
Smarter wireless programmable thermostat and receiver
The H3747 is a smart-capable wireless thermostat and receiver designed for homes with more complex heating needs, offering control of up to four zones with flexible smart functionality that works with or without Wi-Fi.
Larger homes and properties with multiple heating zones present a particular challenge for older control systems. Traditional multi-channel programmers are often wired, inflexible, and difficult to upgrade without significant disruption. They treat every zone identically, offer no remote access, and provide no intelligence around how the building actually uses heat. The result is energy wasted heating unoccupied zones and occupants resorting to manual overrides that undermine any savings a schedule might otherwise deliver.
The H3747 addresses this directly. As a 4-channel wireless receiver and thermostat, it provides independent control of up to 4 heating zones, including heating and hot water, from a single unit. It is wireless-enabled and Bluetooth-ready out of the box, allowing local control via an app without Wi-Fi. An optional plug-in Wi-Fi adaptor allows full remote control from anywhere, with no rewiring or gateway required. Compatible with a standard 9-pin backplate, the H3747 can also control the schedule of existing wired thermostats.

simplifies multi-zone heating control and makes smart upgrades straightforward for installers and homeowners.
The H3747 suits larger residential properties and any installation that requires independent control of several heating zones. For landlords and housing providers looking to improve energy performance across a portfolio, the H3747 offers a scalable, Boiler Plus-compliant solution that meets tightening efficiency standards without requiring a wholesale system replacement. Its modular, smart-upgradeable design also ensures the system can grow with the household's needs over time.

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It can independently control up to four heating zones, including heating and hot water, from a single unit.
Yes. It is designed for larger residential properties and installations that need to control several heating zones independently.
Yes. Bluetooth is built in, so you can control it locally with the app without Wi-Fi. If you need remote access, you can add an optional plug-in Wi-Fi adaptor.
No. The H3747 does not require a separate hub or gateway. The optional Wi-Fi adaptor plugs directly into the unit for remote control.
The H3747 uses a standard 9-pin backplate with click-off/click-on wiring, making it suitable for straightforward replacement of many existing multi-channel controls.
Yes. The H3747 can control the schedules of existing wired thermostats, so you can upgrade multi-zone control without replacing every thermostat.
Yes. You can use the H3747 as a wireless programmable thermostat and add the optional plug-in Wi-Fi adaptor later for remote access.
Independent zone control lets you manage different areas separately, while load compensation and optimum start and stop improve heating efficiency.
Yes. It is designed as a scalable, Boiler Plus-compliant solution for larger residential properties and housing portfolios.
It combines four-channel wireless control with Bluetooth and optional Wi-Fi connectivity, and it also lets you schedule existing wired thermostats from the same system.
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