Flomasta 25902SX Two Channel Programmer Product Code: 3439G

2-channel programmer for heating and hot water. Factory-set clock.


  • 7-Day Programmable
  • 3 On/Off Periods per Day
  • Digital Display
  • Advance, Boost & Holiday Functions
  • 3 Pre-Set Programmes
  • 1 Year Guarantee


. Switch/contact rating: 3A. Temperature range: . W x D x H: 145 x 35 x 92mm. Fits standard UK backplate.
Additional Information
Technical Specification
  • Brand : Flomasta
  • Product Height : 92 mm
  • Product Type : Two Channel Programmer
  • Zoning Level : Up to Two
  • Central Heating Control Type : Programmers
  • Model No : 25902SX
  • Product Width : 145 mm
  • Product Depth : 35 mm
  • Pack Size : 1
  • Compatible Boiler Type : System Boilers
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 1
Product Contents
Delivery & Returns


Standard delivery: €15

Free delivery on all orders over €70.00

Click here to see information on our delivery charges and times



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

€32.95 Incl. 20% VAT

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Flomasta 25902SX Two Channel Programmer is rated 3.7 out of 5 by 19.
Rated 2 out of 5 by from THERE'S BETTER Easy to fit but a total pain to program. There are much easier programmers on the market that take far less time to program. I would not recommend this programmer.
Date published: 2017-08-16
Rated 5 out of 5 by from Replacing my programmer was a When my central heating programmer packed in, I realised from the reviews that it was an easy swap for a new one, and indeed it was. Just slotted on to the existing base plate and jobs-a-good'ne. No need for an engineer and call out charges. The fact that it is pre-programmed in the factory, it was up and running as soon as I turned the power back on. The time & date needed setting, which was dead easy, and the factory settings can be reviewed when I have a few minutes.
Date published: 2017-07-26
Rated 5 out of 5 by from Program of success Dead easy to fit (standard bg back) if you are replacing. I happened to repacing a like for like unit that had been in my mothers house for Over twenty years!! It's easy for her to use it, so it must be good. Here's to another twenty years trouble free operation.
Date published: 2017-04-20
Rated 3 out of 5 by from Just works! Super easy to fit, dirt cheap.. Programmer is a little fiddly. The lid can push buttons when closing, but thats not really an issue as you only open it to program anyway. Works miles better than the broken one it replaced.
Date published: 2017-03-04
Rated 5 out of 5 by from Best product It's very easy to instal this programmer. Just unscrew my old (different type and model) and I can instal new one on the same rack. Menu very easy and clear. I'm very happy because I didn't expect that in this price I will get fantastic and easy to use programmer. What can I say? Screwfix all the time will surprise you :-)
Date published: 2017-01-13
Rated 1 out of 5 by from Flimsy Front cover very flimsy. Easy to accidentally push the buttons located underneath. Not suitable for older people. No screen back light.
Date published: 2016-12-28
Rated 1 out of 5 by from 2 Units, both developed faults Purchase to replace and old mechanical programmer. Unit has nice large LCD, although could do with a backlight depending on where you install it. Our first unit lasted 2 weeks, before half the display stopped working. No details were being displayed on screen anymore, the only remedy being to turn the unit off from the mains... Screwfix kindly replaced the unit for another, however that unit had a LCD that did not display anything unless you applied pressure to the screen itself. In the end screwfix refunded me for the product, and I have selected the Drayton LP522 instead. I will avoid the flowmasta in future and don't recommend it to others.
Date published: 2016-06-23
Rated 2 out of 5 by from fiddly programmer This is one to avoid.The one i got would not even mate to the backplate.The black buttons get triggered when you open and close the flap,absolute nightmare.
Date published: 2016-05-09
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