PDF Product Instructions

Find your product instructions by browsing or entering the part code into the search box below.
e.g Wi-Fi Optimum Vibe partcode: OP-WFSTAT
The part code for your product should be on the rating label affixed to the product itself.

Find your product instructions by browsing the list of PDF documents on this page or by entering the part code into the search box. For example: Wi‑Fi Optimum Vibe part code OP‑WFSTAT. The part code for your product is usually printed on the rating label affixed to the product itself.

What you will find on this page

This page hosts PDF instruction documents for a wide range of heating controls, timers, valves and related accessories. Each entry shows the file title, file type (PDF), file size and an update date. Many documents on the page are labelled with words such as “user”, “installer”, “guide” or “overview”, which indicate whether the document is aimed at an end user or an installer.

Example documents available

• OP‑WFSTAT – Wi‑Fi thermostat files (user, installer and guide documents)
• OP‑ECOSAVE – immersion timer documents
• OP‑IHTDIGI, OP‑IHTGPT – immersion timeswitch and timer PDFs
• TRV_Inst, TRV2_Inst, TRV4_Inst – thermostatic radiator valve instructions
• VAL222MV‑VAL322MV…_Inst – motorised valve instructions and specifications

Many documents on the list show an update date of 25 Nov 2024 and include a Download link to open or save the PDF.

How to locate the correct manual

• Find the part code on the product rating label. The site uses part codes such as OP‑WFSTAT to identify files.
• Enter that part code into the search box on this page to jump straight to matching documents.
• Alternatively, browse the list and check filenames. Look for words such as “user”, “installer” or “guide” to find the document that matches your needs.

Points to check before downloading

• Confirm the part code exactly matches the label on your product.
• Note the file size and update date displayed beside each entry to ensure you are getting the most recent copy available here.
• Choose between user and installer versions where both are provided—installer documents often include technical details that are not required for everyday use.
• Files are provided in PDF format. Ensure you have a PDF reader available before downloading.

Using the instructions safely

Follow the guidance given in the manufacturer’s instructions. If an instruction or task involves electrical work, plumbing or any other regulated trade, engage a suitably qualified person. If you are unsure which document you need or whether a task is safe to attempt, use the Contact or Support pages on Household Heating for assistance.

Household Heating contact details and support pages are available on the site. The company headquarters is listed as Rochester, Kent ME1 3SE.

Can’t find what you need?

If the part code search and the PDF list do not return a suitable document, contact our support team via the contact pages. You can also check related categories on the site such as Thermostats, TRVs & Lockshields, Programmers & Timers, Motorised Valves and Wi‑Fi heating controls and timers for product pages that may include links to additional documents.

If you proceed to download, click the Download link shown beside each file on this page to open or save the PDF to your device.

Quick find: Enter your part code (e.g. OP‑WFSTAT) in the site search or press Ctrl+F / ⌘+F to search this page. For a better experience, add a dedicated ‘Part code’ search/filter here that queries PDF filenames and attachment metadata.