Horstmann 425 Tiara Programmer Product Code: 18470

€68.95
Common timing. 3-wire installation. Override facility. BS EN 60730-2-7: 1992 and 8182 / 8319, BS EN 50081-1 and BS EN 50082-1: 1992.

Features

  • 24 Hour Programmable
  • 26 Pre-Set Programmes
  • 2 On/Off Periods per Day
  • Suitable for Gravity-Fed & Pumped Systems
  • 2 Year Manufacturer's Guarantee
  • 3-Wire Installation
  • Energy Saving Trust Approved
  • 2 Year Manufacturer's Guarantee (T&Cs Apply)

Specifications

Switch/contact rating: 6A. H x W x D: 112 x 153 x 33mm. Backplate fit: 9-way (included). Not suitable for underfloor heating.
Additional Information
Technical Specification
  • Brand : Horstmann
  • Product Height : 112 mm
  • Product Type : Programmer
  • Programme Facility : 24 Hour Programmable
  • Central Heating Control Type : Programmers
  • Model No : 425 Tiara
  • Product Width : 153 mm
  • Product Depth : 33 mm
  • Pack Size : 1
  • Suitable System : Suitable for Gravity-Fed & Pumped Systems
  • Installation Type : 3-Wire Installation
  • Manufacturer Guarantee : 2 Year Manufacturer's Guarantee (T&Cs Apply)
  • Pieces in Pack/Case : 1
Product Contents
N/A
Delivery & Returns

DELIVERY

Standard delivery: €15

Free delivery on all orders over €70.00



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RETURNS

Hopefully you won't need to return an item, however, if you do, it is our aim to make this as simple as possible. By following the guidance below you can help us to help you when a product is not what you expected, or is faulty. Your statutory rights are not affected by this guidance.

 

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€68.95 Incl. 20% VAT

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1
Horstmann 425 Tiara Programmer is rated 4.2 out of 5 by 18.
Rated 5 out of 5 by from Compatable replacement. I'm an electrical contractor. I was called to a house that had a Horstmann Diamond programmer built in the 60's which was now sometimes sticking. I Spoke to Horstmann technical who suggested Horstmann 425 Tiara Programmer. What an excellent choice, a breeze to install and all working o.k.. If this one lasts as long as the old Horstmann Diamond, the customer will be well happy. This item was cheaper from Screwfix than any of my electrical wholesalers. Well done Screwfix.
Date published: 2014-07-23
Rated 2 out of 5 by from Horstmann Tiara 425 I was initially quite impressed by this programmer: it seemed to work satisfactorily, and appeared to be good value for money. However, after approx 18 months of operation, I experienced erratic operation of my heating system: domestic hot water (DHW) worked OK, but central heating often failed to start. (My heating system uses a motorised 3 port valve, and both DHW and CH are pumped.) After much investigation, I found that the fault was caused by intermittent closure of the DHW switch, when in the "off" position. I have dismantled the mechanism, and the fault is caused by poorly toleranced plastic in the switch leverage system. I would NOT recommend this product.
Date published: 2013-11-05
Rated 5 out of 5 by from Simples Good basic Programmer Doddle to fit Does what it says on the tin
Date published: 2013-10-05
Rated 5 out of 5 by from Best make of heating control This heating control box was easy to fit and easy to set for programming etc. The price was competitive and prompt delivery.
Date published: 2012-12-25
Rated 4 out of 5 by from HORSTMANN 425 TIARA THIS ITEM WAS DELIVERED VERY PROMPTLY.AS USUAL.IT IS WORKING WELL.AND IT IS VERY EASY TO SET THE PROGRAMMES. ONLY FAULT,THERE ARE NO 'LED' LIGHT INDICATORS,TO SHOW WHEN THE PROGRAMMER IS WORKING.
Date published: 2012-09-24
Rated 5 out of 5 by from suitable replacement initial control was in place at time of initial installment over 20 years ago. so no need to alter type or company. easy to install and ideal .
Date published: 2012-09-07
Rated 5 out of 5 by from Great Timer Fantastic value for money programmer. Easy to fit, all conversion wiring diagrams included. Suitable for most heating systems.
Date published: 2011-10-15
Rated 4 out of 5 by from Horstmann 425 Tiara Programmer In the digital age it is hard to fing an old fashioned electro-mechanical device that is easy for older people to work. This is simplicity itself to program and use and ideal for any technophobe.
Date published: 2011-09-30
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