1.Polyethylene insulation with a fabric casing can be used if polyurethane insulation is not suitable. 2.Tanks are designed for high pressure that direct connection to mains pressure water supply is permitted.
3.Direct connection of copper coil HE to mains pressure water supply is permitted.
4.In most regions,only locally approved heating elements can be used.The heating element port can be custom made as required to suit any sized element.(Female thread-located in top of tank).A sample of the heating element will need to be provided before tanks are manufactured in order to confirm thread.