Borgerskolen

When comfort depends on who sits closest to the radiator.

Borgerskolen vinkelbygningen is a three-floor, 800m² school building of classrooms and shared spaces. Like many older buildings,its indoor climate depended on manual adjustments — and on whoever happened tosit nearest the radiators.
Before the project, each classroom depended on manual control — and on whoeversat closest to the radiators. This led to familiar problems:

• ‍Uneven heating: Radiators in the same classroom set completely differently. While some radiators were fully open, others were fully closed, making balance     impossible.
• ‍Cold window zones and mold risk: Closed radiators near windows left cold surfaces, while other areas overheated. ‍
• No automatic setback: Heating ran overnight and on weekends to avoid cold classrooms on Monday morning, driving up energy use.

In this 1901 uninsulated building, these patterns made comfort unpredictable, created overheating on sunny days, and pushed energy consumption far above what the school actually needed, while teachers constantly were trying to “fix” the climate by hand. The ambition for the project was clear: keep the building as it is — and make it work better through digital retrofit rather than reconstruction.

One platform. Three actions.

Climify brings three elements together that helpthe school stay comfortable throughout the day, even if the building is old andmanually operatedl:

1. Monitoring

• High-resolution IEQ sensors track temperature,humidity, CO₂, light, and presence in every room.
• Live data gives teachers and facility staff a clearoverview of how conditions change throughout the day.

2. Human feedback

• Teachers share how they want the room tofeel — much colder, cooler, as it is, warmer, or much warmer — directly throughClimify’s FeedMe app.
• Their feedback enters the control loop, helping the system adapt setpoints and maintain comfort throughout the school day.

3. Action & Control

Climify now controls theschool’s smart LoRaWAN thermostats, automatically coordinating the manyradiators in each classroom. On the second floor, Climify also controls theouter VELUX blinds. Together, these actions allow the system to:

• Balance heat across the room
• Reduce cold window areas and mold risk
• Prevent overheating on sunny days
• Activate night, weekend, and holiday setback
• Adjust setpoints based on real teacher feedback

The result is stable comfort forpupils and teachers — and a school that finally uses energy with intention.

Replacing guesswork with smart control.

With weather forecasts and predictive control, thesystem prevents rooms from overheating before a warm day even begins. Exteriorblinds are used proactively to keep temperatures stable — without installingany cooling units.

During the heating season, the same predictivelogic ensures precise radiator control, stable indoor temperatures, and efficientheating use. Adaptive control reduces energy use during unoccupied hours andautomatically preheats classrooms before pupils arrive in the morning and lowers heat during unoccupied hours.

Quick intervention, long term results.

After Climify’s intervention, Borgerskolen is ontrack to meet its goals. Based on the initial baseline and interventions,Borgerskolen is already seeing clear progress:

• 32% reduction in energy consumption
• 25% improvement in thermal satisfaction
• Full AT.dk and BR18 documentation
• Avoided installation of active cooling systems
• Room-by-room indoor climate improvements withmeasurable benefits for pupils and teachers

Why it matters.

A good indoor climate is more than comfort — it supportslearning, focus, and wellbeing. Studies from DTU and international researchgroups consistently show that:

• Cleaner air improves cognitive performance by 5–10%
• Reduced CO₂ improves focus and decision-making by up to 15%
• Stable temperatures support continuous attentionand reduce errors
• Healthy indoor environments help reduce sick leaveamong pupils and teachers

For a busy school like Borgerskolen, this meanscalmer classrooms, more effective teaching, and fewer daily frustrations forstaff and pupils.

See what our buildings can do.

Book a walk-through of the solution — we’ll show you how we can upgrade your buildings in weeks, not years.