衛生間常用的熱水器一(yi)般有煤氣熱水器、電熱水器、太陽能熱水器三種。
如果有(you)煤氣(qi)(qi)(qi)管道，可安裝(zhuang)(zhuang)煤氣(qi)(qi)(qi)熱水(shui)器(qi)(qi)。煤氣(qi)(qi)(qi)熱水(shui)器(qi)(qi)比較(jiao)經(jing)濟，出水(shui)快，即(ji)開即(ji)有(you)，而且水(shui)量較(jiao)大。缺點是不夠(gou)安全。所以煤氣(qi)(qi)(qi)熱水(shui)器(qi)(qi)切忌安裝(zhuang)(zhuang)在浴室內，應分(fen)開安裝(zhuang)(zhuang)在衛(wei)生(sheng)間之外的通(tong)風處，避免煤氣(qi)(qi)(qi)中毒(du)事件發生(sheng)。一般與(yu)廚房臨近的衛(wei)生(sheng)間（客衛(wei)生(sheng)間）與(yu)廚房共用一個煤氣(qi)(qi)(qi)熱水(shui)器(qi)(qi)，并將其裝(zhuang)(zhuang)在廚房。
主(zhu)衛生(sheng)間可以(yi)考慮電(dian)熱(re)(re)水(shui)器或太陽(yang)能熱(re)(re)水(shui)器，特(te)點是比較清潔而且(qie)安全。但電(dian)熱(re)(re)水(shui)器用(yong)電(dian)大，費(fei)用(yong)較高(gao)，而且(qie)蓄水(shui)量有限，不能滿(man)足多人同時(shi)或連續使(shi)用(yong)。
太陽(yang)能熱(re)水(shui)器用(yong)電(dian)少，屬環保(bao)型，水(shui)量也較大(da)，但它(ta)較適用(yong)于(yu)北方地區(qu)。南方冬季雨水(shui)少，晴天少，太陽(yang)能經常不能將水(shui)加(jia)(jia)熱(re)到足夠溫度，仍需要電(dian)輔(fu)助(zhu)加(jia)(jia)熱(re)，相當(dang)于(yu)電(dian)熱(re)水(shui)器。北方地區(qu)全年雨雪(xue)少，晴天多(duo)，使用(yong)就非常方便。
為(wei)了合(he)理配(pei)置，兩(liang)個以(yi)上的衛(wei)(wei)生(sheng)(sheng)間(jian)(jian)(jian)(jian)可(ke)(ke)選(xuan)用(yong)兩(liang)種熱(re)(re)(re)水(shui)器(qi)。如客(ke)衛(wei)(wei)生(sheng)(sheng)間(jian)(jian)(jian)(jian)使用(yong)煤(mei)氣(qi)(qi)熱(re)(re)(re)水(shui)器(qi)，主衛(wei)(wei)生(sheng)(sheng)間(jian)(jian)(jian)(jian)使用(yong)電熱(re)(re)(re)水(shui)器(qi)；客(ke)衛(wei)(wei)生(sheng)(sheng)間(jian)(jian)(jian)(jian)使用(yong)煤(mei)氣(qi)(qi)熱(re)(re)(re)水(shui)器(qi)，主衛(wei)(wei)生(sheng)(sheng)間(jian)(jian)(jian)(jian)使用(yong)太陽(yang)能(neng)熱(re)(re)(re)水(shui)器(qi)；或客(ke)衛(wei)(wei)生(sheng)(sheng)間(jian)(jian)(jian)(jian)使用(yong)電熱(re)(re)(re)水(shui)器(qi)、主衛(wei)(wei)生(sheng)(sheng)間(jian)(jian)(jian)(jian)使用(yong)太陽(yang)能(neng)熱(re)(re)(re)水(shui)器(qi)，根據不同的環境及設備條(tiao)件來選(xuan)擇，這樣(yang)，既可(ke)(ke)以(yi)充分利用(yong)能(neng)源又可(ke)(ke)以(yi)滿足幾處同時(shi)用(yong)熱(re)(re)(re)水(shui)的需(xu)要，是較(jiao)為(wei)合(he)理的設置。
