Gas fired modulating water heating appliance with dual combustion air premix blowers

摘要

A water heating apparatus includes a burner having first and second zones. First and second blowers provide premixed fuel and air to the first and second zones, respectively. An automated control system controls the two blowers.

主权项

1. A water heating apparatus, comprising:
a burner including first and second internal zones separated by an internal barrier, and including first and second external foraminous burner wall portions at least partially defining the first and second internal zones; a first blower communicated with the first internal zone of the burner for providing premixed fuel and air to the first internal zone; a second blower communicated with the second internal zone of the burner for providing premixed fuel and air to the second internal zone; and an automated control system connected to the first and second blowers.