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Domestic Hot Water
DHW, or Hot Water for the Home

"DHW" is the acronym for "Domestic Hot Water".
  1. Cold water supply line
  2. Hot water supply line
  3. Existing temperature/pressure relief valve
  4. 3/4" ball valves (ASME approved) must be opened when stove is fired
  5. 3/4 vent elbow and automatic "float type" air vent (ASME approved" installed in high point of line
  6. 3/4 temperature pressure relief valve (ASME approved, and rated for 210 F/150 lbs.)
  7. Circulation pump
  8. Piping from temperature/pressure relief valves to areas of safe discharge
  9. 3/4" hot water tempering valve (ASME approved)
  10. 3/4" copper tee



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