Boiler Economiser Replacement Case Study, Scottish Distillery | Turnbull & Scott

A maintenance team at a major Scottish spirits site needed to replace a boiler economiser during ongoing plant upkeep on a live, operational facility.
An economiser recovers heat from flue gases to preheat feedwater, so the replacement had to match the existing thermal duty and fit the available space without altering surrounding pipework.
Replacing critical heat recovery equipment on an active site required more than supply. The customer wanted clear visibility of technical progress at each stage.
Production drawings were a priority, with regular updates needed so the team could verify the design and approve it without delaying the wider programme.
As the project neared completion, focus shifted to logistics, with firm delivery timing needed so the site could arrange personnel and unloading equipment for a large, heavy unit.

Turnbull & Scott specified a cartridge type heat exchanger with an integrated bypass, allowing flue gas to be diverted around the unit for maintenance and operational control.
The unit was engineered in carbon steel with finned tubing selected to deliver the required duty within the site's existing geometry.
Turnbull & Scott managed the project across its full lifecycle: quotation, commercial review, technical development, production and delivery coordination.
A full set of fabrication drawings was issued at the point of order, giving the team the documentation needed to verify and approve the design.
Commercial detail was reviewed throughout the year long cycle, keeping the final package aligned with the customer's requirements.
Delivery was coordinated against a clear lead time so the site could prepare equipment, labour and unloading resources ahead of arrival.

Turnbull & Scott supplied a bespoke replacement economiser through a complex sales cycle spanning a full year.
The customer received a purpose engineered cartridge unit with bypass capability, restoring heat recovery performance while fitting cleanly into the existing plant.
Clear communication around technical progress, commercial detail and delivery logistics removed uncertainty and let the site team plan with confidence.
The real value lay in giving an operational site the specification certainty and delivery visibility needed to coordinate its own resources.
The project reflects Turnbull & Scott's strength in managing technically specific replacement work over extended timescales, combining engineering capability with practical project coordination.