Telford Tempest Indirect Unvented Pre-Plumbed Heat Pump Cylinder with 50 Litre Buffer
Delivery Estimate: 10-15 Working Days
SKU : TSMI170/50/HP/PP
Made to order
For faster shipment, please pay via BACS. This option is available at checkout.
The Telford Tempest Indirect Unvented Pre-Plumbed Heat Pump Cylinder with 50 Litre Buffer is a factory-assembled unvented hot water cylinder for use with an air source heat pump as the main heat source. It arrives with pre-fabricated pipework and wiring already fitted, so installation time on site is reduced and the layout stays consistent from one job to the next.
The inner cylinder is manufactured in the UK from duplex stainless steel, with a white steel case and a 50 litre integrated buffer store. A large-surface-area coil is designed to transfer renewable heat into the stored water efficiently. The cylinder is supplied with a remote expansion vessel and wall-mounting bracket, a full unvented kit, factory-fitted 3 kW immersion heaters for back-up heat, and 316L grade stainless steel 22 mm compression fittings.
Key features
- Factory pre-plumbed pipework and wiring
- Integrated 50 litre buffer store
- Duplex stainless steel inner cylinder with a white steel case
- High-efficiency coil for use with a heat pump
- Remote expansion vessel with factory-fitted wall bracket
- Full unvented kit supplied
- Factory-fitted 3 kW Incoloy immersion heater(s) for back-up heat
- Factory-fitted temperature and pressure relief valve set at 7 bar / 90°C
- Maximum operating pressure 3 bar; maximum supply pressure 12 bar
- 316L stainless steel 22 mm compression fittings and coils
- Insulated to reduce standing heat loss
- Lifetime manufacturing warranty on the inner container (2 years on components), as stated by Telford
As shown on Telford’s technical data sheet, the factory assembly includes a 22 mm hot water draw-off, 22 mm inlet control group, wiring centre, high-limit stat, domestic hot water sensor pocket, filling loop with gauge, 28 mm heat pump return, 28 mm magnetic heat pump filter, 28 mm 3-port diverter valve, heating circulation pump, tundish, air vent and 3 kW immersion heaters.
Technical specification
| Specification | 170 L | 200 L | 250 L | 300 L |
|---|---|---|---|---|
| Official product code | TSMI170/50/HP/PP | TSMI200/50/HP/PP | TSMI250/50/HP/PP | TSMI300/50/HP/PP |
| Nominal capacity | 170 L | 200 L | 250 L | 300 L |
| Height | 1315 mm | 1430 mm | 1780 mm | 2020 mm |
| Diameter | 580 mm | 580 mm | 580 mm | 580 mm |
| Internal buffer store | 50 L | 50 L | 50 L | 50 L |
| Standing heat loss | 1.94 kWh/24h | 1.85 kWh/24h | 2.00 kWh/24h | 2.22 kWh/24h |
| Standing loss | 81 W | 77 W | 83 W | 92 W |
| ErP rating | C | C | C | C |
| Coil surface area | 2 m² | 3 m² | 3 m² | 3 m² |
| Empty weight | 79 kg | 88 kg | 98 kg | 110 kg |
| Full weight | 247 kg | 282 kg | 344 kg | 404 kg |
| Max supply pressure | 12 bar | 12 bar | 12 bar | 12 bar |
| Max operating pressure | 3 bar | 3 bar | 3 bar | 3 bar |
| Immersion heater | 3 kW @ 240 V | 3 kW @ 240 V | 3 kW @ 240 V | 3 kW @ 240 V |
Specification is taken from Telford’s official Tempest pre-plumbed heat pump tank-on-tank data sheet. SKUs follow Telford’s official product codes. The 150 litre official size is not offered on this listing.
