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Upgrade nowDecommissioning Hot Water Systems
Read through the material below, then test your understanding.
Module Lessons
Hot Water
Hot Water Legislation and Standards
System Selection Factors
Open Vented Hot Water Systems
Hot Water Storage Cylinders
Combination and Quick Recovery Cylinders
Unvented Hot Water Systems
Localised Hot Water Systems
Hot Water Safety Controls
Discharge Pipework (D1/D2)
Decommissioning Hot Water Systems
Thermostatic Mixing Valves (TMVs)
Installing Shower Mixing Valves
Replacing Hot Water Components
Expansion of Hot Water Pipework
Testing and Inspecting Hot Water Systems
Hot Water System Fault Finding
Maintenance and Component Replacement
Lesson Overview
Decommissioning a domestic hot water system involves safely taking appliances and pipework out of service either temporarily for maintenance or permanently for disposal. Following correct isolation procedures protects property, prevents electric shock, and stops water contamination.
Learning Objectives
Distinguish between temporary and permanent decommissioning procedures for hot water systems.
Explain how to safely isolate and prove dead all relevant water, fuel, and electrical supplies.
Identify essential safety measures including temporary continuity bonding, system draining, and preventing dead legs.
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