In the old farms have water wells will vertebral even cheaper solution. Discussed method allows for the recuperator air cooling and heating, respectively, in the summer in the winter.
Katika mashamba ya zamani na visima vya maji mapenzi mgongo hata nafuu ufumbuzi . Kujadiliwa inaruhusu njia kwa baridi recuperator hewa na inapokanzwa, mtiririko, katika majira ya joto katika majira ya baridi .