We service & support boilers from:

Commercial Biomass Boiler heating & CHP Installation,
Servicing and Fuel Supply.


We are a Lincolnshire based renewable energy installation business. Our engineering team designs and installs highly efficient biomass heating and combined heat and power (CHP) systems.

It is our aim to reduce your fuel and power bills and to help you generate income from the government’s Renewable Heat Incentive (RHI). Our detailed understanding of the RHI scheme and its requirements enables us to supply you with biomass system and heating network which complies with the scheme rules. We assist all of our customers with RHI applications and provide ongoing assistance and advice.

Our team of Austrian trained engineers are able to service almost all makes & models of biomass boiler or CHP unit, including,


Herz, ETA, Heizomat, Gilles, Spanner & Arbor. To complete the package we provide high quality wood fuels.  We are a Biomass Suppliers List registered business.  Our biomass wood chip is sourced from sustainable woodland and is sized, dried and delivered within Lincolnshire, Leicestershire, Yorkshire, Derbyshire and Nottinghamshire. Based near Lincoln, we are ideally positioned to serve the East Midlands.

We consider that every project ranging from the largest biomass heating install to the smallest service job is an advert for our business.  You can trust NerG to provide you with expert advice, trouble free installation, top quality fuel supply and long term service support.

Our customers are our best sales team, Ask them.

This is what they've said about us. “I wouldn’t hesitate to recommend NerG”
“They know their stuff – and they care”
“We’d been baffled by 2 other companies. NerG made sense.”
“Completely competent – and dead straight to deal with”
Hear More From Our Customers

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Trust is really important to us, we won't let you down.

The best boilers

The best systems

We chose Froling boilers, manufactured in Austria for over 60 years, simply because they are the best. They are simple, extremely well built and knowledgeably backed up.
Read More
We design systems to be as simple as possible. By doing so, we make them reliable. It’s important to make your boiler or CHP system easy to use.
Read More

The best staff

The best advice

We have a great team of professional staff who just want to do a really good job. Our pride comes from making customers happy – ask them.
Read More
We understand big plumbing and we understand the RHI. So if it is a new system design or troubleshooting another company’s install we can sort it out for you.
Read More

Trust is really important to us, we won't let you down.

The best boilers

We chose Froling boilers, manufactured in Austria for over 60 years, simply because they are the best. They are simple, extremely well built and knowledgeably backed up.
Read More

The best systems

We design systems to be as simple as possible. By doing so, we make them reliable. It’s important to make your boiler or CHP system easy to use.
Read More

The best staff

We have a great team of professional staff who just want to do a really good job. Our pride comes from making customers happy – ask them.
Read More

The best advice

We understand big plumbing and we understand the RHI. So if it is a new system design or troubleshooting another company’s install we can sort it out for you.
Read More
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