Starting points and points for attention:

• Daylight in wall and/or roof approx. 15%. Floor construction concrete on sand.
• Take into account extraction systems, scaffolding and crane gantries.
• Consider the number and position of service doors.
• Note any heat gains from machinery and lighting.
• All capacities (in kW) apply at an indoor temperature of 15°C and an outdoor temperature of -10°C.
• For each degree Celsius more or less, the output must be corrected by 4.0%.

• The heating capacity table shows under Rc = 2.5 and a capacity 5,000 m³ 80 kW (at 15°C).
• To achieve a room temperature of 17°C, the required capacity is: 80 kW + (2 × 4.0%) = 86.5 kW.
• Read off the required circulation volume: minimum 15,000 m/h.
• Depending on the layout of the hall, divide the power between 1 or more air heaters. This gives better heat distribution.