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UK Mainland Only,
3pm cut-off for Highlands and Islands


 

Express delivery for Friday Available Until 4pm Today
UK Mainland Only,
3pm cut-off for Highlands and Islands


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Horstmann H21 XL Series 2 Channel.Plus

Brand: Horstmann
HCO Code: 07B00
Price: £54.07
Ex VAT: £45.06
Stock: In Stock
Qty:  
   - OR -   
Q: Can this be used to replace Horstmann 424 Diamond

A: Yes it can. A backplate change it needed (a new one is included), but it will connect to the same wires.
Q: Is the H21XL a direct replacement for a Honeywell ST1000 controller?

A: Yes it is.
Q: I have a 425 Tiara and the clock has stopped working. Will an H21 XL Series 2 fit straight onto the backplate or is a change of backplate needed?

A: It will fit straight onto the backplate for an easy swap.
Q: we have a 425 tiara that is still in good working condition, but would like to update to digital. will the horstmann H21 Xl fit our old back plate so that we don't have to change the wiring at all

A: Yes it would.
Q: I have an old H525 that needs replacing. It has been fitted virtually touching a power point on its RHS (plenty of room on LHS). Will the new one fit?

A: Assuming you mean your right (as you look at it), rather than the programmers right (as it looks at you), then yes.

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Directly replaces earlier H21 / H21XL

* Complete with new backplate
* 2 Channel 24 Hour Programmer
* 5 Year manufacturers warranty
* Large easy to follow LCD display
* Backlit display (on button press)
* Pre-Set clock
* Automatic Winter/Summer time changes
* Gravity or Fully Pumped system setting
* Up to 3 on/offs per channel in each 24-hour operation
* Holiday programme suspends programme for upto 30 days
* 1 or 2 hour boost and advance on each channel
* Mains powered with battery backup
* Voltage free
* Dimensions: 101x163x33mm HxWxD
* Same backplate as Horstmann 425 and 5 series programmers

 

Replaces (same backplate and wiring for easy changeover):
Honeywell ST1501 ST1000
Horstmann H525 H425 Tiara Diadem.
Newlec NL425T NLH21

Compatible alternatives with same backplate & wiring:
Horstmann H27XL - 7 Day version of H21XL

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Heating Controls Online is rated 4.90 stars by Reviews.co.uk based on 2083 merchant reviews

4.90 / 5 Rating
2083 Reviews
Prompt delivery and straight switch over with the old, failed part.
I saved nearly £25 and the item was delivered the following day for a very reasonable price.
First time buying from this retailer. Purchase went smoothly without any problem. Very quick delivery. Worth a recommendation from me.