Design, Installation and Servicing of Biomass Systems

Biomass Systems

McKerrow Engineering offer a turnkey solution for design, installation and servicing of biomass heating systems. We work with you to ensure that every consideration regarding your biomass project is discussed, confirmed and implemented.

By assessing the heat demand you need to satisfy and how you wish to feed the boiler, we provide guidance on how to keep your ongoing fuel delivery costs as low as possible. We will design a District Heat Network (DHN) that meets your specific requirements and advise you on the hydraulic design to minimise heat loss.

With access to various makes of boilers using either straw, logs, wood chip or pellets the system will be designed around your needs and location.

Our experience in the agriculture and forestry sector enables us to also offer guidance on how to manage your own fuel supply to keep your future running costs as low as possible.

Biomass represents an opportunity for farmers and landowners to supply their own fuel and be less dependent on fuels where they cannot control the future costs. With the government backed support in the form of the Renewable Heat Incentive (RHI) it is possible to add an additional income stream to the business while reducing fuel costs.


Ekopal 600kW straw boiler
Ekopal 180kW straw boiler
Blown woodchip store
Froling 40kW log & pellet boiler
ETA 200kW woodchip boiler
ETA 50kW woodchip boiler
DHN installation with electrical conduits
DHN termination

Click images to enlarge

Our Focus

Fuel selection and supply

Whether you plan to have all fuel delivered to site or to process your own, fuel delivery and handling is one of the most critical elements of designing a biomass system. If this part of the system is designed well, the installation will be a pleasure to live with and can save significant costs into the future.

By understanding the characteristics of the fuels and how their output relates to moisture content it is possible to make an informed choice on what fuel will be used and therefore what boiler will be most appropriate for each site.

Boiler selection

The most appropriate boiler for a given application will depend on a number of factors, including fuel selection, space availability for the boiler and fuel supply, and what level of autonomous operation is required. By offering boilers with a proven track record and high efficiency it is possible to minimise your future running costs.

Heat distribution system

When replacing multiple boilers with one central boiler, it is important to optimise the efficiency of any heat distribution system. This involves designing a District Heat Network (DHN) with an emphasis on maximising efficiency through insulation and hydronic controls.


The Renewable Heat Incentive (RHI) is a government funded initiative to encourage more heat users to switch to a renewable source of fuel. The RHI offers an index linked payment for 20 years based on the amount of eligible heat used. By guiding you through the eligibility requirements it is possible to design a system to maximise the available return for the investment.


The attractive rate of return available from the RHI over the last few years has seen significant growth in the biomass sector with many companies starting to install biomass systems and District Heat Networks. Some of these installations have been found not to offer the level of efficiency that was originally suggested with fuel use being far greater than expected. By analysing the specification of the products installed and the use of a thermal imaging camera, it is possible to see where heat loss is attributing to the higher running costs. It is then possible to propose adjustments to the system to improve the efficiency saving costs year on year.

District Heat Network (DHN) design

Image shows an example District Heat Network (DHN) design

McKerrow Engineering

McKerrow Engineering was founded by Matt McKerrow.

Matt has a background in agriculture and arboriculture and trained in Energy & Environmental Engineering (BEng(Hons)) to work within the renewable energy industry with a Post Graduate Diploma in Mechanical Engineering.

He has worked as a renewables consultant for the Borders Machinery Ring where he was heavily involved in developing the wood fuel supply chain from farms.

From the renewable consultancy, he was offered the opportunity to work with Aeolus Power Wind Energy to set up their Biomass division and proceeded to design and manage the installation of biomass heating systems and District Heat Networks.

His exceptional understanding of biomass along with his practical background enables him to offer support, advice and guidance for farmers, landowners and businesses considering biomass.


Call or email Matt McKerrow for an introductory discussion

07801 437 863