A50 -- Service Water Heating (I-P)

Water heating energy use is second only to space conditioning in most residential buildings, and is also significant in many commercial and industrial settings. In some climates and applications, water heating is the largest energy use in a building. Moreover, quick availability of adequate amounts of hot water is an important factor in user satisfaction. Both water and energy waste can be significant in poorly designed service water-heating systems: from over- or undersizing pipes and equipment, from poor building layout, and from poor system design and operating strategies. Good service water-heating system design and operating practices can often reduce first costs as well as operating costs. The information in this chapter is thus critical for the sustainable design and operation of many buildings.

Chapter Table of Contents

System Elements

Water-Heating Terminology

System Planning

Water-Heating Equipment

Design Considerations

Distribution

Terminal Hot-Water Usage Devices

Water Quality, Scale, and Corrosion

Safety Devices for Hot-Water Supplies

Special Concerns

Hot-Water Requirements and Storage Equipment Sizing

Boilers for Indirect Water Heating

Water-Heating Energy Use

Citation: 2011 ASHRAE Handbook -- HVAC Applications: Chapter 50, Service Water Heating



Product Code(s): D-A502011IP