Grant Spira Wood Pellet Boiler Range
G-ONE Installer

Millside is an accredited G-ONE installer. This entitles our customers to Extended Warranty when they purchase a Grant Boiler.

Grant Biomass

Grant Spira Condensing Wood Pellet Boiler with left/right hand hopper

Featuring Grant’s patented stainless steel turbulator baffle system, the Spira Condensing Wood Pellet Boiler delivers award winning efficiency at outputs ranging from 5kW to 36kW.

Available in single outputs of 5-18kW, 6-26kW and 9-36kW with an efficiency of up to 89.5% (SAP2009). They come complete with a pellet hopper and feed auger, which automatically supplies the boiler with fuel.

Grant Biomass

Grant Spira Condensing Boiler with double hopper

Featuring Grant’s patented stainless steel turbulator baffle system, the Spira Condensing Wood Pellet Boiler delivers award winning efficiency at outputs ranging from 12kW to 72kW.

Available in dual outputs of 12-52kW, 15-62kW and 18-72kW. They utilise two boilers (separately flued) and a central hopper/twin auger arrangement.

Grant Biomass

Grant Vecta Condensing Wood Pellet Boiler range

Developed as a direct replacement for a floor standing fossil fuelled boiler, it makes biomass heating a viable alternative for most off-gas homes.

Its whisper quiet operation and sleek casing makes the Vecta ideal for installation within a kitchen or utility environment, and its patented condensing technology guarantees the highest efficiency possible.

Grant Biomass

Grant Vecta condensing external wood pellet boiler range

The Vecta is a perfect option for rural homeowners looking to reduce heating bills and take advantage of the financial incentives under the Domestic RHI.

This weatherproof outdoor module is the perfect choice when space is limited within the home. Featuring an optional 200kg bolt on hopper (as shown in photo), the unit can provide a combined pellet storage capacity of 295kg.