Heating Load Differential Results
Table 3 below consists of the 90% confidence intervals for the maximum and minimum ranges of allowable heating load differential predictions produced by the three reference programs compared against the heating energy load differential predictions of TREAT V3.0.27 and TREAT V3.0.30 in Colorado Springs, CO.
All TREAT V3.0.27 and TREAT V3.0.30 heating load differential results fall within the 90% confidence intervals required by National HERS standards.

Figures 3 gives results from the heating load differential (delta) tests using Colorado Springs, CO as the climate.
Figure 3. Heating load differential results for test cases L110 – L324 using TREAT V3.0.27 and TREAT V3.0.30 in Colorado Springs, CO.