Explore the full range of Honeywell products on Plumbco, featuring high-quality thermostats, zone valves, TRVs, programmers, and heating controls. Perfect for modern UK central heating systems, Honeywell products provide reliable performance, energy efficiency, and easy installation for both domestic and commercial projects.
The Honeywell V4073A1039 Mid‑Position Valve is a 22 mm compression three‑port motorised valve designed for conventional pumped central‑heating systems. It features a manual lever for filling/down‑filling, spring‑return operation, and a replaceable powerhead without system drainage, making it a reliable choice for installers seeking efficient flow‑diversion in Y‑Plan or S‑Plan configurations.
The Honeywell V04044C 1569 3 Port Diverter Valve 28mm is designed for efficient control of water flow in your heating system. This durable valve features a reliable diverter mechanism that allows seamless switching between different heating circuits. Ideal for residential and commercial applications, it ensures smooth operation and easy installation.
The Honeywell Home T4R Wireless 5/2‑Day Programmable Thermostat (Stock Code: 117021, Manufacturer’s Code: Y4H910RF4003) is a modern wireless room thermostat designed for UK homes. With 5/2‑day programming, intuitive text display, frost protection and compatibility with 24‑230 V on/off boilers and zone valves, it delivers smart, flexible heating control.
The Honeywell Home T4H110A1021 is a wired wall‑mounted thermostat that delivers precise time and temperature control for domestic heating systems. Compatible with 24‑230 V on/off boilers and zone valves, it supports 5‑2‑day (and 7‑day) scheduling, has intuitive programming, frost‑protection and a large backlit display - ideal for UK homes seeking dependable, energy‑efficient heating control.
The Honeywell Home Sundial RF2 Pack 1 (Y9120H2009) delivers energy-efficient heating control with TPI (Time Proportional & Integral) technology, compliant with Boiler Plus regulations. Featuring 2-way wireless connectivity at 868 MHz with a 30 m range, pre-bound from the factory for easy setup. Operates between 0–40°C, IP30 rated, and includes ST9120C powered by 230V AC and DT92E with 2×AA batteries. Supports wireless enable upgrades and comes with a 5-year warranty.
The Honeywell Home ST9400C1000 7‑Day 2‑Channel Programmer is a wired programmer offering independent control of both heating and stored hot water systems. With up to three on/off events per day, separate programmes for each channel, a large backlit Line‑of‑Text (LoT™) display for intuitive setup and automatic summer/winter time change, this unit delivers reliable scheduling and simplicity for UK installations.
The Honeywell Home R200C‑1 CO Alarm is a high‑quality stand‑alone carbon monoxide detector featuring a sealed 10‑year lithium battery and 10‑year sensor life. With a slim profile, clear alarm text for the hearing‑impaired, 48‑hour alarm memory and IP44 splash protection, it’s an easy‑to‑install, low‑maintenance solution for home safety.
The Honeywell Low‑Limit Pipe Thermostat L641B1004 is a compact, surface‑mounted thermostat designed for pumped central‑heating systems, offering a temperature range of approx. 10 °C–40 °C to protect pipework against under‑heating or frost. Its bi‑metal strip sensor and tamper‑proof adjustment make it a reliable choice for installers needing effective low‑limit control.
The Honeywell Home T6R‑HW Wireless Smart Hot Water Control (Y6H920RW4026) delivers intelligent remote management of both heating and stored hot water systems. With WiFi connectivity, app and voice‑assistant support, separate hot‑water scheduling and geofencing‑enabled comfort, it’s designed to boost efficiency and simplify everyday use.
The Honeywell Home V4073A1088/U 28 mm Mid‑Position Mid‑Position Valve is a robust 28 mm motorised 3‑port valve built to manage flow in domestic central heating systems where both the radiator and hot‑water cylinder circuits are pumped. With compression connections, spring‑return action, manual lever for filling/draining and removable power‑head without system drain‑down, it’s designed to simplify installation and improve system performance.