Total absorption at start with ignition transformer on.
The measurement has been carried out in Baltur's laboratory, in accordance with EN 15036-1 standard
**
Acoustic pressure measured one meter behind the equipment, it refers to Baltur's laboratory environment conditions and cannot be compared to measurements
carried out in different locations, with burner running at maximum rated thermal capacity.
***
Acoustic pressure was obtained characterizing Baltur's laboratory with a sample source, this measurement has an accuracy of class 2 (engineering class) with a
standard deviation f 1.5 dB(A).
**)
Acoustic pressure measured in the laboratory of the manufacturer with burner running on test boiler, at maximum rated heating capacity