Product code: 100788 Category:

About this product

Telford Tempest heat pump hot water storage cylinders are designed for use with an air source heat pump as the main heat source. They feature a purpose-designed coil with a large surface area to allow maximum heat transfer of renewable energy into the stored water.

Manufactured from Duplex stainless-steel, the cylinders are pre-plumbed with pre-fabricated pipework, wiring, a 50 litre integrated buffer and factory-fitted 3kW immersion heaters to provide back-up heat.

Key features

Remote expansion vessel with factory-fitted wall mounting bracket

Full unvented kit supplied

Pre-plumbed with pre-fabricated pipework and wiring saves installation time

Duplex stainless steel provides superior corrosion resistance

White steel cased finish (other colours available on request)

316L grade stainless-steel 22mm compression fittings and coils

Supplies mains pressure hot water and high flow rates

Fast reheat

Factory-fitted temperature and pressure relief value set at 7 bar / 90°C

Up to 3 bar max pressure

Highly efficient

Fully insulated to minimise any heat loss

Factory-fitted 3kW immersion heater(s)

Integrated 50 litre buffer store

Cylinders available in 170-300 litre capacities

Lifetime manufacturing warranty on inner container (2 years on components)*

Downloads

Specifications

Height (mm)
1325
Diameter (mm)
580
ASHP Coil Surface Area (m²)
2.2
ERP Rating
C
Immersion Rating (kW)
3
Standing Heat Loss (kWh/24hrs)
1.36
Height (mm)
1550
Diameter (mm)
580
ASHP Coil Surface Area (m²)
3.3
ERP Rating
C
Immersion Rating (kW)
3
Standing Heat Loss (kWh/24hrs)
1.64
Height (mm)
1800
Diameter (mm)
580
ASHP Coil Surface Area (m²)
3.3
ERP Rating
C
Immersion Rating (kW)
3
Standing Heat Loss (kWh/24hrs)
1.71
Height (mm)
2050
Diameter (mm)
580
ASHP Coil Surface Area (m²)
2.2
ERP Rating
C
Immersion Rating (kW)
3
Standing Heat Loss (kWh/24hrs)
1.82

Technical diagram

Telford Tempest Air Source Heat Pump Cylinder

Supplied with

22mm monobloc reducer & relief valve*

External expansion vessel with bracket

TPRV 7bar/90°C*

15-22mm acetal tundish*

Cylinder stat*

10 way junction box*

22mm two port valve*

22mm three port valve*

25/8m Wilo circulating pump and ISO valves*

Automatic bypass valve*

Dual probe thermostat

Temperature & pressure relief valve*

3kW Incoloy immersion heater(s)*

Inlet control group

Filter

Sanitary water kit

*Factory-fitted

Product code: 100788 Category:

Telford Tempest Air Source Heat Pump Cylinder

Product code: 100788 Category:

About this product

Telford Tempest heat pump hot water storage cylinders are designed for use with an air source heat pump as the main heat source. They feature a purpose-designed coil with a large surface area to allow maximum heat transfer of renewable energy into the stored water.

Manufactured from Duplex stainless-steel, the cylinders are pre-plumbed with pre-fabricated pipework, wiring, a 50 litre integrated buffer and factory-fitted 3kW immersion heaters to provide back-up heat.

Key features

Remote expansion vessel with factory-fitted wall mounting bracket

Full unvented kit supplied

Pre-plumbed with pre-fabricated pipework and wiring saves installation time

Duplex stainless steel provides superior corrosion resistance

White steel cased finish (other colours available on request)

316L grade stainless-steel 22mm compression fittings and coils

Supplies mains pressure hot water and high flow rates

Fast reheat

Factory-fitted temperature and pressure relief value set at 7 bar / 90°C

Up to 3 bar max pressure

Highly efficient

Fully insulated to minimise any heat loss

Factory-fitted 3kW immersion heater(s)

Integrated 50 litre buffer store

Cylinders available in 170-300 litre capacities

Lifetime manufacturing warranty on inner container (2 years on components)*

Downloads

Specifications

Height (mm)
1325
Diameter (mm)
580
ASHP Coil Surface Area (m²)
2.2
ERP Rating
C
Immersion Rating (kW)
3
Standing Heat Loss (kWh/24hrs)
1.36
Height (mm)
1550
Diameter (mm)
580
ASHP Coil Surface Area (m²)
3.3
ERP Rating
C
Immersion Rating (kW)
3
Standing Heat Loss (kWh/24hrs)
1.64
Height (mm)
1800
Diameter (mm)
580
ASHP Coil Surface Area (m²)
3.3
ERP Rating
C
Immersion Rating (kW)
3
Standing Heat Loss (kWh/24hrs)
1.71
Height (mm)
2050
Diameter (mm)
580
ASHP Coil Surface Area (m²)
2.2
ERP Rating
C
Immersion Rating (kW)
3
Standing Heat Loss (kWh/24hrs)
1.82

Technical diagram

Telford Tempest Air Source Heat Pump Cylinder

Supplied with

22mm monobloc reducer & relief valve*

External expansion vessel with bracket

TPRV 7bar/90°C*

15-22mm acetal tundish*

Cylinder stat*

10 way junction box*

22mm two port valve*

22mm three port valve*

25/8m Wilo circulating pump and ISO valves*

Automatic bypass valve*

Dual probe thermostat

Temperature & pressure relief valve*

3kW Incoloy immersion heater(s)*

Inlet control group

Filter

Sanitary water kit

*Factory-fitted

Product code: 100788 Category:

Telford Tempest Air Source Heat Pump Cylinder

Product code: 100788 Category:

Telford Tempest Air Source Heat Pump Cylinder

Payment methods we accept

Free next working day delivery over £300

Wholesale enquiries

If you would like more information on our range of Poolstar products, including Poolex Spawer heat pumps, Holl's saunas, NetSpa ice baths and Formidra showers, you can talk to our team on 01284 658770 or send us an email.

We are proud to be the official UK & Ireland Poolstar distribution partner.

View the Poolstar 2025-2026 Catalogue - pdf (73Mb)

Sales and technical help

Our sales team is more than happy to advise with product selection, wholesale enquiries and provide technical advice.

While our servicing team is on hand to help with servicing and after sales.

01284 658770

Mon to Fri 9am to 5pm /out-of-hours voicemail

Product code: 100788 Category:

About this product

Telford Tempest heat pump hot water storage cylinders are designed for use with an air source heat pump as the main heat source. They feature a purpose-designed coil with a large surface area to allow maximum heat transfer of renewable energy into the stored water.

Manufactured from Duplex stainless-steel, the cylinders are pre-plumbed with pre-fabricated pipework, wiring, a 50 litre integrated buffer and factory-fitted 3kW immersion heaters to provide back-up heat.

Key features

Remote expansion vessel with factory-fitted wall mounting bracket

Full unvented kit supplied

Pre-plumbed with pre-fabricated pipework and wiring saves installation time

Duplex stainless steel provides superior corrosion resistance

White steel cased finish (other colours available on request)

316L grade stainless-steel 22mm compression fittings and coils

Supplies mains pressure hot water and high flow rates

Fast reheat

Factory-fitted temperature and pressure relief value set at 7 bar / 90°C

Up to 3 bar max pressure

Highly efficient

Fully insulated to minimise any heat loss

Factory-fitted 3kW immersion heater(s)

Integrated 50 litre buffer store

Cylinders available in 170-300 litre capacities

Lifetime manufacturing warranty on inner container (2 years on components)*

Downloads

Specifications

Height (mm)
1325
Diameter (mm)
580
ASHP Coil Surface Area (m²)
2.2
ERP Rating
C
Immersion Rating (kW)
3
Standing Heat Loss (kWh/24hrs)
1.36
Height (mm)
1550
Diameter (mm)
580
ASHP Coil Surface Area (m²)
3.3
ERP Rating
C
Immersion Rating (kW)
3
Standing Heat Loss (kWh/24hrs)
1.64
Height (mm)
1800
Diameter (mm)
580
ASHP Coil Surface Area (m²)
3.3
ERP Rating
C
Immersion Rating (kW)
3
Standing Heat Loss (kWh/24hrs)
1.71
Height (mm)
2050
Diameter (mm)
580
ASHP Coil Surface Area (m²)
2.2
ERP Rating
C
Immersion Rating (kW)
3
Standing Heat Loss (kWh/24hrs)
1.82

Technical diagram

Telford Tempest Air Source Heat Pump Cylinder

Supplied with

22mm monobloc reducer & relief valve*

External expansion vessel with bracket

TPRV 7bar/90°C*

15-22mm acetal tundish*

Cylinder stat*

10 way junction box*

22mm two port valve*

22mm three port valve*

25/8m Wilo circulating pump and ISO valves*

Automatic bypass valve*

Dual probe thermostat

Temperature & pressure relief valve*

3kW Incoloy immersion heater(s)*

Inlet control group

Filter

Sanitary water kit

*Factory-fitted