Don ƙara yawan zafin jiki na gida 10 ° sama da zafin jiki, kunsa 25-wattBrew Belt Heatera kusa da 6-9 gallon filastik fermenter. an ƙera shi don yin fermenter ɗin filastik ɗinku ya zama mai sarrafa zafin jiki da kuma taimakawa wajen kiyaye mafi ƙarancin yanayin zafi.
Kebul ɗin dumama na iya hana daskarewar bututu kuma ya ba da damar ruwa ya gudana akai-akai ƙasa da 0 ° C
Kebul ɗin dumama yana amfani da thermostat don adana makamashi.
Kebul ɗin dumama ya dace da bututun ƙarfe ko bututun filastik da aka cika ruwa.