McDonald Water Storage 150 Litre Slimline Cylinder

The McDonald STEELflow Cylinder is manufactured from duplex stainless steel, and specifically designed for use with either air source or ground source heat pumps. It can also be used with gas system boilers using Priority Domestic Hot Water (PDHW).

These cylinders have a large corrugated high efficiency indirect heat exchanger to ensure optimal heat transfer at lower flow temperatures. The coil’s corrugated design provides high heat transfer and flow rates from the heat pump, with faster recovery times than plain coils due to the increased surface area.

• Inlet Combination Control Set
• Expansion Vessel with Fixing Kit
• 2 Port Valve
• T&P Valve
• Tundish
• High Limit Thermostat
• Installation Manual

All Units to Following Specification:

• 90 Degree Elbow on Hot Water Draw Off (22mm compression)
• Secondary Return 200-300 litre (22mm compression)
• T&P Valve (1/2” Female)
• Thermostat Pocket
• Immersion Heater (1 3/4” Female)
• Heat Pump Coil Flow / Return (1” Female)
• Cold Feed (22mm compression)