Dual Safety Thermostat 18" Product Code: 89445

Dual safety system prevents overheating problems.


Temperature range: 20-70°C. Not for use with Ariston immersion heaters.
Additional Information
Technical Specification
  • Brand : Unbranded
  • Product Length : 18 "
  • Product Type : Dual Safety Thermostat
  • Total Product Weight : 0.07 kg
  • Temperature Range : 20-70 °C
  • Pack Size : 1
  • 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.


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€13.95 Incl. 20% VAT

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Dual Safety Thermostat 18" is rated 4.1 out of 5 by 62.
Rated 4 out of 5 by from This is 17" not 18" Heater Successfully replaced an 18" Pullin with this 17" unit. The head is slightly bigger but it works perfectly OK. It is likely to take a little longer to heat up as it is 17" rather than the 18" as described. The overall height is 18" so the description really needs to be corrected.
Date published: 2018-08-23
Rated 3 out of 5 by from Problem with size Unfortunately the product was difficult to install as the thermostat head was larger than the original.
Date published: 2018-07-10
Rated 4 out of 5 by from Great Solution A stuck thermostat and a cold bath led to an early morning on line review and order of this thermostat. Availability checked ordered, collected and fitted before breakfast. An excellent service, good product and seems reliable.
Date published: 2018-06-09
Rated 4 out of 5 by from good thermostat good quality well made and very reliable with the added bonus of having a reset button
Date published: 2018-05-03
Rated 3 out of 5 by from Wouldn't fit Although the product seems to be well made unfortunately the head of this particular unit was considerably larger than the one it was to replace so wouldn't fit. Probably a good idea to take the existing one along to screwfix to compare it with the new one when buying. It's unfair to comment on reliability etc but also don't think it's fair to mark it down, the fitment issue maybe due to and old emmersion heater.
Date published: 2018-03-09
Rated 5 out of 5 by from Clearly marked temperature Bought to replace a faulty thermostat that stopped turning off at set temperature. Was pleased to see this one had a clear temperature scale and appeared to be of better quality than the original. The head of the unit was slightly larger and the neutral terminal of the heating element had to be slightly bent over to allow the thermostat to fully sit in position.
Date published: 2018-02-22
Rated 4 out of 5 by from Perfect job, good price I had planned to replace the whole immersion heater until my curiosity got me to measure the resistance of the immersion element which was ok, (3Kw should be around 20 ohms). Fitted this new dual safety 18" stat in 5 mins and we were up and running. A cheaper and quicker result than replacing the whole immersion. Well pleased.
Date published: 2018-01-19
Rated 1 out of 5 by from Poor This item has been redesigned but still bears the same part number and some problems of the old model, the body is not bigger but the Sensor tube is now offset more and fouling the heater terminal thus having to bend the terminal risking breaking it, also as with the previous models Max setting is just under 60 degrees c, anymore and and they keep tripping the overtemp stat and reducing the life, so only consider has a limited life product.
Date published: 2017-10-06
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