The Telford Tempest Pre-Plumbed Cylinder for Samsung is a factory-assembled, duplex stainless-steel unvented hot water cylinder with a 50-litre integrated buffer vessel built into the same cased unit. It is supplied pre-plumbed and pre-wired specifically around Samsung air source heat pump controls and hydraulics, so the pipework, valves, pump and control wiring that would normally take an installer a full day to fit and commission are already assembled at the factory before the cylinder leaves Telford.
Because the 50L buffer is built into the cylinder casing rather than supplied as a separate external tank, this Tempest range removes the need for a second vessel, extra pipework runs and additional plant-room floor space. The buffer volume gives the Samsung heat pump the hydraulic separation and system water content it needs to avoid compressor short-cycling, while stabilising flow through defrost cycles.
The range is available in 170L, 200L, 250L and 300L nominal hot water capacities, all sharing the same 50L buffer volume, the same pre-plumbed Samsung control package, and the same Duplex 2304 stainless-steel construction — so the right size can be chosen purely on household hot water demand.
Duplex 2304
Stainless Steel
12 Bar
Max Supply Pressure
Please Note
This cylinder is pre-plumbed specifically for Samsung air source heat pumps and is supplied with a Samsung control box and wired controller as standard. Confirm compatibility with your specific Samsung EHS/mono outdoor unit before ordering — this is not a universal heat pump cylinder.
Pre-Plumbed & Pre-Wired
Factory-fitted 28mm pipework, valves and control wiring significantly reduce on-site installation time and first-fix labour compared with building the same system from loose components.
Integrated 50L Buffer
A built-in 50-litre buffer store improves system water volume, protects the Samsung compressor against short-cycling, and stabilises flow during defrost cycles — with no separate buffer tank or extra pipe runs required.
Heat Pump Optimised Coil
A large-surface-area coil is purpose-designed for low-temperature heat pump flow, maximising heat transfer efficiency from the Samsung outdoor unit into the stored water.
Samsung Control Package
Supplied with a Samsung control box and wired controller (MIM-E03EN), pre-mounted and pre-wired for direct integration with compatible Samsung heat pump systems.
Pre-Wired 3-Port Diverter Valve
A factory-wired 3-port diverter valve manages DHW and heating priority automatically, without the need for a separate wiring centre.
Duplex Stainless-Steel Vessel
The inner vessel is manufactured from Duplex 2304 stainless steel, offering corrosion resistance beyond that of standard grades, with a lifetime warranty on the inner container.
Grundfos Secondary Pump
A Grundfos circulating pump (approx. 7.5m head) is fitted on the secondary circuit to maintain correct flow through the cylinder and heating system.
Mains-Pressure Hot Water
The unvented design delivers high-flow, mains-pressure domestic hot water, suitable for modern bathrooms and multiple simultaneous outlets.
Capacity & Dimensions (All Sizes)
Nominal Capacity
170L / 200L / 250L / 300L (see size table below)
Buffer Store Volume
50L (all sizes)
Height
1850mm / 1860mm / 1778mm / 2040mm
Diameter
510mm / 554mm / 580mm / 580mm
Empty Weight
91kg / 100kg / 110kg / 122kg
Full Weight
257kg / 298kg / 357kg / 417kg
Construction
Inner Vessel Material
Duplex 2304 stainless steel
Casing Finish
White steel cased, fully insulated
Coil Type
316L stainless steel, heat pump optimised
HP Coil Surface Area
2m² (170L) / 3m² (200L, 250L, 300L)
Performance
Standing Heat Loss
1.94 / 1.97 / 2.11 / 2.28 kWh/24hrs
Standing Loss (Watts)
81W / 82W / 88W / 95W
ErP Energy Rating
C (all sizes)
Pressure & Electrical
Max Supply Pressure
12 bar
Max Operating Pressure
3 bar
Immersion Heater Rating
3kW @ 240V
T&P Relief Valve
1/2" 7 bar factory-fitted
Connections
Heat Pump Flow/Return
28mm
Heating Circuit Valves
28mm 2-port (x2) and 28mm 3-port diverter
Pre-Installed Components
Control Package
Samsung control box and wired controller (MIM-E03EN)
Diverter Valve
28mm 3-port valve, factory-wired
Secondary Pump
Grundfos circulating pump, approx. 7.5m head
Immersion Heater(s)
3kW Incoloy immersion heater(s), factory-fitted
Safety & Control
Automatic air vents, tundish, stat pockets, filling loop, pressure gauge
Warranty & Origin
Inner Vessel Warranty
Lifetime (manufacturer terms and registration apply)
Components Warranty
2 years
Manufactured
Made in Britain
Product Code
Nominal Capacity
Buffer Volume
Height
Diameter
Full Weight
TSMI170/50/HP/PP/SAM
170L
50L
1850mm
510mm
257kg
TSMI200/50/HP/PP/SAM
200L
50L
1860mm
554mm
298kg
TSMI250/50/HP/PP/SAM
250L
50L
1778mm
580mm
357kg
TSMI300/50/HP/PP/SAM
300L
50L
2040mm
580mm
417kg
Important Safety Information
Installation must be carried out by a Gas Safe / competent unvented cylinder installer in accordance with Building Regulations Part G3, using the factory-fitted expansion, relief valve and tundish arrangement supplied. The Samsung control package must be commissioned in line with the outdoor unit manufacturer's system design requirements.
What size Tempest Pre-Plumbed cylinder do I need?
Sizing depends on household occupancy and hot water demand. The 170L and 200L models suit smaller households or properties with limited plant-room space, while the 250L and 300L models suit larger homes or higher simultaneous hot water demand. All four sizes share the same 50L buffer volume and Samsung control package.
Does this cylinder work with any Samsung heat pump?
It is factory pre-plumbed and pre-wired around Samsung air source heat pump controls and hydraulics, including a Samsung control box and wired controller (MIM-E03EN). Confirm compatibility with your specific Samsung EHS/mono outdoor unit model before ordering.
Do I still need a separate buffer tank?
No. The 50-litre buffer store is fully integrated into the cylinder casing, so no external buffer vessel, extra pipework, or additional plant-room space is required.
What does 'pre-plumbed' actually include?
The cylinder is supplied with the 28mm heat pump pipework, 2-port and 3-port valves, Grundfos secondary pump, immersion heater(s), automatic air vents, tundish and filling loop already factory-fitted and wired, reducing on-site installation to final connections and commissioning.
What warranty does the cylinder carry?
The inner stainless-steel vessel carries a lifetime warranty (subject to Telford terms and product registration), with a 2-year warranty on components such as valves, the pump and controls.
Where is the cylinder manufactured?
The Tempest range is Made in Britain by Telford.
