1. 建筑保溫條件不同。建于80年代以前的建筑能耗為每平方米31.6 W，而近年來(lái)，建設(shè)部要求節(jié)能65%的標(biāo)準(zhǔn)建筑能耗為每平方米10.06 W。也就是說(shuō)，如果一個(gè)15平方米的臥式24小時(shí)全天候保溫，在建筑采暖中需要11.4 KWH的節(jié)能，而在建筑節(jié)能65%的標(biāo)準(zhǔn)中只需要4 KWH。這只是平均值，但也有一些因素使得每棟房屋和房間的能耗仍然相差很大。
　　1. The building insulation conditions are different. The energy consumption of buildings built before the 1980s was 31.6 W per square meter. In recent years, the Ministry of construction requires that 65% of the standard energy consumption of buildings should be 10.06 W per square meter. That is to say, if a 15 square meter horizontal 24-hour all-weather heat preservation, 11.4 kwh energy saving is needed in building heating, while only 4 kwh is needed in 65% building energy saving standard. It's just an average, but there are also factors that make the energy consumption of each house and room still very different.
　　2. 不同的房間位置:頂層與冷山墻的功耗是中層中間部分的2.8倍。
　　2. Different room positions: the power consumption of the top floor and the cold gable is 2.8 times of that of the middle part of the middle floor.
　　3.形狀系數(shù)的差異。建筑規(guī)模(體量)系數(shù)小，節(jié)能系數(shù)大，能耗0.01，差異約2.5%。一般建筑外形系數(shù)為0.25左右，一些小型房屋約1.4左右。這個(gè)問(wèn)題可能不容易為一般公眾所理解，這里有一個(gè)詳細(xì)的分析。由于房間的采暖空間需要的熱量很少，大部分熱量是靠墻壁吸收、散熱。因此，同一建筑面積形狀不同的墻體面積差別很大。例如,獨(dú)立意見(jiàn)16平方米的廣場(chǎng)空間墻高3米,四面墻壁的頂層,面積4 * 4 + 16 * 3 = 64平方米,如果獨(dú)立房間是0.5米的矩形* 32米,四周的墻頂層,面積是0.5 * 32 + 65 * 3 = 211平方米。同樣是16平方米的房間，但是墻壁的面積相差3.3倍，矩形的房間消耗的能源要多得多。
　　3. The difference of shape coefficient. The building scale (volume) coefficient is small, the energy-saving coefficient is large, the energy consumption is 0.01, the difference is about 2.5%. The general building shape coefficient is about 0.25, and some small houses are about 1.4. This problem may not be easily understood by the general public. Here is a detailed analysis. Because the heating space of the room needs little heat, most of the heat is absorbed and dissipated by the wall. Therefore, the area of the wall with the same building area and different shape is very different. For example, the 16 square meter square space wall of independent opinion is 3 meters high, and the top layer of four walls has an area of 4 * 4 + 16 * 3 = 64 square meters. If the independent room is 0.5 meter rectangle * 32 meters, the top layer of four walls has an area of 0.5 * 32 + 65 * 3 = 211 square meters. It is also a room of 16 square meters, but the area of the wall is 3.3 times different, and the rectangular room consumes much more energy.
　　4. 房子的不同方向。南向有陽(yáng)光的房間要比北向有陽(yáng)光的房間要節(jié)能。
　　4. Different directions of the house. Sunny rooms in the south are more energy-efficient than sunny rooms in the north.

　　5、房屋通過(guò)墻體面積比差。大窗密封能耗大，小窗節(jié)能。一般房間每平方米單層玻璃散熱量一般是外墻的5倍左右。
　　5. The area ratio of houses passing through walls is poor. Large window seal energy consumption, small window energy saving. In general, the heat dissipation of single-layer glass per square meter in a room is about 5 times that of the external wall.
　　6. 室外溫差。室內(nèi)外溫差每10度，溫差約為40%，比例不相等。
　　6. Outdoor temperature difference. For every 10 degrees of indoor and outdoor temperature difference, the temperature difference is about 40%, and the proportion is not equal.
　　照明，電器，烹飪。電器、炊事、照明等暖氣對(duì)房間的能耗也有影響。
　　Lighting, appliances, cooking. Electric appliances, cooking, lighting and other heating also have an impact on the energy consumption of the room.
　　8. 透氣性參數(shù)、門(mén)窗開(kāi)啟系數(shù)、供暖能耗數(shù)據(jù)一般考慮每2小時(shí)開(kāi)啟一次。
　　8. Air permeability parameters, door and window opening coefficient and heating energy consumption data generally consider opening every 2 hours.