Uhi ʻia ka ʻili o ka moena hoʻoheheʻe wela nano maʻalahi me kahi papa o ka lole fiberglass kūpaʻa kiʻekiʻe a hana ʻia i ke ʻano kiʻi me nā hili o ka pae wela wela.Loaʻa iā ia kahi maʻalahi a hiki ke hoʻokomo ʻia ma nā paipu a i ʻole nā ʻaoʻao curved.I ka manawa like, ʻoi aku ka haʻahaʻa o ka thermal conductivity ma mua o ka ea, a ʻoi aku ka maikaʻi o kāna hana insulation thermal 3 a 4 mau manawa ma mua o nā mea kahiko.
He mea kūpono no ka wela wela wela.