Honeywell Home Evohome Starter Set THR99C3102 - Smart Zonal Heating With Wi-Fi Control
Published on 09/10/2026 at 21:59 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS
Honeywell Home Evohome Starter Set THR99C3102 is a Wi-Fi enabled smart heating system that combines a central touchscreen controller with electronic radiator thermostats to create zonal temperature control throughout a home. The connected controller links to Honeywell's Total Connect Comfort platform so owners can adjust heating schedules and temperatures remotely via a smartphone app.
Smart Heating System And Components
The Evohome Starter Set THR99C3102 is described as a Wi-Fi starter package for smart heating control in family homes, apartments, and offices, built around a central control unit and radiator thermostats.Technical data sheet The supplied control unit in this package is a dedicated Evohome Wi-Fi touchscreen thermostat that serves as the interface for configuring heating zones, schedules, and temperatures.Review of Evohome system
According to a technical data sheet for the Connected Home Evohome Wi-Fi starter package, the THR99C3102 bundle includes one central control unit, two AA HR6 Ni-MH rechargeable batteries for the controller, a table stand, a power supply, and two electronic radiator thermostats designated THR092HRT.Starter package contents The documentation specifies a measurement accuracy of 0.5 °C for the system, with a setting range from 5 °C to 35 °C for controlled temperatures.Starter set technical parameters
Control Capabilities And Zonal Heating
The Evohome system is designed to allow heating regulation for apartments and smaller homes by dividing the property into separate zones controlled by individual radiator thermostats and the central touchscreen.Zonal heating description A Czech-language description of a related Evohome starter set explains that the control unit can manage up to twelve independent heating zones using radiator controllers, underfloor heating, and zone valves, illustrating the system's intended scale.Up to twelve zones capability
Retail documentation for Evohome starter sets describes the design as wireless, with an external sensor option and weekly programming to tailor heating schedules.Wireless design and weekly program The system uses a backlit display on the control unit for visibility, and power is supplied both via 2x AA 1.5 V DC batteries and a 230 V AC mains adapter for fixed installation.Display and power details
Honeywell Home Evohome Smart Heating Overview
Resideo uses the Honeywell Home brand for connected comfort solutions such as Evohome smart heating controls.
Technical Specs And Physical Details
Technical listings for the Evohome Starter Set ENG describe the system weight as 2.72 kg for the packaged components, including the control unit, thermostatic heads, stand, power adapter, and accessories.Package weight specification The control approach is identified as a backlit display interface, with wireless communication between the controller, radiator valves, and relay modules.Wireless control description
The starter packages from Evohome typically use a wireless relay box such as the BDR91 to connect the heating system to the central controller, allowing on-off control of boilers or zone valves from the touchscreen.Wireless relay box description The documented operating temperature range of 5 °C to 35 °C covers typical residential heating needs, and the weekly program allows setting different time-temperature profiles across days to match occupancy patterns.Weekly program and setting range
Pricing And Market Position
A UK-focused heating retailer lists a Honeywell Home Evohome Starter Kit with Wi-Fi controller, table stand, wireless relay box, and five HR92 radiator controllers at £569.99 including VAT, illustrating the premium positioning of multi-zone smart heating kits compared with single-zone smart thermostats.Pricing for multi-zone starter kit A separate retailer notes that a single-zone connected thermostat pack compatible with the Evohome ecosystem can be bought for under £140, significantly lower than the full multi-zone starter kit price.Single-zone pack price
These price points indicate that Evohome starter sets are positioned for homeowners willing to invest more for granular room-by-room control, as opposed to simpler whole-home thermostats. The inclusion of multiple electronic radiator thermostats, rechargeable batteries, and a dedicated touchscreen controller contributes to the higher cost structure compared with a single smart thermostat and one room sensor.Supplied components contributing to cost
Comparison With Single-Zone Smart Thermostats
A detailed review of Honeywell Evohome contrasts the multi-zone system with single-zone smart thermostats such as Nest and Netatmo, explaining that a single-zone connected thermostat pack can deliver similar overall home control for under £140 but without per-room zoning.Comparison with single-zone systems In that review, the Evohome starter kit price remains at £249 for an older configuration, whereas the multi-radiator packs and expanded kits bring higher cost but also greater control granularity.Starter kit price in review
From a functional standpoint, the Evohome Starter Set THR99C3102 adds value by controlling multiple radiators individually and enabling up to a dozen distinct heating zones, which can reduce overheating in unused rooms and tailor comfort more precisely.Twelve-zone control explanation Single-zone systems, by contrast, adjust the boiler based on a single reference temperature, leaving internal room-to-room balancing to manual radiator valve adjustments.
Use Cases And Limitations
The Evohome Starter Set THR99C3102 is aimed at homes and small offices where radiators or heating zones can be individually controlled and where users want Wi-Fi access to heating schedules through Honeywell's Total Connect Comfort app.Usage overview Technical descriptions emphasize compatibility with radiator valves using threaded connections such as M28x1.5 or Danfoss RA adapters, making the starter set suitable for common European radiator installations.Valve adapter compatibility
At the same time, Evohome's reliance on mains-powered relay boxes, wireless communication, and specific valve adapters means that installation favors properties with accessible radiator valves and compatible heating systems. The documented operating temperature range from 5 °C to 35 °C and weekly programming make it well suited for conventional radiator heating patterns, but less applicable where heating is controlled purely at a central air handler without room-level emitters.Operating range and application
Key Facts About Honeywell Home Evohome Starter Set THR99C3102
- Product: Honeywell Home Evohome Starter Set THR99C3102 Wi-Fi heating control package
- Manufacturer: Resideo Technologies, Inc., Honeywell Home licensed brand
- Category: Smart heating control system with zonal radiator thermostats
- System weight: 2.72 kg packaged components including control unit and thermostatic heads
- Temperature setting range: 5 °C to 35 °C with measurement accuracy of 0.5 °C
- Power supply: 2x AA 1.5 V DC batteries plus 230 V AC mains adapter for controller and components
- Target audience: Homeowners and small office users seeking multi-zone radiator heating control and app-based scheduling
