The Cotherm TSDH1107 immersion heater thermostat is designed for use with 11-inch immersion heaters, providing accurate temperature regulation and reliable control of hot water cylinder heating systems. Rated at 20A, it ensures safe switching of electrical load while maintaining consistent water temperature performance.
Thermostats are essential components in immersion heating systems, controlling when the element heats and preventing overheating of stored water. The TSDH1107 model is engineered for dependable operation under standard domestic and commercial conditions, helping maintain efficient hot water delivery. Over time, thermostats can become inaccurate or fail due to electrical wear, scale exposure, or prolonged use, leading to inconsistent heating or system faults. Replacing a faulty thermostat restores correct temperature control, improves efficiency, and ensures safe system operation. Installation should always be carried out by a suitably qualified professional in accordance with electrical regulations.
Key Features & Benefits
Technical Specifications
|
Specification |
Detail |
|
Part Number |
TSDH1107 |
|
Brand |
Cotherm |
|
Component Type |
Immersion Heater Thermostat |
|
Rating |
20A |
|
Compatibility |
11 Inch Immersion Heaters |
|
Application |
Hot Water Cylinders |
Electrical Deals Direct now sells a wide range of spare parts. If you cannot see the item you require on our website, please call 01934 253600 or email [email protected] for more information.
| MPN | TSDH1107 |
|---|---|
| Product Code | EDDCOTHERM09 |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Cotherm |
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 Cotherm TSDH1107 immersion heater thermostat is designed for use with 11-inch immersion heaters, providing accurate temperature regulation and reliable control of hot water cylinder heating systems. Rated at 20A, it ensures safe switching of electrical load while maintaining consistent water temperature performance.
Thermostats are essential components in immersion heating systems, controlling when the element heats and preventing overheating of stored water. The TSDH1107 model is engineered for dependable operation under standard domestic and commercial conditions, helping maintain efficient hot water delivery. Over time, thermostats can become inaccurate or fail due to electrical wear, scale exposure, or prolonged use, leading to inconsistent heating or system faults. Replacing a faulty thermostat restores correct temperature control, improves efficiency, and ensures safe system operation. Installation should always be carried out by a suitably qualified professional in accordance with electrical regulations.
Key Features & Benefits
Technical Specifications
|
Specification |
Detail |
|
Part Number |
TSDH1107 |
|
Brand |
Cotherm |
|
Component Type |
Immersion Heater Thermostat |
|
Rating |
20A |
|
Compatibility |
11 Inch Immersion Heaters |
|
Application |
Hot Water Cylinders |
Electrical Deals Direct now sells a wide range of spare parts. If you cannot see the item you require on our website, please call 01934 253600 or email [email protected] for more information.
| MPN | TSDH1107 |
|---|---|
| Product Code | EDDCOTHERM09 |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Cotherm |
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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