AkuPlast Heat Accumulation Tank
Extremely low thermal loss
Inner plastic pressure vessel is embedded in a precisely shaped hard polyurethane insulation with a resistant, washable plastic mantle. Thermal loss is reduced to minimum even when the vessel is buried underground.

Can be installed outside a house - underground version
Should you lack place for installing a thermal store inside your home, you chose use an APZ thermal store and bury it underground next to your house. Its presence will be marked by its plastic lid only. As its insulation properties are excellent, its heat loss will be markedly lower than in a standard accumulation tank. The plastic material used guarantees a long service life (expected 50 years at 60°C water temperature inside the tank).
| Code | Name | |
| 11889 | AkuPlast Heat Accumulation Tank - AP2WSE 400
indoor version, 790mm diam. incl. insulation, 1982mm height, 1.45 m2 lower heating coil, 4.68 m2 ... | ![]() |
| 11888 | AkuPlast Heat Accumulation Tank - AP3WS 750
indoor version, 1006mm diam. incl. insulation, 800mm without insulation, 2160mm height, 1.91 m2 ... | ![]() |
| 11887 | AkuPlast Heat Accumulation Tank - APZE 750
underground version, 960mm diam. incl. insulation, 2510mm height, no heating coils, no DHW heating, ... | ![]() |
| 11886 | AkuPlast Heat Accumulation Tank - APZ3WS 750
underground version, 960mm diam. incl. insulation, 2510mm height, 1.91 m2 lower heating coil, 1.78 ... | ![]() |




