Fully automatic controls; hot water at the pre-set temperature throughout 24 hrs a day; no need to fire or extinguish the burner; convenient thermostat setting at the fingertips; non-pressurised and pressurised (inlet water) models available; internal jacket and multi flue gas pipes baffle design for quick heating and energy saving; eco-friendly burner, low NOx design; anti-corrosive, high temperature resistant inner coating; economic and efficient operation; safety protection system; energy efficient thermal insulation – 100 kg/m' density – 50 mm thick rockwool LRB insulation; stainless steel cladding; sacrificial anode (magnesium rod that protects the tank from corrosion); hydrostatic and pneumatic tested pressure vessels; inner construction of heavy standard steel material; and temperature and pressure relief valve available, if required.