HONEYWELL ST799 ** SEND YOUR FAULTY PROGRAMMER FOR EXCHANGE ** 12mths GUARANTEE

webuyanytelly
(1284)
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£109.00
From £9.70 per month for 12 months with *
Condition:
Used
“7 Day Version as Shown + 12 Months Guarantee”
7 available13 sold
People want this. 14 people are watching this.
This one's trending. 13 have already sold.
Pay less? Turn old devices into money with Trade In
Postage:
May not post to United States. Read item description or contact seller for postage options.
Located in: Elgin, United Kingdom
Delivery:
Varies
Returns:
No returns accepted.
Payments:
    Diners Club

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eBay item number:156601708946
Last updated on 10 Oct, 2025 13:18:05 BSTView all revisionsView all revisions

Item specifics

Condition
Used
An item that has been previously used. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or an item that has been returned to the seller after a period of use. See the seller’s listing for full details and description of any imperfections. See all condition definitionsopens in a new window or tab
Seller notes
“7 Day Version as Shown + 12 Months Guarantee”
Brand
Honeywell
MPN
ST799
Programmability
Programmable
Category

Item description from the seller

Seller business information

I certify that all my selling activities will comply with all EU laws and regulations.

About this seller

webuyanytelly

99.3% positive Feedback•3.1K items sold

Joined May 2013
Usually responds within 24 hours
Registered as a business seller
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.8
Reasonable postage cost
4.9
Delivery time
4.9
Communication
4.9

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Seller Feedback (858)

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    • p***1 (66)- Feedback left by buyer.
      Past year
      Verified purchase
      I would give this service double the amount of stars for the service they give good value for money. would recommend to anyone who like us was in need of a quick repair. All went smoothly, communication excellent. Postage work exceptionally well. heating back up an running quicker than we could get a heating engineer for help!
    • t***u (2133)- Feedback left by buyer.
      Past month
      Verified purchase
      Top seller
    • eBay automated Feedback- Feedback left by buyer.
      Past 6 months
      Order delivered on time with no issues
    See all Feedback

    Product ratings and reviews

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    4.8
    12 product ratings
    • 10 users rated this 5 out of 5 stars
    • 2 users rated this 4 out of 5 stars
    • 0 users rated this 3 out of 5 stars
    • 0 users rated this 2 out of 5 stars
    • 0 users rated this 1 out of 5 stars

    Would recommend

    Good value

    Good quality

    Most relevant reviews

    See all 10 reviews
    • by omvXOSn0Qv6@Deleted
      15 Sep, 2016Most favourable review

      Simple Swap to Upgrade to 7 day Programmer

      Used this to upgrade the existing very old Honeywell timer for my Rayburn. Very quick, simple and easy to swap it over - fits the same backplate so very little rewiring required - 10 minute job. Looks much better and works just the same - but now seven days so can economise and set different times for different daily activities and heating/hot water needs. I left the old brown backplate and just painted it to match the wall, so it also looks less ugly/intrusive. Hope it lasts as long (was still working). Excellent price too as I did shop around.

      Verified purchase: YesCondition: NewSold by: heat_supplies

    • by burtouk.jmm2r6j
      27 Jun, 2018

      Honeywell 7 Day Central Heating Programmer

      Replaced a ten year old Honeywell one day programmer where the radiator heating control had failed. Just changed the fascia over leaving mounting box and existing wiring. Early days but working just fine. Prompt delivery. Recommended.

      Verified purchase: YesCondition: NewSold by: discount.heating

    • by ronny_redwood
      30 Nov, 2017

      Great replacement for old Honeywell programmer.

      This is a great replacement for old Honeywell programmer, utilising the same footprint and fitting. Also has the advantage of 7-day programming.

      Verified purchase: YesCondition: NewSold by: discount.heating

    • by andredi2
      15 Oct, 2025

      Excellent value

      New old stock, fresh in original box with papers etc, of this now discontinued unit. Half the price of some other used units

      Verified purchase: YesCondition: NewSold by: plumbathltd

    • by peterw8137
      23 Aug, 2018

      top programmer.

      A well known top brand, easy to set, and use.

      Verified purchase: YesCondition: NewSold by: discount.heating

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