Ko te hiahia rānei ki te tāpiri i te ārai-tio ki roto i te pūnaha whakamatao ahumahi e whakamatao ana i te mīhini tapahi ngongo taiaho i te takurua, ka whakawhirinaki ki te pāmahana o te wāhi noho o ngā kaiwhakamahi. Mena he iti iho te pāmahana o te wāhi noho i te 0 nekehanga Celsius, me tāpiri he ārai-tio. Nā te mea ka taea e te ārai-tio te āwhina i te aukati i te wai o te pūnaha whakamatao ahumahi kei tio. Engari kia mōhio koe, nā te mea he waikura te ārai-tio, kāore e taea te whakamahi mō te wā roa. Ina mahana haere te rangi, me tango e ngā kaiwhakamahi te ārai-tio ka whakakī anō ki te wai parakore hou, ki te wai purea ma rānei.
Whai muri i te 18 tau o te whanaketanga, ka whakatūhia e mātou he pūnaha kounga hua pakari, ā, ka whakaratohia he ratonga whai muri i te hoko kua tino whakapumautia. Neke atu i te 90 ngā tauira pouaka whakamatao wai paerewa me te 120 ngā tauira pouaka whakamatao wai hei whakaritenga. Me te kaha whakamatao mai i te 0.6KW ki te 30KW, ka taea te whakamahi i ā mātou pouaka whakamatao wai hei whakamatao i ngā momo pūtake taiaho rerekē, ngā mīhini tukatuka taiaho, ngā mīhini CNC, ngā taputapu hauora, ngā taputapu taiwhanga me ētahi atu.
