E rua ngā tikanga whakamarara wera e whakamahia whānuitia ana i roto i ngā taiaho CO2, ko te whakamatao hau me te whakamatao wai. Ko te whakamarara wera hau te mea nui e whakamahia ana mō ngā taiaho iti-mana, ā, ko tōna mana kāore e neke ake i te 100W. Ka kapi te whakamatao wai i te awhe mana katoa ka taea e ngā taiaho CO₂ te whakatutuki.
Ko te whakamatao wai he wai parakore, he wai whakapūkara, he wai whakakore iona rānei hei wai whakamatao hei whakamatao i te wera mai i te taiaho. Ko te mea nui e pā ana ki te whakamatao wera ko te rerekētanga pāmahana. Mā te pikinga o te pāmahana o te wai whakamatao ka whakaiti i te rerekētanga pāmahana me te pānga whakamatao wera, ka pā ki te mana taiaho. Nō reira, mā te whakaiti i te pāmahana wai whakamatao ka taea te whakapai ake i te whakamatao wera me te whakanui ake i te mana taiaho ki tētahi taumata. Heoi, kāore e taea te whakaiti tonu i te wai whakamatao. Ki te iti rawa te pāmahana, ka roa ake te wā whakamahana, ā, ka puta pea he haukū ki te mata o te taiaho, ka pā ki te whakamahinga o te taiaho, ā, ka whakapotohia tōna roa mahi.
I roto i te tukanga whakaputa tūturu, ko te mahi whakatikatika pāmahana wai o te pouaka whakamatao te tikanga e whakamahia ana hei pupuri i ngā taputapu taiaho i roto i te awhe pāmahana e tika ana hei whakarite i te mahi tonu me te pumau o ngā taputapu taiaho. Ko ngā pouaka whakamatao raupapa CW i whakawhanakehia e S&A mō ngā taiaho CO2 he rua ngā momo o te pāmahana pumau me te whakahaere pāmahana atamai. Ka taea te tika o te whakahaere pāmahana ki te ±0.3℃, ka taea te whakatutuki i ngā whakaritenga whakamatao me te whakamatao o te nuinga o ngā taiaho CO2, me te whakarite kia haere tonu te mahi a te taputapu taiaho CO2, kia pumau me te whai hua.
I whakatūria a S&A chiller i te tau 2002, ā, neke atu i te 20 tau o te wheako ki te hanga pouaka whakamatao. Kua whakawhanakehia e S&A ētahi hua raupapa pouaka whakamatao, e taea ai te whakatutuki i ngā hiahia whakamatao o te nuinga o ngā taputapu muka reera, ngā taputapu reera CO2, ngā taputapu reera ultraviolet me ētahi atu taputapu tukatuka ahumahi. I taua wā anō, kei te whakapai tonu a S&A i ana hua me ana ratonga, me te whakarato i ngā pouaka whakamatao ahumahi kounga teitei me te mahi teitei, te pono teitei me te whai hua nui o te pūngao mō te nuinga o ngā kaihanga taputapu reera.
![Taupānga Whakamatao S&A]()