Small pellet burner noise levels – bedroom friendly?

Installed a small pellet burner in our open-concept living area but worried about noise disturbing evening relaxation. The auger motor cycles every 15 minutes with a soft whirring sound (comparable to a refrigerator). This small pellet burner review included decibel measurements – 42 dB on low mode is barely noticeable with background TV. Anyone use these in studio apartments or quiet spaces successfully?