Heat pump cylinders

uniSTOR cylinder range for heat pumps

  • Complete with three-way valve and adapter making it easier and saving time on install.
  • Comes with unvented kits and expansion vessel
  • Inline front connections, reducing piping issues in smaller, more compact areas

Overview

Performance and reliability are what Vaillant are all about. That’s why our products have been expertly designed and engineered to work to their full potential together. Working in perfect harmony with the Vaillant range of heat pumps, the uniSTOR cylinder range uses state of the art insulation to give the ultimate efficiency.

What's in the range?

  • 150 litre pre-plumbed slimline heat pump cylinder
  • 200 litre pre-plumbed heat pump cylinder
  • 250 litre pre-plumbed heat pump cylinder
  • 300 litre pre-plumbed heat pump cylinder
  • 150 litre standard heat pump cylinder
  • 200 litre standard heat pump cylinder
  • 250 litre standard heat pump cylinder
  • 300 litre standard heat pump cylinder

500 litre and 800 litre cylinders available. For more information please contact your local sales representative.

Specifications

Specifications

Heat pump cylindersUnit 150 litre pre-plumbed uniSTOR200 litre pre-plumbed uniSTOR250 litre pre-plumbed uniSTOR300 litre pre-plumbed uniSTOR150 litre standard uniSTOR200 litre standard uniSTOR250 litre standard uniSTOR300 litre standard uniSTOR
Article number  00202371290020237130002023713100202371320020235271002023527200202352730020235274

Total tank capacity
l
149.2

199

249.8

298.7

149.2

199

249.8

298.7

Actual capacity (with coil)
l
143.05

191.4

240.3

289.2

289.2

191.4

240.3

289.2

Hot water capacity / draw off (EN12897)
l
135

183.2

186.3

230.9

133

183.2

211

208

Outer diameter with insulation

mm

430

595

595

595

595

595

595

595

Net weight empty cylinder
kg
54.5

58

73.3

80.6

38

46

61

67.63

Weight of filled cylinder
kg
193.97

248.7

309.6

354.09

181.8

237.4

301.3

356.83

Insulation
thickness
mm5050505050505050

Standby losses
kWh/24h
1.64

1.22

1.41

1.59

1.0

1.22

1.41

1.59

ErP label
bandCBBBBBBB

Reheat time
(70%)
minutes
14.28

14.22

10.56

7.46

13.93

14.22

10.56

7.46
Heat echanger power / coil rating
kW

20.6

26.0

40.7

50.5

20.8

26.0

40.7

50.5

Primary flow rate

l/h

900

900

900

900

900

900

900

900

Maximum operating DHW temperature

°C

85

85

85

85

85

85

85

85

Maximum operating heat circuit temperature

°C

95

95

95

95

95

95

95

95

Primary heat exchanger
flow & return connection
inch
¾ “

¾ “

¾ “

¾ “

¾ “

¾ “

¾ “

¾ “

Cold & hot water connection
inch
¾ “

¾ “

¾ “

¾ “

¾ “

¾ “

¾ “

¾ “

Temperature sensor sleeve diameter

mm

8

8

8

8

8

8

8

8

Quantity of temperature sensor tubes
 
1

1

1

1

1

1

1

1
Immersion heater boss diameterinch
1 ¼“

1 ¼“

1 ¼“

1 ¼“

1 ¼“

1 ¼“

1 ¼“

1 ¼“

Size supplied expansion vessel
l
12

18

25

25

12

18

25

25

Related Products

Related Products

flexoTHERM 5, 8, 11, 15 and 19kW

Ground source heat pump

  • Available in 5, 8, 11, 15 & 19kW
  • Can connect to three different sources - ground, water or air
  • High seasonal SCoP value
  • Integral components - built in ground and heating circulation pumps and three-way diverter valve

geoTHERM 22, 30, 38, 46kW

Ground source heat pump

  • "Quiet Mark" approved thanks to geoTHERM multi-stage sound insulation
  • Energy yield display
  • MCS accredited, RHI eligible

aroTHERM 5, 8, 11 and 15kW

Air-to-water heat pump

  • Blue fin coated evaporator as standard
  • MCS accredited
  • ErP rated A++
  • 'Quiet Mark' approved

aroTHERM hybrid 5, 8, 11 and 15kW

Air-to-water hybrid heat pump

  • Unique triVAI® intelligent control system
  • Total system solution – Available in an easy to order pack
  • Excellent green credentials
  • Compatible with all boiler systems running on gas, oil or LPG
  • Easy to install and commission

Downloads