Heating Helper

CHAPTER 4 - DOMESTIC HOT WATERChart #2This chart may be used as a cross check to Chart #1. The Hot Water Demandlisted represents the actual metering of 129 buildings. The number of each .building type sampled is listed at the extreme left side of chart.NumberType of BuildingMaximumHour8 Men’s dormitories 3.8gal/student8 Women’s dormitories 5.0gal/student15 Motels:no. of units (a)20 or less,60100 or more6.0 gal/unit5.0 gal/unit4.0 gal/unit13 Nursing homes 4.5gal/bed6 Office buildings 0.4gal/person25 Food establishments:Type Afull meal restaurantsand cafeteriasType Bdrive-ins, grills,luncheonettes,sandwichand snack shops26 Apartment houses:no. of apartments20 or less5075100200 or more1.5 gal/maxmeals/h0.7 gal/maxmeals/h12.0 gal/apt.10.0 gal/apt.8.5 gal/apt.7.0 gal/apt.5.0 gal/apt.14 Elementary schools 0.6gal/student14 Junior andsenior high schools*Per day of operation.(a) Interpolate for intermediate values.1.0gal/studentMaximumDay22.0gal/student26.5gal/student35.0 gal/unit25.0 gal/unit15.0 gal/unit30.0gal/bed2.0gal/person11.0 gal/maxmeals/h6.0 gal/maxmeals/h80.0 gal/apt.73.0 gal/apt.66.0 gal/apt.60.0 gal/apt.50.0 gal/apt1.5gal/student3.6gal/studentAverageDay13.1gal/student12.3gal/student20.0 gal/unit14.0 gal/unit10.0 gal/unit18.4gal/bed1.0gal/person2.4 gal/avgmeals/day*0.7 gal/avgmeals/day*42.0 gal/apt.40.0 gal/apt.38.0 gal/apt.37.0 gal/apt.35.0 gal/apt.0.6gal/student*1.8gal/student*Reference: ASHRAE/Systems Handbook (Service Water Heating)65