We also do heat pumps


At Commercial Biomass Ltd, we're not just limited to biomass boilers. We also have the MCS accreditation to install heat pumps, including Air Source, Ground Source, and Open Source. We understand that some locations may have constraints that make biomass boilers unsuitable, which is why we offer a range of renewable energy options.

If you're looking to upgrade from a fossil fuel appliance to a renewable one, the Boiler Upgrade Scheme offers a one-off grant of up to £5,000 for rural areas. While this grant applies to biomass boilers in rural areas, it's not available if you're on the gas grid or if your house has ever been connected to the gas grid. However, the grant is always available for heat pumps, and if you opt for a ground source heat pump, the grant goes up to £6,000.

Contact Commercial Biomass Ltd today to learn more about how we can help you switch to renewable energy with a heat pump installation.


Used Biomass Boilers with RHI Tariffs

At Commercial Biomass Ltd, we’re always being offered used biomass boilers with RHI tariffs left on them. While the boiler itself may not be in good condition, you can change the boiler and still keep the tariff. This means that we quite often have old log boilers or poor quality pellet boilers offered to us to sell on the owner’s behalf. The price of these boilers reflects their usefulness and the remaining tariff.

On our Offers page, you can browse through the boilers that are currently available. Some of these boilers can pay for themselves in as little as two years, and many go for the price of one year’s RHI return if the boiler is no good. Better boilers will be priced higher due to the residual value of the boiler itself.

So, if you’re looking for a cost-effective way to switch to this form of energy, consider our used biomass boilers with RHI tariffs. Visit our Offers page today. Learn more about available boilers that can help you save money and reduce your carbon footprint.

The current situation with biomass

We understand that the cost of biomass fuel is an important consideration for our clients. Currently, chip prices are stable, with the cost ranging from free to 8p/kW depending on whether you make your own chip or buy it from a supplier. The price also depends on haulage costs. Log prices have risen slightly to around £80 per tonne. If you buy in wood in the round and then hire an agricultural contractor to chip it for you, the cost heating on chip comes out around 4p/kW, which is still the cheapest form of heating, especially for commercial and industrial businesses.

Pellet prices are finally on their way down and are once again cheaper fuel than heating oil. Now down to around 8p/kW. The original increase was attributed to the conflict in Ukraine.

If you’re looking to save money on your heating costs, consider converting your boiler to run on chip fuel. Some boilers can be easily converted. We’ve been asked by several clients to make the conversion for them. This is a cost-effective solution that can help you save money in the long run. Switching over to pellet from chip will change your time between fills to around three times what is was with chip. The reason for this is that pellets area higher density fuel in storage as well as being of a higher calorific value than chip.

Contact Commercial Biomass Ltd today to learn more about how we can help you with biomass fuel prices and conversions.

Biomass Boiler Specialists

Commercial Biomass Ltd is one of the UK’s leading renewable heating specialists and biomass boiler installers. With well over 300 boiler installations and over 40 years of commercial heating experience, we help customers make the right renewable energy choice for their home or business. Our skilled workforce are from the construction and mechanical services industries, with eco-credentials second to none.

We are Windhager, ETA, Gilles, Hargassner and Heizomat Certified partners, and the only installer throughout Somerset and Devon to be certified with all these manufacturers. We are also Sokratherm-trained to install and maintain high efficiency Natural Gas powered CHP units and Gas Safe registered for both domestic and commercial work.

In addition to commercial biomass boiler installation and supply, we act as a one-stop-shop for our domestic biomass boiler customers to use renewable energy to heat their home.

Additionally, a biomass boiler allows businesses, commercial premises (including factories, golf clubs, warehouses and schools) and domestic customers make savings of up to 80% on their energy costs.

Zero emission wood chip boiler

Windhager boilers

We now supply, install and maintain zero emission wood chip biomass boilers manufactured by Windhager. The PuroWIN is the cleanest wood chip boiler in the world. With virtually undetectable emissions. This is due to a very well thought-out design. The word ‘innovative’ is too often used to describe the mundane and the ordinary by advertising executives searching for a superlative. All without actually considering the meaning of the word. Windhager have developed a combustion chamber unlike any we have seen in conventional biomass boilers… read more

Climate Change? Do your bit!

Wood is cleaner in terms of carbon output than any other commonly used fuel. Source: Oftec

Want to do your bit to avert climate change? Switch to wood fuelled heat. Good quality biomass boilers are clean burning. Their output is far less carbon dioxide than any other commonly used heating appliances. Electrostatic precipitation and clever burning techniques keep air quality pristine. Low in particulate matter, low in carbon dioxide emissions, low in NOX emissions. Biomass is clean and green.

Think you’re saving the planet with a heat pump? Look at the facts — assuming you’re in an old house trying to make an air source heat pump perform with oversized radiators, your CoP is likely to be around 3:1 at best. Meaning that for every 3kWh of heat you get, you use 1kWh of electricity and the other 2kWh comes from the warmth of the air outside. One third of 0.519 is 0.173, which is nine times worse than burning logs.

Meanwhile, it is also four times worse than pellets and nearly eleven times worse than burning wood chip. Why is the government pushing heat pumps when we don’t have the cable infrastructure to run them all? And the majority of the electrical grid is still on fossil fuels and up to 70% of the power produced is lost in transmission? It makes no sense. The replacement for the failed Green Homes Grant scheme funds heat pumps to the tune of £5,000 per household. It has been announced that biomass boilers will be included in the new scheme. After having been excluded in earlier rounds of proposals. Therefore, even now, homes will only be eligible for biomass grants if they are off gas grid with a rural/urban indicator of D or lower.

High Efficiency Commercial Gas Boilers

Commercial Biomass Ltd is Gas Safe registered (registration number 51456). Because of our low registration number, unquestionably it tells you how long that registration has stood for – from back in the day when Corgi used to administer the register!
We can supply and install commercial and domestic high efficiency gas boilers from Vaillant and other manufacturers.

Commercial Gas Boilers


Finally, Commercial Biomass is trained and certified by Sokratherm GMBh for the installation of high efficiency natural gas fired Combined Heat & Power systems.

gas fired Combined Heat & Power systems

Contact Commercial Biomass to book your free biomass boiler consultation

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Key Benefits of Switching to a Biomass Boiler

  • Cost Effective – cut fuel costs by up to 80%
  • Biomass Boilers use Renewable Fuel
  • Biomass is Eligible for Government Funding (BUS Grant)
  • User Friendly
  • Biomass is Efficient Heating
  • Reduce your emissions by 90% with Biomass