For Spira boiler installations where an auger fed bulk store is unsuitable, the Grant SpiraVac can be utilised. This is particularly useful when the external store needs to be sited further away from the boiler than desired, due to space restrictions.
The SpiraVac is a woodpellet vacuum system that automatically moves fuel from a bulk pellet store to the Spira boiler hopper. After every bulk pellet delivery, customers can be confident that their wood Pellet boiler will be continuously fed with enough fuel for several months of routine operation.
The system consists of a cyclone unit and a separate auger vacuum unit on the bulk store, connected by 2 flexible hoses.