In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
Proper Riello F3 for use with outside combustion air
So my contractor is starting tomorrow to install a new 3 section Buderus G115WS in my basement but we've gotten a bit of conflicting information from supply houses and Buderus. For the install, I asked him to make sure the burner will support a connection for outside combustion air. The supplier told him that the Riello BF3 burner was needed. He then talked to Buderus and was told that the BF3 is meant for direct vent applications and we should use the F3 which now has a knockout for outside air. Looking tonight at the manual for the F3 in the spare parts drawing, the ducted combustion air intake kit(part#3002761)is shown with only a checkmark next to it in the F5 column, not the F3. Is the kit only valid for the F5 or does it just not come standard with the F3? Has anyone used a F3 burner with outside combustion air?