Grant Biomass Boilers

Commercial Biomass Partnership LLP are G-One registered MCS suppliers and installers of Grant Biomass boilers.

Grant Spira

Grant Spira

Grant have a strong presence in the oil boiler market and had the foresight to develop their own biomass pellet boilers from scratch to keep up with current moves to reduce carbon emissions in the domestic heating market and the switch to greener fuels. Most of their competitors simply bought-in boilers from eastern block countries and re-badged them instead.

The benefits of a Grant Spira biomass boiler are simplicity coupled with high efficiency of up to 97% that is achieved with its patented baffle system and condensing heat exchanger. There is very little to go wrong with the boiler and, as with their oil boilers, the engineering is heavyweight and robust.

Heat outputs range from 6kW to 72kW, with the higher outputs achieved by a twin boiler installation. The benefits of this are that the 72kW installation is eligible for Domestic RHI, as both boilers are beneath the maximum individual rating of 45kW.







Key features:

  • MCS approved
  • High efficiency (up to 97%)
  • Modulating burner (down to less than 25% of max output)
  • Integrated bulk pellet store
  • 125mm conventional flue
  • Automatic pellet feed and ignition
  • Award winning condensing heat exchanger
  • DEFRA approved under the Clean Air Act
Grant Spira 2014 Double Boiler Installation

Grant Spira 2014 Double Boiler Installation