Guntamatic: The Biostar Range
These highly efficient wood pellet boilers are capable of heat outputs of 12, 15 or 23kW. They can also be fitted without a buffer tank, which makes them the ideal choice for domestic installations and light commercial use where space is at a premium. We have installed several in the Wye Valley and further afield and customers have been delighted with the performance of this advanced system.
Every boiler in the range is RHI compliant and MCS accredited.
Seriously Low Emissions
The Biostar's emissions have been measured as significantly below the maximum emissions set out as a requirement for the RHI. The values of each model are in the table below and you can see the certificate here.
The Biostar can hold up to 140 litres of wood pellets in the hopper attached to the boiler. This can run the Biostar for one to 3 days, depending on usage.
Stock up on ENPlus A1 pellets and these can be blown directly into a larger fuel store upon delivery. Your fuel store can be located up to 20m from your boiler and set up so that the pellets are fed into the 140 litre day hopper automatically by vacuum tube.
Automatic Ignition and Lambda Probe
These boilers are designed to achieve a quick and easy start with automatic hot air ignition and a lambda probe to add just the right amount of oxygen. The result is optimum combustion and optimum efficiency.
The Biostar features Guntamatic’s innovative self-cleaning system, where turbulators move constantly to keep heat exchanger tubes free from buildup of deposits.
Your Biostar boiler comes with a touch screen panel fitted as standard. This puts you in control and gives access to efficiency, fault and maintenance information. Plus, if you opt for the additional GSM module, you’ll be able to control the boiler’s settings from your smartphone.
Efficiency in Modulation
Biostar boilers are famed for their ability to maintain 96% efficiency between 26-100% of output. So you’ll enjoy maximum value for money through a more complete burn.
Low Ash Content
For the volume of fuel, just 0.5-1% ash is generated, meaning that you’ll only need to empty the 38 litre ash bin every six to eight weeks.
The Biostar comes with the option of fitting a Flex fuel delivery system. This consists of a vacuum hose which connects your boiler to a custom-built fuel store (of any size) and feeds pellets into your boiler via an auger.
When planning your fuel store, evaluate your likely usage so that you can build a store that’s big enough. Ideally, you shouldn’t need to refill it more than three or four times a year.
The outfeed auger is available in a variety of lengths up to 5.4m to fit your custom-built fuel store:
||Auger Length Options
||1,080 – 1,559mm
||1,560 – 2,039mm
||2,040 - 2,519mm
||3,000 – 3,479mm
||3,480 – 3,959mm
||3,960 – 4,439mm
||4.440 – 4,919mm
||4.920 – 5,399mm
Prefabricated ‘Box’ Fuel Store
We also offer a prefabricated fuel store solution that’s suitable for keeping up to 9 tonnes of ENPlus A1 and A2 wood pellets. The storage box arrives flat-packed, has a stable, steel base, filling tubes, a suction coupling and it’s adjustable in height. Also supplied is a vacuum tube for feeding the pellets into the boiler.
The Box System Comes in Five Sizes:
|170 (w) x 170 (l) mm
||2 - 3.4 tonnes
||3 - 5.2m3
||210 (w) x 210 (l) mm
||3 - 4.7 tonnes
||5 - 7.5m3
|290 (w) x 170 (l) mm
||4 - 5.4 tonnes
||6.1 - 8.3m3
|250 (w) x 250 (l) mm
||5 - 6.7 tonnes
||8.3 - 11m3
|290 (w) x 290 (l) mm
||6.5 - 9.1 tonnes
||6.5 - 14.1m3
‘W’ fuel store
Another option for your Biostar boiler, the W is an integrated, 400-litre fuel store which can hold enough pellets to see a well-insulated building through for up to a month.
50 Years’ Experience Built In
Having recently hit their 50-year anniversary, it’s clear that Guntamatic are market leaders in renewable energy technology. Experience means that every boiler they make is created with huge industry expertise, and the Biostar is no exception.
Parts Available for 20 Years
Guntamatic are unique amongst biomass boiler manufacturers as they make all of their own structural components. Every single part of the Biocom is of the highest standards, offering you maximum return on your investment, low maintenance requirements and a long service life. You can get hold of spare parts easily as Guntamatic guarantees to make parts available for 20 years.
European Training Academy
They put an equal amount of effort into developing installers at their European Training Academy, so an authorised, highly trained and experienced engineer will fit the system for you.