Dynamic Boiler Optimiser

SIG DBO

SIG DBO is designed to reduce the time your boiler will burn gas or oil without affecting the temperature of your building, giving your boiler more intelligence.

The DBO has been adopted by Ramada Hotels. Find out the impact this has made by reading the case study

How it works
Benefits
Users
BRE Certification
Brochure

How it works

BMU Graphs

Select to view larger image

A boiler thermostat generally maintains temperatures in the boiler between 70 and 80 degrees C. The DBO ensures a boiler only responds to the needs of the building – not the boiler, which can often cool a couple of extra degrees and is sufficient to double the length of the cooling curve.

The principle is shown in the graph on the left where the boiler cycles across a 4 hour period are reduced from 8 to 5 and the overall burn time is reduced from 80 to 62 minutes.

A Savings Report can be downloaded and identifies exactly how this works in practice. The DBO takes itself in and out of circuit every 50 boiler cycles and measures the cooling and firing times for each cycle.

The DBO makes savings possible without the need for boiler temperature or footfall adjustments.

Benefits

  • BRE certified
  • Prolongs boiler life
  • Reduces dry cycling
  • Reduces CO2 emissions
  • Energy savings reporting
  • Suitable for both gas or oil boilers
  • Independently proven energy savings
  • 6 month return on investment (approx)
  • Thousands of units already in operation
  • Complements existing building and boiler control systems

The unit is unique in being able to evaluate savings by producing an online Savings Report, which can be downloaded and compares the results of the BMU being in and out of circuit on a continual basis every 50 cycles.

Users

Companies using the Burner Management Unit that are already benefiting from savings include:

  • Grosvenor Estates
  • East Sussex County Council
  • Telford and Wrekin Borough Council
  • Land of Leather
  • Merseyside Fire and Rescue
  • Colliers FM
  • David Lloyds Leisure
  • House of Fraser
  • Suffolk County Council
  • Ministry of Defence
  • London Fire Brigade
  • British Gas Business
  • Radisson Hotels
  • London Borough of Brent
  • London Borough of Croydon
  • Southampton City Council
  • Anglia Regional Co-Op
  • National Air Traffic
  • Mitchell and Butler Public Houses

BRE Certification

Savings figures achieved using BMU are demonstrated in Building Research Establishment Certificate No. CFP 348. Typically, savings on a typical winter day, when external temperatures range between 0 degrees  and 16 degrees C, are around 16%.

Different heating systems vary in dynamics and therefore savings may also vary.