The company Herrmann is currently pursuing a development project for a modulating gas burner with two power ranges.
Series production is expected shortly.
Pneumatic fuel-air network
Modulation range of up to 6: 1
Burner output 1: 2.9 – 18 kW
Burner output 2: 4.8 – 30 kW
Speed-controlled EC blower with venturi and gas valve ebm papst NRV 77
Honeywell CM 424 digital, parameteric burner control
Communication interface Honeywell CM4XX adapter
Source chart left: ebmpapst