
The Tesla TS230 Dual Safety Thermostat (18") is a high-performance replacement thermostat designed for immersion heaters in deeper domestic hot water cylinders. Featuring both precise temperature control and an independent overheat safety cut-out, this unit ensures efficient operation while maintaining essential system protection.
This dual thermostat regulates the immersion heater by monitoring water temperature and cycling the element on and off to maintain the desired setting. In addition, the built-in secondary safety thermostat automatically disconnects power if temperatures exceed safe limits, protecting the cylinder and heating element from overheating.
With its extended 18-inch probe length, the TS230 is ideal for use in large or high-capacity cylinders where shorter thermostats may not accurately measure water temperature. The longer probe ensures more precise sensing deeper within the tank, improving overall temperature consistency and system efficiency.
Engineered for reliability and durability, the TS230 is suitable for both replacement and upgrade applications, restoring safe and consistent hot water control.
Key Features:
Model: Tesla TS230
Type: Dual safety immersion heater thermostat
Probe Length: 18 inches
Function: Temperature control and overheat protection
Dual thermostat system – control + independent safety cut-out
Adjustable temperature settings
Ideal for deep and high-capacity cylinders
Reliable, durable construction
Installation: Qualified electrician or competent installer recommended
Applications:
Deep domestic hot water cylinders
Replacement thermostat for long immersion heaters
Systems requiring enhanced safety protection
Suitable for vented and compatible unvented systems
Why Choose an 18" Dual Safety Thermostat:
The extended probe length offers superior performance in larger systems:
Accurate temperature sensing deep within the cylinder
Ideal for use with long immersion heaters (e.g. 27")
Improved temperature consistency throughout the tank
Enhanced safety with independent overheat cut-out
This is a genuine Tesla spare part supplied directly from the manufacturer. We ensure full compatibility, reliable performance and the highest quality standards.
| MPN | TS230 |
|---|---|
| Product Code | EDDTESLA46 |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Tesla |
Standard delivery for all orders over £150 ex-VAT are free of charge.
If we can speed this up, we will, but you can also select Express Delivery when you check out and get your purchase more quickly (usually the next working day, subject to a 1pm cut-off): there is an extra charge for this ranging from £5 to £29.99 depending on the products you are buying.
We partner with several of the best UK carriers (such as TNT, Royal Mail, DPD etc) depending on the type of product and the warehouse it is coming from, and also with some pallet companies for larger items. All of these operate during normal Monday – Friday working hours, and we expect all deliveries to arrive in 5 days. For more details checkout this page.
For all Gledhill Cylinders, a flat delivery charge of £33.00 (ex-VAT) applies, regardless of order value or delivery method. This will be added automatically at checkout.
Having to return a product because it doesn’t fit, or is not what you wanted, is really annoying! To try and make sure this isn’t necessary we have lots of helpful advice on our site, and you should feel free to call our experts on the number above to check if you are in any doubt at all – we’re always happy to help.
But if you do, don’t worry, just contact us and we’ll get it sorted (note that for trade customers there may be a restocking fee). If you need it, we can usually arrange the carrier to pick it up.
For full details of our policy, check out the small print here.
The Tesla TS230 Dual Safety Thermostat (18") is a high-performance replacement thermostat designed for immersion heaters in deeper domestic hot water cylinders. Featuring both precise temperature control and an independent overheat safety cut-out, this unit ensures efficient operation while maintaining essential system protection.
This dual thermostat regulates the immersion heater by monitoring water temperature and cycling the element on and off to maintain the desired setting. In addition, the built-in secondary safety thermostat automatically disconnects power if temperatures exceed safe limits, protecting the cylinder and heating element from overheating.
With its extended 18-inch probe length, the TS230 is ideal for use in large or high-capacity cylinders where shorter thermostats may not accurately measure water temperature. The longer probe ensures more precise sensing deeper within the tank, improving overall temperature consistency and system efficiency.
Engineered for reliability and durability, the TS230 is suitable for both replacement and upgrade applications, restoring safe and consistent hot water control.
Key Features:
Model: Tesla TS230
Type: Dual safety immersion heater thermostat
Probe Length: 18 inches
Function: Temperature control and overheat protection
Dual thermostat system – control + independent safety cut-out
Adjustable temperature settings
Ideal for deep and high-capacity cylinders
Reliable, durable construction
Installation: Qualified electrician or competent installer recommended
Applications:
Deep domestic hot water cylinders
Replacement thermostat for long immersion heaters
Systems requiring enhanced safety protection
Suitable for vented and compatible unvented systems
Why Choose an 18" Dual Safety Thermostat:
The extended probe length offers superior performance in larger systems:
Accurate temperature sensing deep within the cylinder
Ideal for use with long immersion heaters (e.g. 27")
Improved temperature consistency throughout the tank
Enhanced safety with independent overheat cut-out
This is a genuine Tesla spare part supplied directly from the manufacturer. We ensure full compatibility, reliable performance and the highest quality standards.
| MPN | TS230 |
|---|---|
| Product Code | EDDTESLA46 |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Tesla |
Standard delivery for all orders over £150 ex-VAT are free of charge.
If we can speed this up, we will, but you can also select Express Delivery when you check out and get your purchase more quickly (usually the next working day, subject to a 1pm cut-off): there is an extra charge for this ranging from £5 to £29.99 depending on the products you are buying.
We partner with several of the best UK carriers (such as TNT, Royal Mail, DPD etc) depending on the type of product and the warehouse it is coming from, and also with some pallet companies for larger items. All of these operate during normal Monday – Friday working hours, and we expect all deliveries to arrive in 5 days. For more details checkout this page.
For all Gledhill Cylinders, a flat delivery charge of £33.00 (ex-VAT) applies, regardless of order value or delivery method. This will be added automatically at checkout.
Having to return a product because it doesn’t fit, or is not what you wanted, is really annoying! To try and make sure this isn’t necessary we have lots of helpful advice on our site, and you should feel free to call our experts on the number above to check if you are in any doubt at all – we’re always happy to help.
But if you do, don’t worry, just contact us and we’ll get it sorted (note that for trade customers there may be a restocking fee). If you need it, we can usually arrange the carrier to pick it up.
For full details of our policy, check out the small print here.
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