Fulton has supplied and commissioned the UK’s first VSRT‑125 vertical steam boiler at Bristol Beer Factory’s new Ashton Vale brewery, delivering powerful, responsive steam that keeps pace with an ambitious brewhouse and a fast‑growing beer business.
From day one, the VSRT‑125 has enabled Bristol Beer Factory to “fully achieve what the new brewhouse is designed and set out to do”, providing high‑quality steam, rapid warm‑up and impressively low gas use that align with the brewery’s sustainability‑led design.
Why Bristol Beer Factory chose Fulton
Bristol Beer Factory already relied on Fulton steam at its previous site, so when the move to Ashton Vale demanded a step change in capacity and efficiency, the brewery team benchmarked all the major boiler manufacturers in the UK.
Quotes came in and Fulton did not offer the lowest headline price, yet the VSRT‑125 delivered something the others could not: a 10:1 turndown ratio compared with 6:1 or 7:1 alternatives. That wide turndown promised precise control across a brew day, with the boiler ramping up instantly when steam is drawn and backing off when demand falls.
Tristan Hembrow, Head Brewer at Bristol Beer Factory, also wanted the project to reflect the brewery’s Bristol roots. Fulton’s Bristol manufacturing base carried real weight. Supporting a local engineering specialist reduced transport‑related carbon and kept investment in the city, which fitted the brewery’s community values as much as its technical brief.
Prior experience tipped the balance. Tristan had worked with Fulton boilers at two previous breweries and describes them as “steady as a rock, reliable and easy to use.” Once shown the basics, his teams could quickly understand how the boiler behaved and diagnose any issues. That confidence in Fulton’s technology and support underpinned the decision to specify the VSRT‑125 for the new site.
Proving the VSRT‑125 before it reached site
Before committing, Bristol Beer Factory visited Fulton’s Bristol facility to see the VSRT technology in action.
The live demonstration made an immediate impression. The team watched a VSRT boiler start from cold and reach operating temperature in around 30 minutes, compared with the couple of hours they were used to on winter Monday mornings at the old brewery. Tristan and his managing director left impressed not only by the boiler’s performance but also by the scale and organisation of Fulton’s warehouse, full of new and refurbished boilers in all sizes.
That rapid start‑up became a decisive factor. Shorter warm‑up windows translate directly into more productive brewing hours and less wasted fuel, particularly at the beginning of the week or when production schedules change at short notice.
Seamless commissioning and intuitive daily operation
Fulton configured and commissioned the VSRT‑125 to match the brewery’s specific steam profile. In practice, Tristan reports that the boiler: “does what it needs to do. It simply responds as the plant draws steam, ramping up smoothly and maintaining pressure without drama.”
The generous VSRT’s 10:1 turndown gives Bristol Beer Factory remarkable control across widely varying loads. Even when the brewhouse, cask washer and keg washer all demand steam simultaneously, the brewery has never seen a drop in steam performance. There is no noticeable hysteresis on steam pressure, just a steady, reliable supply that keeps every process step on track.
Day‑to‑day operation is deliberately straightforward. Brewers use a setback mode every evening at the end of production and bring the boiler out of setback for the first brew of the morning. Tristan describes the routine as “literally a one button and a one valve process”. The team isolates the steam into the building each night, then simply reopens the main valve onto the steam pipework when brewing begins.
That simplicity matters because brewers focus on wort, hops and fermentation, not boiler plant. An interface that operators describe as “couldn’t be easier” reduces training time, avoids operating errors and supports consistent production.
Fulton’s design also reduces manual intervention around water quality and safety. Automatic blowdown removes another task from the brewing team and avoids the wasted time associated with shutting down and cooling a boiler to perform manual blowdowns at the end of the day. Tristan welcomes this as “one less job for the brewer and another contribution to efficient, repeatable operation.”
Steam at the heart of an efficient brewhouse
At Bristol Beer Factory, steam sits at the centre of a modern, highly productive brewhouse, with the VSRT‑125 feeding the mash conversion vessel, enabling precise step rises that give the brewery the control they want over mash profiles and final beer character.
The boiler also drives the copper kettle which, thanks to the abundance of available steam, ensures the wort is already boiling by the time the last run‑off enters the vessel. This removes idle standing time and delivers what is described as about as close to “you can’t get more efficient” as possible in terms of wort run‑off and boil.
Throughout the boil, the VSRT‑125 supports a vigorous, controlled rolling boil that every brewer expects for flavour development, protein coagulation and hop utilisation, followed by a swift whirlpool stage that keeps the brew day moving.
Fulton steam also serves the hot liquor tank, which now reaches temperature rapidly. This gives the team more flexibility to schedule brews and CIP cycles and reduces the need to pre‑heat hours in advance.
Beyond the brewhouse vessels, the VSRT‑125 powers a dedicated CIP system with four 1,000 litre tanks running two CIP streams around the brewery. This robust cleaning capacity supports hygienic, reliable production while making full use of the boiler’s responsive steam supply.
This breadth of steam use amplifies the impact of a high‑quality supply. The VSRT‑125’s tall steam space and steam chest volume produce a very dry steam, so heated surfaces across the process do not get wet and lose efficiency. That dryness, combined with responsive modulation, translates into noticeably faster warm‑up times on tanks and packaging equipment.
Tristan cites the cask washer and keg machine as an example: “At the old site, the same machine took tens of minutes to reach temperature. At our new brewery, it now achieves target temperature in minutes. The difference is stark enough that the brewing team no longer needs to switch equipment on an hour before use. Operators can bring kit online themselves, just minutes before they need it, which reduces downtime and improves overall labour utilisation.”
Efficiency, sustainability and real‑world savings
Fulton designs the VSRT range to maximise both combustion and system efficiency, and the Bristol Beer Factory project showcases how that performance plays out on a live site.
The improved steam quality and precise modulation echo the results Fulton has demonstrated elsewhere across brewing, distilling and food processing applications, with Bristol Beer Factory experiencing similar behavioural benefits, including quicker warm‑up times, less waiting, and more productive brewing hours for every unit of fuel consumed.
For Bristol Beer Factory, sustainability sat at the forefront when designing the new brewery. The VSRT‑125 supports that vision by reducing fuel use and associated carbon emissions while enabling a higher‑performing brewhouse. Tristan recognises that energy efficiency underpins not only environmental goals but also financial resilience: saving gas protects margins at a time of volatile energy prices.
As Fulton’s Leigh Bryan highlights: “True sustainability now blends environmental responsibility with financial sustainability. A steam boiler that cuts fuel use and carbon output while supporting higher throughput gives a brewery the double bubble whammy of lower emissions and lower operating costs.”
Future‑proof steam for a growing brewery
The Ashton Vale site represents a major step forward for Bristol Beer Factory, with a brewhouse and cellar designed to support growth in volume and range over the coming years. Fulton sized the VSRT‑125 to preserve significant headroom so that steam capacity does not constrain that ambition.
Tristan regards the boiler as one less thing to worry about, and when asked to brew more beer, he does not need to question whether the steam plant can cope: “The VSRT‑125 has ample capacity to support expansion and that confidence enables the brewery to plan new products and higher volumes knowing that core utilities will not become a bottleneck.”
The project also delivered some very practical lessons and Tristan’s advice to other breweries designing new boiler houses is disarmingly simple: “Don’t put the roof on the boiler house until the boiler’s in!” At Ashton Vale, the team had to remove the roof to get the VSRT‑125 into position, a memorable reminder that clearances must extend well beyond boiler height and allow comfortable installation and maintenance access.
Delivering on the promise
Perhaps the strongest endorsement comes from the absence of surprises. Tristan reflects that the VSRT‑125 has not produced unexpected benefits because it has delivered exactly what Fulton promised. In his own words: “The VSRT is allowing us to fully achieve what the new brewhouse is designed and set out to do. The quality of steam and speed, and low gas usage, also align with the design of this brewery.”
For Fulton, the UK’s first VSRT‑125 at Bristol Beer Factory demonstrates how modern vertical steam technology can unlock the full potential of a contemporary brewhouse, combining resilient performance with tangible efficiency gains and a clear path towards a lower‑carbon future.
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