Room vs Outdoor Temperature in an NZ Home

The data plotted here was collected in my bedroom using a "weather forecast multi-channel in-out thermometer with cable free sensor and radio controlled clock" (model TTN302). The data is from the winter of 2011 in Christchurch, NZ. We had recently purchased a house after several years living in Europe and were more than a little shocked by how cold our room temperature was, despite having a heat-pump. Consequently we added insulation to the ceiling (Terra Lana), underfloor (Autex) and a moisture vapour barrier was laid on the ground under the house. A week later the single-glazed windows in the house were removed and replaced with double-glazed windows by Thermoglaz (www.thermoglaz.co.nz). Their method allowed us to retain the character of the original wooden frames. Dates: No insulation, single-glazed: 2011-08-08 2011-08-19 Insulation, single-glazed: 2011-08-22 2011-08-28 Insulation, double-glazed: 2011-09-03 2011-09-26

本次绘图所用数据采集于新西兰克赖斯特彻奇2011年冬季，采集地点为笔者卧室，使用型号为TTN302的「多通道进出式天气预报温度计，配备无线传感器与无线电受控时钟」。此前我们在欧洲旅居数年后刚购入该住宅，即便已安装热泵，室内温度仍低得远超预期，令我们颇为诧异。为此我们采取了三项保温改造措施：在天花板铺设Terra Lana保温材料、在地面下方加装Autex保温层，并在房屋底部的地面铺设蒸汽防潮膜。一周后，Thermoglaz（官网：www.thermoglaz.co.nz）将住宅原有单层玻璃窗更换为双层玻璃窗，其施工方案得以保留原有木质窗框的风格。各实验阶段的时间范围如下：
1. 未加装保温、单层玻璃窗阶段：2011-08-08 至 2011-08-19
2. 已加装保温、单层玻璃窗阶段：2011-08-22 至 2011-08-28
3. 已加装保温、双层玻璃窗阶段：2011-09-03 至 2011-09-26