Strom SEIH21K3PTS1 Touchscreen Instantaneous Water… (3962P)

£ 329.99INC VAT

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Strom SEIH21K3PTS1 Touchscreen Instantaneous Water Heater 21kW (3962P)

For Technical advice please call 0333 344 2474. This product requires a 3 phase electrical supply and will be unsuitable for most domestic installations. We are unable to ship to Northern Ireland and offshore addresses. Please consult with Strom for guidance on flowrates as this will vary by application.

3-phase commercial water heater provides on-demand instantaneous hot water with good flow rates at multiple outlets across a commercial site. Glossy IMD splashproof cover. Utilises an enclosed loop heating system, with a multi-layer heating chamber reducing limescale build-up. Directly set and maintain output temperature automatically, using the large widescreen LED display with touch controls. Displays output temperature and target temperature. Provides information on power and water consumption and has an automatic fault detection with on-screen feedback.

  • Suitable for Commercial Use
  • Wall-Mounted
  • Manual Temperature Control
  • ABS Body
  • Mains-Powered
  • Overheat Protection
  • 1 Year Guarantee
Energy Rating A

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View all: Strom Water Heaters

£329.99INC VAT

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Can this be used for domestic purposes replacing a hot water cylinder?

Asked by: VortexFX
Hi. Thank you for taking interest in our product. The Strom 21kw instantaneous water heater could be used for replacing a hot water cylinder, however we would not recommend this product as it is built mainly for commercial purposes, this product would require 3 phase electric which is uncommon in most UK households.
Answered by: Strom Limited Genius
Date published: 2021-09-22
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Advisory Notice This device will deliver approximately 10Ltr/min at an increase of 30°C to the incoming mains cold temperature. Flow rates higher than this will achieve a lower output temperature.
Body Material ABS Body
Brand Strom
Connection Type G 1/2"
Energy Rating A
Fixings Supplied Fixings Supplied
IP Rating IP25
Manufacturer Guarantee 1 Year Guarantee
Max. Flow Rate 12 Ltr/min
Maximum Bar Pressure 6.0 bar
Min. Flow Rate 2 Ltr/min
Minimum Bar Pressure 0.2 bar
Model Name/No SEIH21K3PTS1
Mount Type Wall-Mounted
Overheat Protection Overheat Protection
Pack Size 1
Pieces in Pack/Case 1
Power Output (Watts/Kw) 21 kW
Power Type Mains-Powered
Power Voltage Supply 400 V
Product Depth 86 mm
Product Height 385 mm
Product Type Touchscreen Instantaneous Water Heater
Product Width 260 mm
Suitable System Suitable for Commercial Use
Temperature Control Type Manual Temperature Control
Temperature Range 30-55 °C
Thermal Cut Out Temperature 90 °C
Total Product Weight 6.1 kg
Water Entry Points Bottom Only
Water Heater Application Universal
Water Heater Location Oversink
Water Heater Product Type Electric Water Heaters

Product contents

Water heater and mounting bracket kit.

Delivered direct from our suppliers in the number of working days stated on the delivery button

Direct from our supplier delivery restrictions

Geographic restrictions apply, check your postcode below to see if any apply to you. For some locations delivery may take longer than the specified delivery time, and we can not currently offer delivery to offshore addresses.

Please ensure we have your mobile phone number when you order so we can keep you updated with deliveries.


Please note - If you wish to return this item you will need to call us on our freephone number 03330 112 112 to arrange a free collection.

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