Fröling Layered Tank

Sensor Bar
The Fröling layered tank includes a sensor bar. The sensor bar is fixed to the exterior of the tank and allows for a large number of sensors at a multitude of locations. Correct positioning of the sensors is crucial for optimal operation of the system.

New Neopor and Fleece Insulation
The new Froling tank insulation consists of 80 mm Neopor and 20 mm of fleece, resulting in a total insulation thickness of 100 mm (four inches). Neopor® is the latest version of the insulating material Styropor®. The foam polystyrene contains graphite particles which disperse the thermal radiation and thus reduce heat loss. It performs up to 20 percent more effectively than conventional insulation.

Exact Temperature Layering in the Tank
Precise temperature layering in the tank is crucial for optimizing energy storage, by ensuring that as much energy as possible can be reused. All Froling layered tanks feature a special stratification baffle developed for this purpose.

How it Works
Incoming return water moves up through the stratification baffle and is then stored in the area where the water has a similar temperature. A highly defined thermocline is created separating cold from hot water.  This maximizes the portion of the tank with the hottest water, guarantying maximum energy yield and the longest possible boiler run and off cycles.  A mixed temperature tank may not perform well in heating systems demanding supply temperatures above 160 F.

Without Stratification Baffle

Diluted temperatures decrease the energy storage capacity of the tank.

With Stratification Baffle

Actual thermal imaging demonstrates the effectiveness of the stratification baffle. Temperature is strictly separated between hot and cold allowing the boiler to remain off for longer periods. Heat output remains at maximum until energy is completely depleted.