (for example baseboard heating)
    • Energate only supports 24V systems, not 120V or 240V
  • Proprietary Communication Protocols between HVAC and thermostat
    • For example Carrier Infinity, Bryant Evolution, and the fully modulating Ruud/Rheem systems

Remove Your Old Thermostat

  1. Before installing the new thermostat it is a good idea to verify all heating and cooling stages for the existing HVAC equipment are working correctly.
  2. Disconnect power to the HVAC equipment before starting to avoid risk of electrical shock.
  3. Remove the old thermostat cover. Some will pop off, but others may have screws or snaps to hold it on.
  4. Take a picture of the old thermostat wiring before you change anything.
  5. Label each of the wires with the letter of the terminal they are connected to on the old thermostat.
    • Make a note if there are any jumpers on the thermostat connecting 2 wires together (for example Rh and Rc).
  6. Disconnect the wires and remove the old thermostat from the wall.

Last Tweets
  • Living green tip - explore the energy saving settings/power options for your computer and monitor - or only turn them on when needed,