Boiler Upgrade Scheme eligible £7,500 grant available

Biomass Boiler

Wood-pellet or wood-chip boilers provide carbon-neutral heating and hot water — and qualify for a £5,000 BUS grant in rural properties in England and Wales.

Biomass Boiler — line illustration

How Biomass Boiler installation works

  1. A heat loss assessment and fuel-store survey determine the appropriate boiler size and configuration.

  2. Your MCS-certified installer applies for the BUS grant voucher before work begins.

  3. The boiler, flue, buffer tank, and fuel store are installed — typically over several days for a full system.

  4. The system is commissioned, flue emissions tested, and signed off to MCS standards; an MCS certificate is issued.

  5. Your installer redeems the BUS voucher; you pay only the net balance after the £5,000 deduction.


Benefits of Biomass Boiler

  • Eligible for a £5,000 Boiler Upgrade Scheme grant (rural properties, England & Wales)
  • Carbon-neutral when sustainably sourced fuel is used
  • Lower fuel costs than oil or LPG in many rural areas
  • Can integrate with existing radiator systems and hot water cylinders
  • Automated pellet-fed systems require minimal day-to-day intervention
  • MCS certification ensures system design, installation, and fuel quality standards are met

Typical cost

Typically £10,000–£20,000 installed (pellet systems; log or chip systems vary)

Costs vary significantly depending on property size, existing systems, and installer. A surveyor's assessment will give you an accurate figure. Available grants (listed below) can substantially reduce the net cost.


Ideal for

  • Rural properties off the gas grid, currently on oil or LPG
  • Homes with space for a fuel store (pellet hopper or log shed)
  • Larger properties or those with high heat demand
  • Owners who can source sustainably certified biomass fuel locally

Grants you may qualify for

View all UK energy grants →

Find MCS-certified Biomass Boiler installers near you

Compare MCS-certified specialists in your area, check their credentials, and book a free assessment worth £380.