Purpose-built for domestic water heating, the Satchwell 11″ thermostat provides safe and dependable regulation up to 100°C. Its extended sensing probe offers accurate control in deep water tanks, ensuring efficient heating and automatic shut-off.
Benefits and Features of the Satchwell 11″ Thermostat
Precise Temperature Control: Automatically regulates up to 100°C
Long Probe Design: 11″ length ideal for larger geysers and deeper tanks
High Safety Rating: 20A current capacity for secure electrical operation
Spiral Element Compatible: Engineered for use with spiral-type elements
Trusted Quality: SABS approved for compliance and safety assurance

How to Use This Thermostat Effectively
Before Installation:
Ensure the geyser is disconnected from the power supply.
Confirm compatibility with the spiral heating element and tank depth.
Installation Steps:
Remove old thermostat if present and insert the Satchwell unit into the thermostat pocket.
Connect electrical terminals securely according to manufacturer’s instructions.
Reconnect the power and test for proper operation.
After Installation:
Regularly inspect for signs of corrosion or wear
Keep temperature setting appropriate to household needs (typically around 60°C–65°C)
Best Use Cases
Domestic geysers using spiral elements
Replacement for 11-inch thermostats in standard Satchwell-compatible systems
Upgrades for better temperature accuracy in older tanks
Related Products
- Unitherm Straight Geyser Element with Thermostat Pocket
- Unitherm Straight Geyser Element 3KW with Thermostat Pocket
- Unitherm 3KW Spiral Geyser Element
Health & Safety
Installation must be performed by a qualified technician. Disconnect all power before fitting or replacing the thermostat. Ensure the unit is not used beyond rated voltage or current. Confirm compatibility with your geyser’s element and pocket dimensions.
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