Horstmann 425 Tiara Programmer

Product Code: 18470
Horstmann 425 Tiara Programmer
Product Code: 18470
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

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.
€37.45 Incl. 20% VAT
Add to Wishlist

Additional Information
Technical Specification
  • Brand : Horstmann
  • Product Height : 112 mm
  • Product Type : Programmer
  • Programme Facility : 24 Hour Programmable
  • 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
  • Pieces in Pack/Case : 1
Product Contents
N/A
Delivery & Returns

DELIVERY

Standard delivery: €15

Free delivery on all orders over €70.00



Click here to see information on our delivery charges and times

 

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.

 

Click here to see information on returns and cancellation


More Items to Consider

More Items to Consider

Loading... Loading...
1
Horstmann 425 Tiara Programmer is rated 4.3 out of 5 by 40.
Rated 4 out of 5 by from Horstmann Tiara 25 The Horstmann Tiara 25 timer packed up after many years of trouble free service so I needed a quick replacement, so power off, undo two screws and pulled off timer front then replaced with new one, two screws tightened, power on and we were back to trouble free heating and hot water. Screwfix click and collect proved excellent and they offered the cheapest price therefore they come well recommended
Date published: 2015-04-11
Rated 4 out of 5 by from Horstmann 425 Generally a very simple to use CH programmer. Don't make the mistake of model types if you want the neon 'on' 'off' indicators which are not on this model. The step forward is a very useful function although the step numbers are difficult to see if you are installing for someone who may not have good vision.
Date published: 2015-01-17
Rated 5 out of 5 by from basic timer I bought and fitted this timer for my mother ,who is 75 years old.i know if I bought an all singing all dancing timer I would be round at her house every day showing her how to use it and what each button did.she doesn't need a 5/2 day timer or one that knows when you're on holiday.its simple it does the job
Date published: 2014-12-19
Rated 4 out of 5 by from Ok programmer A basic non digital programmer for people that don't like setting digital over complicated timers.will suit the old that have basic boiler/ pump central heating systems.
Date published: 2014-12-14
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 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 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
  • y_2016, m_12, d_5, h_22
  • bvseo_bulk, prod_bvrr, vn_bulk_0.0
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_40
  • loc_en_GB, sid_18470, prod, sort_[SortEntry(order=AGE, direction=DESCENDING)]
  • clientName_screwfix-ie