Horstmann HRFS1 Programmable Room Thermostat Product Code: 93829

Electronic sensing element. Wireless. Override facility.


  • Digital Display
  • 5 On/Off Periods per Day
  • 5 / 2 Day Programmable
  • 2 Year Manufacturer's Guarantee
  • Frost Protection
  • Wireless
  • Override Facility
  • 2 Year Manufacturer's Guarantee (T&Cs Apply)


Switch/contact rating: SPDT. IP30. 8A. Temp. range: 10°-35°C. H x W x D: 116 x 100 x 23.5mm. 2 x AA batteries supplied. 60m straight line transmitter range.
Additional Information
Technical Specification
  • Brand : Horstmann
  • Product Height : 116 mm
  • Display Type : Digital Display
  • Product Type : Room Thermostat
  • Programme Facility : 5/2 Day Programmable
  • Central Heating Control Type : Thermostats
  • Total Product Weight : 0.22 kg
  • Model No : HRFS1
  • Product Width : 100 mm
  • Temperature Range : 10-35 °C
  • Product Depth : 23.5 mm
  • Pack Size : 1
  • Switch Type : SPDT
  • Manufacturer Guarantee : 2 Year Manufacturer's Guarantee (T&Cs Apply)
  • Pieces in Pack/Case : 1
Product Contents
Delivery & Returns


Standard delivery service up to 3 working days: €8.95

Free delivery on all orders over €70.00

Click here to see information on our delivery service



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

€79.95 Incl. 23% VAT

Add to Wishlist

More Items to Consider

Loading... Loading...
Horstmann HRFS1 Programmable Room Thermostat is rated 4.1 out of 5 by 93.
Rated 5 out of 5 by from Great but why no wall bracket? Super wireless thermostat but my only gripe is that I would like to keep the sensor unit mobile and a wall clip or bracket would be extreamly useful as it would allow you to mount the sensor in the ideal thermostat position and still allow you to move it as required. It comes with a folding base where you have to find a high shelf to site it or screw it permanently to the wall.
Date published: 2017-10-29
Rated 5 out of 5 by from Good for the money Bought this when my old one packed in. Easy to install comby in the loft picked up the signal first time not to bad to program once you get your head around it well worth the money.
Date published: 2016-01-22
Rated 3 out of 5 by from Be careful how you install it Good enough product, but unlike similar products from Sunvic and Towerstat the programmer only transmits on change of status. i.e. when the monitored temperature rises above the target temperature, or falls below it, in the first case turning the receiver off and in the second turning it on. Therefore, if the power supply to the receiver is interrupted whilst the transmitter is calling for heat, the receiver will never turn on. Other products solve this problem by periodically retransmitting their htg on/off status. Only install where uninterrupted power is guaranteed.
Date published: 2015-11-27
Rated 1 out of 5 by from Just wouldn't work Fitted one in place of the wall mounted mechanical thermostat. It would only work if the control was placed next to the receiver, tried a replacement but was just the same. Spoke to the Horstmann tech. help & tried a few things but still couldn't get it to work unless control was almost touching receiver. Tried turning off WIFI, cordless phones but still no range. Value would have been 5 stars if it worked as it was on promotion, can only give 1 star for everything as I couldn't get it working to give it a proper review.
Date published: 2015-11-23
Rated 5 out of 5 by from It solved the problem My mother’s central heating was controlled by Honeywell Y6630D Wireless Room Thermostat with Honeywell ST9100C1006 7 day time switch the latter on constant and the thermostat was altered on going to bed however mother was complaining both too cold and too hot where care workers had not set correct temperature or hall was different temperature to rooms. I fitted the Horstmann HRFS1 Programmable Room Thermostat and left it free standing so it can be moved room to room however since now set with 17°C at night and when house unoccupied and 21°C when mother is up in the house it has not moved from living room and when mother was asked if too cold or hot answer was I have not thought about it. Clearly it has worked A1. With 5 settings per day and every day independent it did take some time to set up. There are 4 dip switches which allow different options it took me around 2 hours although I am sure if I had all tools to hand it would have been faster, time includes testing and house was at 27°C when I started so took two hours to cool to temperature wanted.
Date published: 2015-10-30
Rated 5 out of 5 by from Simple to install/program This was a pretty straight forward piece of kit to install, it's been in a couple of weeks with no problem. The only slight issue I had was getting it to operate in manual mode (It always reverts to program when a time period rolls round). This doesn't matter for me but I could see it being a pain for somebody who is just after direct temperature control. Great value for money though, looks neat and seems durable.
Date published: 2015-03-23
Rated 1 out of 5 by from Inaccurate & sluggish Tried this in a small two-bedroom appartment and large four-bedroom house. First complaint is that the six programmes have to be set up independently for each day of the week, no copy function. It only displays temperature to 0.5C and controls to +-0.5C at best. The unit is very slow to respond to changes in room temperature which results in a large over-swing of 2C or more, even in the large house. The smaller thermal load in the appartment resulted in a larger over-swing and a shiver-and-sweat cycle. Dumped it after a couple of days testing at each location and installed a much cheaper wireless unit from a different source having 0.1C reading and switching resolution which gives much better control. It is also more user-friendly to set up and operate and has the facility to calibrate the temperature sensor.
Date published: 2015-03-03
Rated 5 out of 5 by from Best wireless room stat I've s Had two Drayton wireless stats that were useless as the signal dropped out almost daily regardless of where they were sited. Bought this as a replacement and has never dropped the signal, not even when battery was low. Only slight niggle is awkward battery changing but first lot lasted nearly two years so not really a problem. Buy it! Worked at many addresses with all sorts of stats but this is the best in my opinion.
Date published: 2015-02-26
  • y_2017, m_11, d_24, h_2
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.3
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_93
  • loc_en_IE, sid_93829, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix-ie