Astro 2 Hot Water Recirculation System

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Astro 2 Hot Water Recirculation Pumps and Systems
Astro 2 Hot Water Recirculation Pumps and Systems - Front

  • Summary
  • Applications

    Domestic water distribution in standard two-pipe plumbing installations

  • Description

    The Armstrong Astro 2 hot water re-circulation system automatically circulates water through domestic water pipes. This ensures that hot water is available instantly at every tap throughout a residence. From a cost and environmental point of view, far less water is wasted each time a hot water faucet is opened – saving an average of 12,000 gallons of water annually for a typical four-person household. Ideal for retrofit applications.

  • Materials

    Lead-free bronze or stainless steel (pump casing), ceramic (pump shaft and bearings), PEI (impeller), EPDM (bearing seals)

  • Performance range
    • Longest pipe run between hot water tank and farthest fixture: 250 ft (76 m)
    • Aquastat maintains hot water temperature within a 20°F (11°C) range between 85°F (29°C) and 105°F (40°C)
  • Temperature

    Max water temp 230°F (110°C) 

Water savings

  • Astro 2 hot water recirculation reaps an average annual water savings of 12,000 gallons (based on a family of four spending over 90 hours per year waiting for hot water to arrive at the tap)




Increased resident comfort

  • Astro 2 hot water recirculation delivers instant and stable hot water to every tab in a residence – avoiding hot water lag times and fluctuating temperatures

Case studies

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360 Service and Support

Astro 2 Hot Water Re-circulation Systems - brochure

Hydronic Solutions - digital catalog

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