省到水電:Bal b/f TW$6,935+TW$365=TW$7,300 Bal c/f
https://www.i-cable.com/%E6%96%B0%E8%81%9E%E8%B3%87%E8%A8%8A/307597/%E8%B3%A3%E8%B1%AC%E4%BB%94-%E4%BF%9D%E5%AE%89%E5%B1%80%
https://www.hk01.com/%E5%8D%B3%E6%99%82%E5%9C%8B%E9%9A%9B/1093297/%E6%B3%B0%E5%9C%8B%E8%AD%A6%E6%96%B9%E5%90%91%E8%8F%AF%E5%
到底有多冷 ? 客廳沒有暖氣 , 又大 ...窗戶又不是 氣密窗
https://www.bastillepost.com/hongkong/article/14631156-%E4%BF%9D%E5%AE%89%E5%B1%80%E5%B0%88%E8%B2%AC%E5%B0%8F%E7%B5%84%E5