NATE Ground Source HP Loop Installer Practice Questions - NATE IGSHPA Ground Source Heat Pump Loop Installer Exam

Why is high-density polyethylene (HDPE) the standard pipe material for buried ground loops?

It is the cheapest pipe regardless of application It is corrosion-resistant, flexible, and can be heat-fused into joints as strong as the pipe itself It conducts heat better than any metal It can be solvent-welded like PVC

Correct Answer:

It is corrosion-resistant, flexible, and can be heat-fused into joints as strong as the pipe itself

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