Hyco Speedflow Unvented Water Heater - 15L - 1.2kW - SF15K12

The Hyco Speedflow SF15K12 is a 15-litre unvented undersink water heater designed to provide insta...

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BradfordsHyco 15L Unvented Water Heater 1.2kW Steel Tank for Kitchen and Office
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Product Information

Full details

The Hyco Speedflow SF15K12 is a 15-litre unvented undersink water heater designed for individuals and businesses needing instant hot water in areas without a central hot water supply, such as cloakrooms, small kitchens, or office washrooms. Its primary benefit is providing reliable mains-pressure hot water via a compact 1.2kW unit, though users should note that the 15-litre capacity is best suited for light use cases like handwashing or quick dishwashing rather than heavy-duty requirements.

All features

Model Part NumberSF15K12
BrandHyco

Extended Product Information

FAQs

Can I use this with any tap?

Yes, it is designed to work with standard taps and mixer taps, provided the system pressure is within the specified 0.5 to 4.2 bar range.

Does it require a special electrical circuit?

The unit is rated at 1.2kW, which is relatively low, but it should be installed in accordance with local electrical regulations; consult a professional electrician regarding your specific installation needs.

How long does it take to heat up?

Heat-up time depends on the incoming water temperature and the desired output temperature, but as a 1.2kW unit, it is designed for continuous recovery rather than rapid heat-up.

Is this unit vented or unvented?

The Hyco Speedflow SF15K12 is an unvented water heater, meaning it operates at mains pressure.

What is the primary maintenance requirement?

Keep the area around the unit clean and dry, periodically check connections for signs of leaks, and ensure the thermostat is set correctly for your needs.

Can I install this in a shed?

It can be installed in outbuildings, provided the area is protected from extreme conditions and the unit is not subjected to freezing temperatures (though it does include frost protection).

Troubleshooting

No hot water output

Check that the electrical power supply is active and the unit is switched on. Verify the thermostat is set to an appropriate temperature.

Low water pressure

Ensure the water supply valves are fully open and check that the inlet pipe is not kinked or blocked. Verify that the incoming mains pressure meets the 0.5 bar minimum.

Water dripping from the valve

Unvented units may discharge small amounts of water during the heating process due to thermal expansion. If dripping is continuous, consult a qualified plumber.

Pros and Cons

Pros

  • Compact undersink design saves space
  • Compatible with standard mixer taps
  • Simple external temperature adjustments
  • Integrated frost protection for added safety
  • Robust glass-lined tank for longevity

Cons

  • 15L capacity may be limited for heavy usage
  • Requires specific pressure range (0.5 to 4.2 bar)
  • Professional installation highly recommended
  • 1.2kW rating means slower reheat times compared to higher-wattage units

Setup, Compatibility & Care

Installation of the SF15K12 should be carried out by a competent person familiar with plumbing and electrical safety standards. Ensure the unit is installed in an upright position in an area where the weight can be supported when full.

  1. Compatibility: Verify that your mains water pressure falls within the 0.5 to 4.2 bar range.
  2. Taps: The unit is compatible with most standard taps, including mixer taps, provided they are rated for the system's pressure.
  3. Care: Periodically check the unit for any signs of leaks or corrosion. The external casing can be wiped down with a damp, non-abrasive cloth. If the unit is left unused for long periods, consider utilizing the frost protection setting or isolating the power if recommended by a professional plumber.

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