Grant SpiraVac Vacuum systems

Designed specifically for the Grant Spira wood pellet boiler and SpiraPod outdoor boiler housing, the SpiraVac quickly and conveniently moves wood pellets from a Grant store to the boiler hopper without the need for an external feed auger.

Click here to watch our installation module on YouTube. 


  • WPV/KIT5INT – SpiraVac Internal Spira Vacuum kit – 5 metres
  • WPV/KIT10INT – SpiraVac Internal Spira Vacuum kit – 10 metres
  • WPV/KIT15INT – SpiraVac Internal Spira Vacuum kit – 15 metres
  • WPV/KIT20INT – SpiraVac Internal Spira Vacuum kit – 20 metres
  • WPV/KIT5POD – SpiraVac SpiraPod Vacuum kit – 5 metres
  • WPV/KIT10POD – SpiraVac SpiraPod Vacuum kit – 10 metres
  • WPV/KIT15POD – SpiraVac SpiraPod Vacuum kit – 15 metres
  • WPV/KIT20POD – SpiraVac SpiraPod Vacuum kit – 20 metres


  • Designed and manufactured by Grant
  • Simple to install
  • Gives more flexibility with boiler installation
  • Can be retrofitted to existing boiler
  • Maximum hose length of 20m
  • Lifts pellets up to a height of 3m
  • Only for use with the Grant Spira boiler ranges

Scroll across to view all table contents

Case Studies

19th century cottage now being heated by a Vortex Pro boiler

A cottage that was originally built in 1850 in a small Wiltshire village is now being kept warm by a Grant Vortex Pro 15-21kW kitchen/utility oil-fired boiler. Replacing an appliance that was over fifteen years old, the new Vortex now installed is providing reliable heating to the property, efficiently andRead More

Grant renewables installed in hostel for homeless

  The Battery Street Hostel for Signpost Housing is a 46-bed homeless hostel situated in the Stonehouse area of Plymouth, built to provide housing for some of the city’s most vulnerable people.  Completed in July 2011 and located just off Union Street, the building replaced the Ship Hostel, which didn’tRead More

Spira biomass boiler takes residence at Steadings Park in Suffolk

Steadings Park, a campsite and caravan touring park in Suffolk, recently installed a Grant Spira biomass boiler as an environmentally friendly, cost efficient solution to heating their newly built state of the art shower block. Located near a nature reserve in the beautiful back-drop of the Suffolk countryside, Steadings Park’sRead More

Martin Roberts warms up with a Grant VortexBlue

Earlier this year, television and radio property expert and author, Martin Roberts, turned to Grant UK for a replacement oil boiler to fulfil his property’s heating needs. Martin selected a Grant VortexBlue which, with its cleaner burning technology, is now keeping his home warm and toasty for many years toRead More

It is easy being green with a Grant biomass boiler

We revisit a factory in West Yorkshire which upgraded its existing heating system with a Grant biomass boiler just over two years ago. Installed under the non-domestic Renewable Heat Incentive (RHI), the Spira is not only keeping the factory warm but also significantly reducing the premises’ fuel costs and generatingRead More