Horstmann Secure 425 Tiara Two Circuit Electro-Mechanical Programmer

Please note: Item is new and unused but packaging is tatty, worn and sun bleached. Doesn't effect product or use. 

Incorporating a twin circuit, this Horstmann 425 Tiara hot water and central heating programmer offers 16 programmes for fully pumped systems, including independent programming of heating and hot water and 10 programmes for gravity HW or pumped CH systems. It is ideal for use in gravity and fully pumped systems with zone valves.

Product Features

• Simple to use with settings adjusted in seconds
• rotating 24 hour dial and tappet
• Easy to install using 9 pin backplate
• Advance control to allow manual override on or off