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Flomasta Cylinder Thermostat 230V Product Code: 6803K

Electro-mechanical sensor. Surface-mounted to all cylinder types. Includes fittings for all hot water cylinders. Can be used as a pipe thermostat.


  • Suitable for Domestic Central Heating
  • Surface-Mounted
  • Electro-Mechanical Sensor
  • 1 Year Guarantee
  • Suitable for Domestic Central Heating


Switch/contact rating: 15 (2.5)A. Temperature range: 20-90°C. W x D x H: 38 x 55 x 98mm.
Additional Information
Technical Specification
  • Brand : Flomasta
  • Product Height : 98 mm
  • Product Type : Cylinder Thermostat
  • Insulation Type : Double-Insulated
  • Central Heating Control Type : Thermostats
  • Product Width : 38 mm
  • Temperature Range : 20-90 °C
  • Product Depth : 55 mm
  • Pack Size : 1
  • Suitable System : Suitable for Domestic Central Heating
  • Power Voltage Supply : 230 V
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 1
  • Mount Type : Surface-Mounted
  • Sensor Type : Electro-Mechanical Sensor
Product Contents
Cylinder themostat, fixings and pipes.
Delivery & Returns


Standard delivery service up to 3 working days: €8.95

Free delivery on all orders over €70.00

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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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€16.95 Incl. 23% VAT

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Flomasta Cylinder Thermostat 230V is rated 4.4 out of 5 by 14.
Rated 2 out of 5 by from Dangerously mis-described The specification called it "double insulated", but the product doesn't bear the standard symbol, there is an earth screw, and the Instructions say it must be earthed. It was easier for me to run an earth cable than to return it for refund and wait for a replacement, but some users might be tempted not to bother earthing it, especially if replacing a better-known, double-insulated make and model. As a non-double-insulated thermostat, it is not good value.
Date published: 2019-07-18
Rated 5 out of 5 by from job done replaced a quite old and unreliable one. very easy to install and works a treat.
Date published: 2019-06-27
Rated 5 out of 5 by from easy as pie Bought to replace a very old thermostat which had become very hit and miss. Replaced in about 10mins and it has completely solved my hot water problems
Date published: 2019-05-26
Rated 3 out of 5 by from Great Great product,easy to fit and at this price you can't go wrong
Date published: 2019-04-17
Rated 5 out of 5 by from Big Easy Dial I bought this as it has a nice big easy to see and easy to use dial for the temperature setting. Ideal for me with dodgy eyes. A no brainer. Fitted it in seconds... quite simple... but if in doubt seek electricians assistance. Works nicely. Great value.
Date published: 2019-02-22
Rated 5 out of 5 by from Perfect replacement The Flomasta Thermostat it was the perfect replacement for my old one. It fit perfectly in the same position and he take only 10-15 minute to instal it. Very easy to use and clear numbers on him. I will recommend.
Date published: 2019-01-23
Rated 4 out of 5 by from Right part right price Hot water to hot needed new tank thermostat this part did the job at a great price
Date published: 2018-12-26
Rated 5 out of 5 by from Excellent I purchased this thermostat (2wks) ago received it on the (11/10/18) due to a local delivery service that cept it in storage for (14days) only for the intervention of an excellent member of the support staff putting a track on its whereabouts it would have been lost. Many thanks to the staff member for her excellent support. I fitted the thermostat and works perfectly, it’s well designed very easy to wire the instructions are easy to follow, wired and fitted in (20min) I highly recommend the purchase of this thermostat, well done ScrewFix for selling an excellent product. (PK)
Date published: 2018-10-12
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