10 Best Best Hot Water Cylinder Thermostat - May 2026

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Last Updated: 27-05-2026

Alternative to Honeywell L641A1039 Cylinder Thermostat (Single)

Unvented Components Europe

9.8

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ESI - Energy Saving Innovation Controls ESCTS Hot Water Cylinder Thermostat

ESI - Energy Saving Innovation Controls

9.6

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Best Value

Tower Flue Components PCS Pipe Cylinder Thermostat

Tower TFC Group

9.5

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Alternative to Honeywell L641A1039 Cylinder Thermostat (Twin Pack)

Unvented Components Europe

9.2

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Tesla T-Smart Hot Water Cylinder Thermostat +14 inch Titanium Immersion Heater TIHTS572

T-Smart

9.1

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Honeywell L641A1039 Cylinder Thermostat by Honeywell

Honeywell

8.8

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Spares2go PCS TPS1 Type Hot Water Cylinder Tank or Pipe Thermostat + Stat Strap

Spares2go

8.6

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RM Cylinders Spare Dual Thermostat

RM Cylinders

8.4

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Tesla T-Smart Hot Water Cylinder Thermostat +27 inch Incoloy 2 1/4" Immersion Heater TIHTS650

Generic

8.2

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Alternative to Honeywell L641A1039 Cylinder Thermostat (Four Pack)

Unvented Components Europe

8.1

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