double-throw switch and find that the maximum kw-hr that a range can consume in a month to give satisfactory water heatmg flat-rate service for the average family is as follows: The following charts and tables show the diversity factor of range installations in Spokane, Portland and Salt Lake City. Of particular interest is the diversity in the residence districts in Spokane showing about one half of the diversity in the apartment houses in the other towns; the Spokane charts also show on Wednesday a combined curve showing first 42 ranges alone and then 42 ranges and 21 water heaters and on Thursday two curves, one based on 5-minute peaks and the other on 30-minute peaks. |