Here is a great install featuring a Vedolux 650. The wood boiler with its thermal storage is interconnected to a geothermal system. 6 hot water solar panels on the roof offer another heat source for the thermal storage.  The system was professionally installed in Indiana by Edwards Royal Comfort.

K2 Solar Panel Frame

K2 Varmebaronen hot water solar panels on roof.

Radiant plumbing zones.

Teknik Tank with solar exchanger coil.

Geothermal

Vedolux 650 wood Boiler by Varmebaronen.

Wood Storage room.