EHC Neptune 250L Indirect Unvented Stainless Steel Cylinder Manifolds allowing it to be scheduled

allowing it to be scheduled to run during off-peak tariff periods

in normal daily use the cylinder maintains temperature and only partial reheating occurs — the M8's smaller volume means far less energy is required to maintain the target temperature

The UPM3 FLEX AS uses an ECM (electronically commutated motor) and runs at variable speed via PWM control

The 3/4" male connections on the boiler require tightening to form a watertight seal

high-precision temperature sensor designed for underfloor heating and cooling systems

EHC Neptune 250L Indirect Unvented Stainless Steel Cylinder Manifolds allowing it to be scheduledEHC Neptune Indirect Unvented Stainless Steel Cylinder 120300L The EHC Neptune Indirect Unvented Stainless Steel Cylinder range (120L, 150L, 180L, 210L, 250L, 300L) is a premium, high performance hot water storage solution built from Duplex stainless steel for excellent corrosion resistance and long service life. Designed for use with unvented system boilers, it delivers safe, efficient mains pressure hot water with fast recovery and low heat loss for