Technical Articles

FAQ - What size pump should I use on my recirculation system?

A pump should be sized to overcome the head losses of the water heater and frictional piping losses. It is recommended that the pump be sized to provide 2 gpm of flow based on 10 feet of head loss plus additional losses. Aquastat and/or timer should be used to maintain warranty of product. Please also refer to Plumbing applications in the installation manual located at http://support.noritz.com/technical-literature.php

Below are some pump manufacturer's who can properly assist you with sizing your pump:

Grundfos – 913-227-3400
Taco – 401-942-8000
Bell & Gosset – 847-966-3700

Applicable Models
  • Models: ALL MODELS
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