I have just moved into a house that already had a 3 room Weiss heat transfer system installed (pulling from room with wood burner). After about 5 minutes searching online I see I'm not alone in thinking this system is....not great.
The fan set up is 3 small impeller fans in the 3 way plastic splitter housing, one fan at the beginning of each room duct.
The runs are kinda long, particularly the intake duct, but the end result is minimal air flow at the outlets.
Now the ducting and controller etc are all good, so I'm wondering if I can simply bung a 150mm or 200mm centrifugal fan into the intake duct....that sound like it would work/help? Anyone know the volume rating of these small fans? Not sure if I should disconnect the 3 small fans (worried about backpressure, turbulance etc) or just leave them all going?
Actually the more I think about this I realise the 3 way splitter housing will be a completely different design for a single fan unit. If I put an inline single fan it will blow straight down the central path, and the 2 side branches won't get anything. I assume the purpose built 3-way single fan systems have some sort of baffles or ducting to distribute the air as it passes through the splitter?
Thanks heaps