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Weldless HERMS Coil Kit 30cm BSP

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Weldless HERMS Coil Kit 30cm BSP
Excl. Tax: €10.00 Incl. Tax: €12.12

Price as configured: Excl. Tax: €0.00 Incl. Tax: €0.00

Availability: Out of stock

Stainless steel HERMS coil kit with threaded fittings. Very easy to install, with O-ring seal on inside and outside of the kettle.



Our stainless steel HERMS coils are very easy to install in your own kettle. You only have to make two 21mm holes with a hole punch.

We custom designed the fittings for this coil, with the following in mind:

  • Once installed, the O-ring is completely hidden and protected by the stainless steel.
  • The O-ring has 20% compression and 20% free goove volume, for a good seal and a long life span.
  • The fitting is very sleek on the inside of the kettle.
  • The fitting is easy to install.
  • The length of the thread is 3/4 inch, so after adding the locknut, you still have enough length for a ball valve or camlock fitting.

The fittings are mounted onto the coil with a hydraulic press at the factory. This is watertight and very strong. 100% guaranteed: if the fitting leaks, you will get a 100% refund.

This kit also comes with custom face sealing locknuts: they have the exact same O-ring groove as the fitting for a double secure seal!

Our 30cm coil is the perfect size for a 35-44 cm kettle. For a kettles above 45cm, we recommend our 40 cm coil.


Coil diameter 30 cm
Coil height 20 cm
Tube length: 11.3 m
Tube outer diameter: 12 mm
Tube inner diameter 11 mm
Material: SS304 stainless steel
Fittings: 1/2" BSP
O-rings: Food grade silicone


 Please see the Mashing page for a video demonstration of installing the coil.