Ariston 691216 Thermostat | Replacement Spare Part
- SKU
- EDDARISTONSPARE11
Our Expert's Opinion
"Designed for compatible Ariston hot water cylinders and heating systems."Ariston 691216 Thermostat | Genuine Replacement Spare Part
The Ariston 691216 is a genuine OEM 11" immersion thermostat (TBS 300 65/75) designed as a direct replacement for a wide range of Ariston unvented hot water cylinders. Manufactured to Ariston's exact specifications, this thermostat regulates water temperature by switching off the heat source once the set temperature is reached — protecting your cylinder and ensuring consistent, efficient hot water delivery.
Compatible with an extensive range of Ariston Classico, Contract, Comfort, Primo and ProTECH unvented cylinder models, the 691216 is the trusted choice for homeowners and heating engineers seeking a guaranteed-fit, genuine spare part. Also referenced under the alternative part number 691218.
Key Features & Benefits
- Genuine OEM part — guaranteed fit and performance with no compatibility issues
- 11" immersion thermostat — precise temperature regulation for unvented cylinder systems
- Automatic cut-off — switches off heat source at set temperature to prevent overheating
- Wide model compatibility — fits Classico, Contract STD/STI, Comfort, Primo and ProTECH ranges
- Alternative part number 691218 — direct replacement for both references
- Durable construction — built to Ariston's quality standards for long service life
- Easy installation — direct replacement requiring no modifications
- Backed by Ariston's quality assurance and manufacturer's guarantee
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 691216 |
| Alternative Part Number | 691218 |
| Brand | Ariston |
| Type | Immersion Thermostat (TBS 300 65/75) |
| Length | 11" |
| Compatible Models | Classico, Contract STD/STI, Comfort ProTECH, Primo, Super Bravo + others |
| Application | Unvented hot water cylinders |
| Part Status | Genuine OEM |
This is a genuine Ariston spare part supplied directly from the manufacturer. We ensure full compatibility, reliable performance and the highest quality standards.
| MPN | 691216 |
|---|---|
| Product Code | EDDARISTONSPARE11 |
| Part Origin | Compatible |
| Part or Accessory? | Part |
| Brand | Ariston |
Delivery Information -
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.
Gledhill Cylinders – Delivery Charge -
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.
Returns Information -
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.
Ariston 691216 Thermostat | Genuine Replacement Spare Part
The Ariston 691216 is a genuine OEM 11" immersion thermostat (TBS 300 65/75) designed as a direct replacement for a wide range of Ariston unvented hot water cylinders. Manufactured to Ariston's exact specifications, this thermostat regulates water temperature by switching off the heat source once the set temperature is reached — protecting your cylinder and ensuring consistent, efficient hot water delivery.
Compatible with an extensive range of Ariston Classico, Contract, Comfort, Primo and ProTECH unvented cylinder models, the 691216 is the trusted choice for homeowners and heating engineers seeking a guaranteed-fit, genuine spare part. Also referenced under the alternative part number 691218.
Key Features & Benefits
- Genuine OEM part — guaranteed fit and performance with no compatibility issues
- 11" immersion thermostat — precise temperature regulation for unvented cylinder systems
- Automatic cut-off — switches off heat source at set temperature to prevent overheating
- Wide model compatibility — fits Classico, Contract STD/STI, Comfort, Primo and ProTECH ranges
- Alternative part number 691218 — direct replacement for both references
- Durable construction — built to Ariston's quality standards for long service life
- Easy installation — direct replacement requiring no modifications
- Backed by Ariston's quality assurance and manufacturer's guarantee
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 691216 |
| Alternative Part Number | 691218 |
| Brand | Ariston |
| Type | Immersion Thermostat (TBS 300 65/75) |
| Length | 11" |
| Compatible Models | Classico, Contract STD/STI, Comfort ProTECH, Primo, Super Bravo + others |
| Application | Unvented hot water cylinders |
| Part Status | Genuine OEM |
This is a genuine Ariston spare part supplied directly from the manufacturer. We ensure full compatibility, reliable performance and the highest quality standards.
| MPN | 691216 |
|---|---|
| Product Code | EDDARISTONSPARE11 |
| Part Origin | Compatible |
| Part or Accessory? | Part |
| Brand | Ariston |
Delivery Information -
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.
Gledhill Cylinders – Delivery Charge -
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.
Returns Information -
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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