Ko tētahi o ngā painga o te whakamahana ki te rakau, kotahi noa te oumu ka taea te whakamahi mō ngā hiahia katoa. Haunga te pupuri i a tātou kia mahana, ka taea e ngā mīhini tahu rakau te tunu kai, te whakamaroke i ngā kākahu, me te tunu i ngā waewae makariri. Engari, kāore ianei e tino ataahua mēnā ka taea hoki e taua pouaka pango te kaukau wera?
Ina hoki, ehara i te mea hou ngā whakamahana wai wahie o te whare… neke atu i te rau tau ki muri, he maha ngā oumu he āpitihanga tāke. Heoi, nā te taenga mai o ngā tahu rakau "katia" me ngā pūnaha wai pēhanga kua waiho te nuinga o ngā tikanga whakamahana puranga tawhito ki muri i te tahu, ā, kua whakawhanakehia ngā tikanga hou e hangai ana ki ngā huringa kati.
Ko te nuinga o ngā taputapu whakamahana wai e whakamahi ana i ngā whakawhiti wera kua tāutahia ki roto i te pouaka ahi, i te auahi taputapu rānei. Ko te tauira arumoni pai rawa atu o tēnei huarahi he tino pai te mahi. Mena kei te rere te oumu i te nuinga o te rā, ka taea e rātou te whakarato wai wera mō te whare katoa. Heoi, mō te haumaru, he maha ngā wā ka hangaia ēnei taputapu ki te maitai kore waikura (he taonga utu nui) ā, me whakamātautau i te pēhanga kia tino taea ai e rātou te tu atu i ngā pāmahana tino tiketike ka tūtaki pea ki roto i te pūnaha whakamahana. Nō reira, he nui te utu mō te whakawhiti wera ā-roto pai. Engari, ko ngā ā-roto i hangaia i te kāinga, he rongonui mō ngā pahūtanga mamaoa wera.
Waihoki, ko te tango wera mai i te auahi o te pouaka ahi, o te oumu rakau rānei, ka pā he pānga kino: ko te tango tika i te Btu mai i te ahi (mā te whakamahi i te whakawhiti pouaka ahi) ka whakaiti i te pai o te tahunga… ki te whakamataohia ngā hua o te tahunga kāore i oti i raro i te pāmahana e whakapūmau ana (mā roto i te rūma tahunga, i te whakawhiti wera rānei o te auahi), ka puta he nui o te creosote. Kaua e pohehe, ko te whakakotahitanga o te ahi o te auahi me te whakawhiti wera kī tonu i te wai ka puta he aituā.
I te mōhio kāore he kai o te poutumarotanga kāore e utua, i whai mātou i tētahi huarahi matawhānui ki te hoahoa i tā mātou ake taputapu whakamahana wai o te oumu rakau. Engari i te whakanoho i tētahi whakawhiti ki roto i te whakamahana, i te auahi rānei, i tāpirihia e mātou tētahi ki waho o te pouaka ahi. Mā te whakamahi i tēnei rautaki, i karohia e mātou ngā whakarerekētanga nui ki te whakamahana, e pupuri tonu ana i te whakamanatanga a Underwriters Laboratories. He mea nui ake, kua tutukihia ētahi o ngā paearu haumaru kua whakahuatia ake nei e mātou: ko te pāmahana e tūtakihia ana i waho o te pouaka whakamahana kāore e kohuatia te wai (i te mea kei te rere tonu te wai), ko te wera e whakamahia ana hei whakamahana i te wai ka tukuna e te whakamahana, nō reira kāore he wera nui e puta mai i te pouaka ahi.
Ko tā mātou taputapu whakamahana wai he tata ki te 50 putu noa iho o te ngongo parahi 1/4 inihi te whānui kua takaihia ki roto i te pakitara maroke kua whakakīia ki Parī. Mā te rauemi gypsum ka tohatoha te wera kia ōrite ki ngā koiri, ā, ka taea e te whakawhiti te pā tika ki te tinana oumu me te kore e wera rawa. (E mihi ana mātou ki a Ed Walkinstik mō te whakaaro.) Ka piri te huihuinga ki tetahi taha o te whakamahana ka mono ki roto i te whakamahana wai 42 karani hangarua (i whakamahia e mātou he whakamahana wai me te wāhanga wera engari he pouaka ātete oro). He rite tonu ki te whakamahana o mua o te rā.
Ka rere te wai mā te papu 10 karani ia meneti e mau ana ki runga i te waikeri whakamahana mā roto i te koiri, ka hoki ki te "T" i raro iho i te takirere whakaora i te tihi o te tāke (he mea rāhui tēnei takirere hei ārai haumaru). Ka tomo te wai matao ki roto i te ipu mā te tomokanga noa, ā, ka tomo te wai wera rakau ki roto i te whakamahana hiko tikanga mā te putanga wera paerewa. He pai te whakamahana o ngā waea katoa ki te pahuka matotoru 1 inihi.
Ae, ki te mea kei te rere tonu te wai, ka ngaro pea te wera ki te oumu ina kore he ahi e mura ana. Hei ārai i tēnei, i whakatakotoria e te kairangahau a Dennis Burkholder ngā mana whakaweto/whakakā aunoa ki runga i te thermostat hau hau-ngaohiko raina e hono ana ki te taura hiko o te papu. (Ka taea hoki e koe te whakamahi i te mana whakahaere whakamahana/hau hau whakakotahi noa ake, kua whakatakotoria ki te aratau whakamatao.) Kei runga i te pakitara te thermostat e toru putu te tawhiti atu i te whakamahana, tata ki te putu mai i runga. Ina tae te pāmahana o te hau ki te 80°F, ka tahuri te kaiwhakahaere 120-volt ki te papu, ā, ka tīmata te wera o te wai. Ina heke te pāmahana ki te 76°F, ka whakaweto anō te pana rerekētanga kua hangaia ki roto i te porohita.
Kei roto i ngā tuhi e tāpirihia ana ngā wāhanga o te pūnaha whakawhiti wera, engari me whakarerekē ngā rahinga taketake i ia tāutanga. Hei tauira, ki te nui ake tō oumu i tō mātou, ka taea e koe te whakawhānui i te panera kia nui ai te koiri 60-putu te roa o te paipa parahi ngohengohe 1/4″ i roto i te anga whakawhiti nui ake. Heoi, ko te hunga he iti ake ō rātou whakamahana me whakamahi i te iti o te waea.
Ahakoa pēhea, ko te mea māmā rawa atu ko te whakamahi i te ngongo nā te mea he mea takai hei kawe. Ka maka noa e mātou te waea kua kōpikopiko ki roto i te anga, ka piko mārire te paipa kia whakakīia te tapawhā rite. Ka taea te piko i te rauemi ngāwari ki te radius o te 1-1/2 inihi me te kore e piko, nō reira ehara i te mea uaua ki te akiaki ki roto i ngā "wāhi wera" pea. Ka mahi mātou mai i te taha o waho ki roto, ka whakapiri i ngā koiri ki te papa o muri i a mātou e haere ana. (Me te kore he waea hei whakau i te mowhiti o waho o te ngongo, i hiahia te mea katoa ki te peke atu i te anga.)
Kia ōrite te horapa o ngā paipa parahi ki roto i te anga, whakaohokia he paparanga angiangi o te paraikete o Parī, ka ringihia te ranunga ki roto i te anga. Whakatakotoria te mata mā te whakamahi i te rūri ki runga i te rino koki, ā, waiho kia maroke te rauemi mō ētahi rā. Kātahi ka taea te tāpiri i te panera ki te taha o te oumu, ā, ka taea te hono i te aho 1/4 inihi ki te paipa 1/2 inihi o te tāke whakamahana.
I whakahaerehia e mātou he whakamātautau roa hei whakatau i te whirihoranga tino whai hua o te pana, hei whakawhiwhi hoki i a mātou ki te whakapono ka mahi haumaru te taputapu. Hei tauira, kia kite ai he aha ka puta mēnā ka mutu te hiko ka mutu tā mātou papu, i hiritia e mātou te paipa e puta mai ana i te tāke whakamahana, ā, i tāutahia he ine pēhanga ki runga i te takirere whakaora. Ko te pēhanga teitei rawa atu i taea e mātou te whakawhanake i roto i te pūnaha ko te 3 PSI… i muri i te aukati a tā mātou Atlanta Stove Works Catalytic i te rere mō ngā haora e 8 i te tere wera teitei rawa atu!
Hei tāpiri, hei whakatau mēnā kei te akiakihia te whakawhiti wera kawe i roto i ngā pakitara oumu ki ngā taumata kino, i tirotirohia e mātou te roto o te pouaka ahi o te tahu rakau i ia rā mō te pikinga o te hanga creosote. Kāore i kitea he rerekētanga o te āhua, te hohonu rānei o ngā putunga i runga i tētahi o ngā pakitara e whā, e kī ana ko ngā whakawhiti te nuinga o te wā e whiwhi ana i te kaha hihi mai i ngā pakitara oumu o waho. (Tērā pea i takaro te uku i tētahi mahi ārai, hei whakakapi i te pikinga o te kawe hiko.)
E hia te nui o te wai wera ka puta mai i te whakawhiti? Āe, i runga i te huringa 7 hāora noa, ka utaina e mātou he 55 ki te 60 pauna o te rakau ki roto i te Atlanta catalyst, ka piki ake te pāmahana o te tāke 42 karani ki te tata ki te 140°F. Ko tēnei tere tahunga 8 pauna ia hāora he teitei ake pea i tā te nuinga o te tangata e whakamahi ana, nō reira ka iti ake pea te wai wera ka puta mai i tētahi taputapu rite. Ae ra, ki te mau tonu tō tahunga nui i te roanga o te rā, me nui tonu te wai wera mō ngā hāora 24 neke atu i te 100 karani ia rā. Ahakoa ka "whakaweto" pinepine koe i tō oumu, ka tino whakaitihia e tēnei pūnaha ō pire ratonga.
I runga i te rahi o tō whare me te wai e pau ana i te katoa, ka taea e tēnei pūnaha te whakakore i ō pire wai wera hotoke. Nō reira, ki te taea e koe te tiki rakau mō te iti iho i te nui o te hiko, te hau rānei, ka tino tika te haumi ki te pūngao e whakamahia ana e koe hei whakamahana i te wai mai i tō oumu rakau (haunga te wāhi, me te wera ka tukuna e te taputapu). Hei tāpiri, ka koa koe ki te mōhio kua mahi koe i tētahi atu taahiraa ki te whakakapi i ngā pūtake pūngao kāore e taea te whakahou.
Mō ngā tau 50 i MOTHER EARTH NEWS, kua mahi mātou ki te tiaki i ngā rauemi taiao o te ao, me te āwhina anō hoki i a koe ki te penapena rauemi pūtea. Ka kitea e koe ngā tohutohu mō te tapahi i ō pire whakamahana, te whakatipu hua hou, taiao i te kāinga, me ētahi atu. Koia mātou e hiahia ana kia penapena moni koe me ngā rākau mā te ohauru ki tā mātou mahere penapena whakahou-aunoa e pai ana mō te whenua. Ina utu koe me te kāri nama, ka taea e koe te penapena $5 tāpiri me te whiwhi i ngā putanga e 6 o MOTHER EARTH NEWS mō te $12.95 noa iho (US anake). Ka taea hoki e koe te whakamahi i te kōwhiringa Bill Me me te utu $17.95 mō ngā utunga e 6.