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Pool Heater Replacement

Complete guide to removing an old pool heater and installing a new gas or heat pump heater.

4-6 hours

Tools Needed

  • •Pipe wrench
  • •Adjustable wrench
  • •Pipe thread compound
  • •Level
  • •Gas leak detector

Parts Needed

  • •New heater
  • •Gas flex line
  • •Unions
  • •Teflon tape

Step-by-Step Instructions

Safety First

Turn off gas supply and electrical breaker before beginning work.

Step 1: Disconnect Old Heater

Disconnect gas line, plumbing unions, and electrical connections.

Step 2: Remove Old Unit

Unbolt from pad and carefully remove old heater.

Step 3: Prepare Installation Area

Clean pad, ensure proper clearances per code requirements.

Step 4: Install New Heater

Position new heater, connect plumbing, gas, and electrical per manual.

Step 5: Test and Commission

Leak test gas connections, fill with water, and test ignition.

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