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Product Details

• Large clear display - ideal for visually impaired
• 4 daily, independent time and temperature pairs
• Screen lock capability
• Frost protection
• Volt free
• Temperature range 5-45°C
• Holiday mode programme

Technical Specification
Brand Sunvic
Colour by dominance White
Manufacture ID 2227051
Delivery details
Order value: Under £10 £10 & over
Express usually Next Business Day before 6pm £5 Free
Turbo usually Next Business Day before 12 noon £10 £5
Remote areas standard delivery (2-4 days) £5 Free
Order Value: Under £25 Over £25 but less than £75 £75 & Over
£10 £5 Free

Please note items delivered by our suppliers are not available for the options above. Delivery times may vary.

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Click & Collect details
If you are using our Click & Collect service please note the following:
  • Order online or over the phone and collect in branch from 5 minutes later.
  • Ensure you check stock is available for collection at your chosen branch.
  • Check branch opening hours to ensure you have sufficient time to collect.
  • For items not available for same day collection, place order before 8pm Mon-Sat (4pm Sun) and you can collect Next Business Day (Mon-Fri) after 3pm.
  • If we have your mobile number, we’ll send you a text when your order is ready to collect.
Sunvic SunStat Room Thermostat Wire Free is rated 4.1 out of 5 by 8.
Rated 4 out of 5 by from A good product marred by poor documentation The Sunvic Sunstat Room Thermostat is well packaged and has an excellent user interface. I particularly like the use of the thumbwheel to select the days of the week or "Start" (I don't know why it is "Start" and not "Run"). It is very simple to programme and there is simple procedure for copying one day's programme to any other day. There are four time periods available and some jolly symbols appear on the large clear LCD display, to tell you whether the period is getting up in the morning, being out at work, coming back for the evening or bedtime. The LCD is back illuminated whilst any programming changes are being made. It is simple to install. The case opens and separates into two parts, after loosening a single, easily accessible screw. The back part is screwed to the wall and has an entry hole for the cable. There is a well-made terminal block for attaching the live and switched live wires, which for safety is then covered by a plastic plate secured by a screw. Two AA size batteries are supplied. As a wired controller is works exactly as one would expect. Now for the negatives: The installation and user instructions are some of the poorest I have seen. They appear to be simply laser printed A4 sheets with minimal diagrams. I would expect to see an overall diagram of the unit, with the individual controls and displays indicated, but there isn't one. There is what appears to be an ON/OFF button, but this isn't mentioned. The installation instructions refer to a jumper on the circuit board that allows the user to set various parameters, such as how many times the boiler is allowed to turn over an hour, or the hysteresis (dead band) in the switching, but this doesn't appear to make any difference. The instructions claim that an installer can reduce the hysteresis to 1.5C (minimum), but if the jumper is set so the user can do this, then the hysteresis can be reduced to 0.5C. The display shows the measured temperature with a resolution of 0.1C. However, considering this, the unit seems surprisingly inaccurate. I also bought the wireless version of this product and, putting the two units side-by-side gave a difference of 2C. I have also compared the reading with a known accurate mercury-glass scientific thermometer. The Sunstat was reading nearly 2C too low. The instructions mention a "Calibrate" feature, which allows the user to tweak the reading, in case the thermostat is mounted in an abnormally warm of cold part of the room. Given the fundamental inaccuracy of the unit, this seems pretty pointless. In summary, the unit works well and I am very happy with it. The manufacturers should improve the installation and user manuals and there is plenty of scope for this. As far as the accuracy issues are concerned, well I am a picky professional electronics engineer who has designed items like this in the past. Provided you set the thermostat to make you feel comfortable, rather than rely absolutely on its temperature reading then anyone should be very happy with this product.
Date published: 2017-11-10
Rated 2 out of 5 by from Faulty Room Thermostat I purchased the item, and found that the time even after resetting was not maintained correctly. I complained to the manufacturer, and was informed that it probably had a faulty chip in it, and to exchange it. The replacement was no better.
Date published: 2017-10-08
Rated 4 out of 5 by from Simple to install and program I have fitted a number of these and never had a problem. The only slight negative is that they are a bit big and prominent on a flat wall
Date published: 2017-04-17
Rated 4 out of 5 by from Clear display After installation it took a while to achieve appropriate temperatures, the reading is 2 deg lower than previous stat (can be adjusted ,but why?). I miss the 6 programme states of old, but will get used to the 4. It would be a good addition to have the set temperature displayed. Saving grace is the clear display & easy programming.
Date published: 2017-03-07
Rated 5 out of 5 by from Large display, great value I have installed a few of these, and have not had any problems. The display is very good, the unit is easy to set-up, and I think it's currently the best value wireless programmable thermostat.
Date published: 2017-02-21
Rated 5 out of 5 by from Excellent customer service! I didn't know what I would be getting with the thermostat I wanted to buy, but Rachel decided that the only way was to open the box and get all the bits out - brilliant idea; and she knew what they did and where to connect them!
Date published: 2017-02-12
Rated 5 out of 5 by from Straightforward Simple to install and very easy to programme and use.
Date published: 2017-01-27
Rated 4 out of 5 by from Very easy to setup I bought it to control my towel radiators easy set up great for the job no problems.
Date published: 2016-12-06
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