Hot Water Plumbing Systems
A. Bhatia, B.E.
Course Outline
This 3-hours online
course identifies your hot water needs and outlines the type of systems available.
Choosing the most appropriate system for your needs, together with the wise
system design & use, can considerably lower your hot water costs.
This course is intended to provide basic information on system design, which
may be used for conceptual design in the absence of any more appropriate information.
The course is suitable for students, architects, plumbers, engineers and the
facility designers.
This course
includes a multiple-choice quiz at the end, which is designed to enhance the
understanding of the course materials.
Learning Objective
At the conclusion of this course, the student will:
- Be able to estimate the hot water consumption and demands;
- Be knowledgeable about the system design configurations of hot water systems; and
- Be able to conceptualize,
judge and select the right system.
Hot water plumbing
systems has a) heat source, b) heat transfer equipment, c) a distribution system
and d) terminal hot water usage devices.
Heat source may be a) fuel energy b) solar energy c) electrical energy and/or
d) waste heat recovery from flue gases, boiler blow down, air-conditioning systems
or process waste discharge.
Distribution system transport the hot water produced by the water heating equipment
to plumbing fixtures or space heating equipment.
The course is divided as follows:
- PART 1: Estimating Hot Water Demands
- PART 2: Choosing the Type of Hot Water System
- PART 3: Types of Fuel
- PART 4: Design Considerations
- PART 5: Solar Water Heaters
- PART 6: General
Information & Terminology
Course Content
The course content is in a PDF file Hot Water Plumbing Systems . You need to open or download this document to study this course.
Course Summary
The hot water piping
systems shall be designed to be consistent with the requirements of various
plumbing codes. Local jurisdiction requirements may vary widely and are also
important.
The hot water system may be designed as natural gravity system or recirculation
system. ASPE recommends recirculation when the distance from the water heater
to the furthest fixture exceeds 100 feet or the time lag for hot water to reach
a fixture(s) exceeds 30 seconds. Recirculation systems use pumps to rapidly
move water from a water heater to fixtures.
The hot water piping system design incorporates both tree and parallel-piping
configurations (sometimes referred to as a manifold system).
Storage water heaters are designed to hold a useful quantity of hot water in
a thermally insulated tank ready for use throughout the day. Continuous flow
systems heat the amount of hot water on demand.
When deciding on which type of hot water system to buy, you may consider the
initial purchase cost but remember you can spend between two and fourteen times
the initial purchase cost of that system on running energy costs over its lifetime.
Check carefully on the fuel & equipment, system design, energy efficiency
and safety considerations.
Related Reading
Sizing Plumbing
Water System
The 3-hour course "Sizing Plumbing Water System" provides design criteria
for estimating potable water use. This course addresses the residential &
non-residential portable water demands.
Once
you finish studying the
above course content,
you need to
take a quiz
to obtain the PDH credits.

DISCLAIMER: The materials contained in the online course are not intended as a representation or warranty on the part of PDHonline.com or any other person/organization named herein. The materials are for general information only. They are not a substitute for competent professional advice. Application of this information to a specific project should be reviewed by a registered professional engineer. Anyone making use of the information set forth herein does so at their own risk and assumes any and all resulting liability arising therefrom.
