Get €10 off on orders over €50 - Add TJY1222 at checkout (T&C apply)
E-MAIL [email protected]
Can we help you? Chat with an expert nowChat with an expert now
Take practical control of your heating system with the EPH Controls R17 1 Zone Timeswitch — a reliable, mains-powered thermostat ideal for managing one heating zone with flexible scheduling. Designed to operate boilers, pumps or valves, the R17 provides clear ON/OFF control with multiple programming options and easy-to-use features that suit a wide range of residential and light commercial heating systems.
The R17 features a simple yet versatile interface that allows installers and end users to programme daily heating schedules across different modes — 24 Hour, 5/2 Day or full 7 Day — giving you the flexibility to match system operation to occupancy patterns and maximise comfort. A clear LCD display shows current time, day, active mode and set periods, while straightforward buttons make configuration on site easy.
Built with robust components and backed by EPH Controls’ reputation for quality, the R17 includes in-built frost protection and a volt-free SPDT output, making it suitable for controlling traditional boilers and heating equipment without complex wiring. Whether you’re installing a new heating system or upgrading older controls, the R17 provides dependable zone control with practical programmability.
Key Features
Technical Specification
TJ’s Tip
Mount the R17 about 1.5 m above floor level and away from direct sunlight or drafts to ensure accurate temperature sensing and optimal schedule performance. Take advantage of the 5/2 Day mode for typical weekday/weekend routines to maximise heating efficiency without complexity
| Brand | EPH |
|---|---|
| Provided by | TJ O'Mahony |
| Delivery Rule | small & light |
Last update: 17 August 2026
We offer reliable delivery services throughout the Republic of Ireland, with straightforward delivery charges for both trade and DIY customers. Delivery options are confirmed at checkout based on your order and delivery Eircode.
| Delivery Type | Delivery Area | Delivery Charge | Delivery Time |
|---|---|---|---|
| Small Items | Republic of Ireland | €9.99 | 3–4 working days |
| Large & Heavy* | Standard delivery area | €29.99 | 5–7 working days |
| Extra Large* | Standard delivery area | €50.00 | 5–7 working days |
| Paint 5L or less** | Standard delivery area | €19.99 | 5–7 working days |
*Standard delivery policy. Promotional delivery rates may apply during campaigns.
30-Day Returns
TJ O'Mahony offers a 30-day returns policy on eligible unused products, giving you additional time beyond the statutory 14-day cooling-off period applicable to most online consumer purchases.
Eligible products can be returned for a refund or exchange within 30 days of delivery or collection, provided they are unused, in their original and re-saleable condition, complete with all supplied parts and accessories, and accompanied by proof of purchase.
Please note: Return restrictions apply to certain products, including Mixed Paint, certain Bagged Building Products, Solid Fuel, Special Order, Non-Stock and Catalogued Products. Your statutory rights in relation to faulty, damaged, incorrectly supplied or non-conforming goods are not affected.
