TESY Hot Water Cylinder Horizontal Electric 50L / 80L / 100L / 120L
TESY BiLight Horizontal Unvented Electric Hot Water Cylinders (50L – 120L)
Optimise space in lofts, eaves, and tight enclosures with European-manufactured TESY BiLight Horizontal Unvented Electric Water Cylinders. Designed to connect directly to your mains cold water supply, these high-output 3000W horizontal units deliver rapid, pressurised hot water with up to 16% higher thermal efficiency than standard water heaters.
Key Technical Features
Glass-Ceramic Tank Coating: Advanced interior lining ensuring high corrosion resistance and hygienic water storage.
INSUTECH Thermal Insulation: Specialised TESY insulation that eliminates thermal bridges between the tank and wall bracket to minimise heat loss.
Piston Effect Technology: Controls incoming cold water velocity to maximise continuous hot water delivery.
BiLight LED Display: Dual-colour visual indicator provides instant status feedback when water reaches target temperature.
Built-in Safety System: Includes adjustable thermostat, anti-freeze protection, thermal cut-off switch, and ON/OFF control.
Technical Specifications & Sizing Guide
| Capacity | Suitable For | Power | Warm-Up Time | Hot Water Run Time | Dimensions (W x Dia) |
| 50 Litre | 2 People | 3000W | 1h 18m | 14 Mins | 803mm x 353mm |
| 80 Litre | 3 People | 3000W | 2h 08m | 24 Mins | 855mm x 440mm |
| 100 Litre | 4 People | 3000W | 2h 36m | 27 Mins | 995mm x 440mm |
| 120 Litre | 5 People | 3000W | 3h 08m | 36 Mins | 1160mm x 440mm |
Important Installation & Regulatory Notice
UK Building Control Regulations Compliance: Unvented hot water cylinders require installation by a qualified technician. Pipework requires a safety expansion vessel (5–7L) and a pressure relief valve in accordance with UK regulations. Units must be hardwired into a fused spur or circuit breaker and are not suitable for standard 13A plug sockets.
Delivery & Support
Wall Mounting: Heavy-duty attached wall brackets included (fixing screws not included).
Highlands & Islands Delivery: A £40.00 delivery surcharge applies to postcodes starting with BT, IM, TR, GY, JE, HS, and ZE.
Technical Advice: Call our UK support team on 0161 439 1400 for sizing or technical guidance