Humber Court Farm

Project Included

  • Lindner & Sommerauer 50kW wood chip boiler with 4m agitator.
  • Distribution pipework including internal connections to heat exchangers.

Fuel Consumption

  • 25 tonnes of wood chips, per annum. (Based on system of similar capacity, in a similar application).

Fuel Cost Saving

  • Wood chips: 50-80% vs heating oil. (Source; Biomass Energy Centre).

CO2 Saving

  • Up to 96% or 88 tonnes vs heating oil (Source; Biomass Energy Centre).

RHI Payments

  • A project of this size would gain approximately £5,500 in RHI payments every year for 20 years, index linked to inflation.

Total Project Price

  • £45,000

Payback Period

  • 5 years (Combining RHI income & fuel cost saving).

Project Summary

  • Lindner & Sommerauer 50kW biomass boiler.
  • Runs on wood chips.
  • 4m agitator and 3m Auger to enable a large fuel store to minimise fills.
  • 2,000 litre buffer tank.
  • 2 x class 2 RHI eligible ultrasonic heat meters complete with certification.
  • Biomass boiler linked to existing heating and hot water system.
  • High efficiency, low energy main system pump.
  • Full assistance with RHI application including schematic drawings.
  • Commissioning, programming and end user training.



Humber Court Farm is a 200 acre mixed livestock and arable farm in Leominster, North Herefordshire.

The Requirement

The farm’s original biomass boiler was decommissioned, to make way for an RHI accredited wood chip district heating scheme.

A 50kW Lindner & Sommerauer biomass boiler system now heats the farm house and buildings. Heat is sent to the farm house by underground heat main.

Complete Biomass Boiler District Heating Package

It was a turnkey project, including all ground works and the construction of a new building to house the biomass boiler and fuel store.

We supplied and installed the boiler system, organised the trenching, laid the heat main and carried out all of the internal connections into the farm house and offices.

We also oversaw the construction of a large, bespoke boiler house and fuel store.

The large fuel store minimises the amount of fills per year and enables them chip fuel from their own woodlands and hedges to keep the cost down.

Financial Benefit

As well as fuel cost savings of up to 80%, the installation will soon be accredited into the Renewable Heat Incentive. Once approved, they will start to receive quarterly RHI payments.

Technical Specifications

SL 50/150 Biomass Boiler System



Max. Heat Output kW 50
Min. Heat Output kW 12.4
Min. Combustion Efficiency % 91.9
Max. Combustion Efficiency % 92.1
Width mm 770
Depth mm 1,050
Height mm 1,430
Flow & Return Diameter


Flue Connection Diameter mm 180
Flue Connection Height mm 650
Boiler Weight (Assembled) kg 675
Auger Weight kg 82
Water Content Ltr 110
Power Consumption A/ V 16/ 400