Heat Recovery Economisers

Efficient economiser units use waste industrial and flue gas heat exchange to produce energy to preheat boilers

We will reduce heat wastage from your industrial flue gas with heat recovery economisers produced in-house to your exact requirements. Efficiently turn waste industrial heat into a useful energy source for water heating, process or space heating, or generating power.

Read more >
Our end-to-end service –from design and manufacture through to installation and commissioning –makes our boiler and condensing economisers incredibly cost-effective and reliable to save you thousands of pounds over time.
Turnbull & Scott manufactures our own heat recovery economisers from extended surface finned tube in a variety of sizes, pitches, materials and surface treatments. We can thus configure economisers to handle many fuel types and challenging heat recovery applications.

Installation of economiser units within your exhaust system stack can greatly reduce the exhaust temperatures. Heat recovery usefully reuses the energy wasted within the flue and often improves overall energy efficiency by around 5%. Contact us for a project calculation.

How does an industrial boiler heat economiser work?

  1. An extended-surface finned tube heat exchanger is fitted inside an exhaust flue.
  2. The heat exchanger absorbs the heat from exhaust gases.
  3. This energy is used to heat the water in a water pipe system, for example for heating water being fed into a boiler.

This is a highly effective way of pre-heating boiler feed water: as an example an all-steel economiser battery for a 5,000 kg/hr steam boiler can pre-heat boiler feed water from 85ºC to 120ºC using exhaust flue gas at 210ºC.

Economiser heat exchangers mean greener energy efficiency

Heat recovery improves efficiency in your industrial plant’s activities; this results in a reduction in overall pollution and carbon footprint and reduces your overall costs in the long term as your fuel consumption is cut. Installing and maintaining stack economisers that are customised to optimise your system we look to:

Reduce loss of heat from flue gases
Improve heat transfer throughout the system
Recover heat from condensate to pre-heat boiler feed water


No products were found matching your selection.

View our case studies

Alan Simpson Poultry Farm

560m Gilled Tube Manufacture & Installation

Read More

Greencroft Bottling Plant

Warehouse Thermolier Space Heating

Read More

Joules Ltd

600kW Biomass Plant Room & External Fuel Silo

Read More

Manchester University

Pre Fabricated Boiler House with Installation

Read More

Hawick Community Hospital

Containerised Boiler House

Read More

Sellafield Ltd

Bespoke Heat Exchangers

Read More

Mungoswells Farm

Biomass Boiler & District Heating Installation

Read More

Woodend farm

Biomass Boiler & Bespoke Heat Exchanger

Read More

Simpsons Malt

Process Pipework & Mechanical Services

Read More

Teho Ltd

Bespoke Panel Heaters for Offshore Project

Read More

Chester Zoo

Bespoke curved Gilled Tube

Read More

Ask about our Heat & Boiler Economisers