HERMS COILS are installed in the Hot Liquor Tank of a 3-vessel brewing system. It is used to restore or impart heat into the mash by pumping the liquid from the mash tun through the HERMS coil. The HLT water is maintained at a few degrees higher than the desired mash temperature. While this type of system can be direct fired on a burner, temperature control is much more practical when the HLT is heated electrically and regulated by a precise temperature controller.

This particular NPT based kit includes the 1/2" Male NPT to compression adapters required to install a HERMS coil into a kettle with welded NPT full couplings. The compression nuts on the fittings must be loosened to remove the coil from the fittings.

The large coil featured here is adequate for kettle sizes from 15 to 50 gallons.

Product Specifications

50' x 1/2"

304 Stainless Steel

1/2" NPT Male x 1/2" Compression adapters (2)


As with all Spike components, we typically stock a limited supply and may opt to drop ship directly from Spike. If you want to pick this up at the store, call ahead to check stock.