
Hyco Manufacturing TMV15 Thermostatic Mixing Valve For Unvented Water Heaters
TMV15
Hyco TMV15 Thermostatic Mixing Valve for Unvented Water Heaters
The Hyco TMV15 Thermostatic Mixing Valve is designed to ensure safe and constant water temperature for unvented water heaters, including the Speedflow and Powerflow units. This valve is ideal for use in various applications such as schools, hospitals, public washrooms, restaurants, and office or commercial kitchens, where maintaining a safe hot water supply is essential for basins, baths, and showers.
- Safe Hot Water Delivery: Delivers safe, regulated hot water to basins, baths, and showers, ensuring comfort and safety in commercial and public environments.
- Ideal for Large Installations: Perfect for use with unvented water heaters, including the Speedflow or Powerflow units, and larger unvented cylinders.
- Easy Installation: Install on the hot outlet of the water heater, with a separate feed from the cold mains supply for efficient operation.
- Precision Plumbing: Must be installed by a suitably qualified professional to ensure proper setup and operation.
- Warranty: Comes with a 1-year parts or replacement warranty, ensuring peace of mind for your installation.
Technical Specification
- Water Connection: - Hot & Cold Inlet: 2 x 15mm compression - Mixed Outlet: 1 x 15mm compression
- Maximum Inlet Temperature: 85°C
- Maximum Inlet Pressure Ratio (H/C or C/H): 5:1
- Minimum Temperature Difference for Fail-Safe: 10°C
- Fittings Required: None (not supplied)
✅ Ensure safe and consistent hot water with the Hyco TMV15 Thermostatic Mixing Valve, perfect for commercial and public installations!

Range | Hyco Powerflow |
Product | Water Heating |
Type | Mixing Valve |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.