Design & Manufacture

Brookforge work closely with both ductwork and dehumidifier manufacturers to ensure a system is tailored to meet your exact requirements. Specifying the correct air handling unit needs to be taken into consideration at the design stage. Some of the factors which will impact on the specification of the unit and it’s associated ducting are:

Running conditions

For example:

  • Pool air temperature (31°C)
  • Pool water temperature ( 30°C)
  • Spa water temperature (38°C)
  • Pool hall humidity level (60/65%)


  • Type of application (domestic/commercial etc)
  • Average hours of usage per day (average/max)
  • Occupancy (average/max)
  • Hours per day the pool is uncovered (average/max)


  • Swimming Pool size
  • Spa size
  • Pool Hall volume
  • Exterior walls(inc. glass)
  • Interior walls (inc. glass)
  • Roof  (inc. glass)
  • Exterior Glass
  • Interior glazing
  •  Roof glazing
  • Overhead
  • Underfloor

The latest Part L regulations provide new implications for indoor swimming pool construction. The primary focus of Part L isCO2 emission reduction, with fixed building services using “no  more fuel and power than is reasonable”.

Brookforge specify bespoke air handling units, which take into account a number of factors specific to each pool hall they are destined for. This allows us to design systems based on calculated values, leading to highly efficient systems and more than complying with Part L regulations. Other areas of the Part L regulations, including commissioning and maintenance are also met.

Part F regulations relate to ventilation of new or newly refurbished buildings. This area focuses heavily on the air handling units themselves. We pride ourselves on only using the highest quality units which meet all aspects of the Part F regulations including heat recovery efficiency, fan power and control.