Can pellet boilers burn grass pellets?
Not yet. The major advantage of boilers over stoves is that they provide hot water and central hot water heating. Commercially available pellet boilers are designed to burn wood pellets and possibly corn pellets. They have no means of dealing with high ash content. They can successfully burn grass pellets, but will generate a large clinker that would need to be removed from the burn chamber every 6 hours or so, in order for the boiler to continue functioning. Pellet boilers designed specifically for grass pellets are currently being tested in Europe. Large commercial-scale boilers are capable of burning grass biomass.
