Quite simply, a very high quality laser welded stainless steel vessel, manufactured to the highest standards.  The Amazon MK2 allows quick installation of the expansion vessel by screwing directly into the top of the cylinder, or if preferred this can be installed into the cold supply as standard. The use of an expansion vessel instead of an internal bubble, overcomes the problems of regularly recharging the bubble to avoid dripping discharge pipes.

Water Inlet Control assembly with filter and back feed protection, Immersion Heaters, Tundish, and Expansion Vessel  are  supplied loose for site installation.

DIRECT ELECTRIC AMAZON MK2
Unit sizes and details are as follows:

Inlet Pressure Reducing Valve set at:    3 bar
Temperature & Pressure Relief:  7 bar   90°C
Expansion Relief:  6 bar

Other options include:

• Fitted Immersion Heaters, Controller & Wiring
• Expansion Vessel within Casing (see MK1)

These are aimed at minimizing the efforts of the installer on site

Water Inlet Control assembly with filter and back feed protection, Immersion Heater, Combined Cylinder & Overheat Thermostat, Boiler Cut-Off Valve, Tundish, and Expansion Vessel  are  supplied loose for site installation.

INDIRECT ELECTRIC AMAZON MK2
Unit sizes and details are as follows:

Inlet Pressure Reducing Valve set at:    3 bar
Temperature & Pressure Relief:  7 bar   90°C
Expansion Relief:  6 bar

Other options include:

• Fitted Primary Controls and Wiring
• Expansion Vessel within Casing (see MK1)

These are aimed at minimizing the efforts of the installer on site