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Introduction
Congratulations on your purchase of a Heatrae Sadia Megaflo Solar unvented water
heater. The Megaflo Solar is manufactured in the UK from top quality materials and
meets all the latest relevant safety and constructional standards. The high grade
Duplex stainless steel cylinder offers exceptional strength and corrosion resistance
which is backed by a 25 year guarantee. Its performance and insulation levels exceed
the latest requirements of Building Regulation Part L.
The Megaflo Solar unvented water heater can be fed directly from the cold water
mains supply to the property without the need for separate feed cisterns or vent pipes.
It is supplied complete with all the necessary inlet and safety controls, electric immer-
sion heater(s) and, for units fitted with an auxiliary heating coil, a cylinder thermostat,
thermal cut-out, 2-port motorised valve and wiring centre.
Generally its pressure and flowrate performance will far exceed that from a compara-
ble vented system, thermal store, multipoint instantaneous gas heater or combination
boiler.
Diagram 1 - Schematic installation details
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