Honeywell Cylinder Thermostat L641A
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Honeywell Cylinder Thermostat L641A

Free Delivery 7 Year Warranty
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  • Free UK Delivery on orders over £100
From £18.80
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The Honeywell L641A cylinder thermostat is designed for surface mounting on domestic hot water cylinders. It can be used to directly switch a wet central heating circulating pump or boiler, or to operate spring return and motor open/motor close zone valves


  • Ideal for general applications
  • Suitable for use on uninsulated and foam lagged cylinders
  • Double insulated
  • Dial or screwdriver slot temperature adjustment
  • Supplied with cylinder strap and hooks



  • Boiler Accessories Boiler Controls
  • Manufacturer Honeywell Controls Ltd
  • Manufacturers Warranty1 Year (Subject to Manufacturers T&C's)
  • Type of control Thermostat
  •  Connection type Wired


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We deliver primarily to the UK Mainland Only, to regular domestic and commercial premises. The standard cut off for dispatching in stock items is usually at 1:00PM although this may vary depending on the nature of your order and seasonal volumes. 

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You have 14 days from the date received to be eligible for returns, your item has to be in the same condition as sent in original packaging and ready for re-sale 

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