Private specialist outpatient clinicClinic in Gniezno: heat recovery ventilation with cooling
- Noise in consulting rooms
- 31-34 dB(A) in spot checks, design target about 30-35 dB(A)
- Waiting room temperature in the July heat
- 24-25°C with 33°C outside
Case studies
Case studies
Selected projects in family homes, offices, a clinic and a warehouse in Wielkopolska: scope of work, equipment and first-season results.
Private specialist outpatient clinic
Distribution company, owner-occupied warehouseWarehouse in Września: heat pumps instead of gas radiant heaters
- Gas for space heating
- no longer used
- Heating energy cost, 2025/26 vs 2024/25 season
- about 35-40% lower (estimate, adjusted for degree days)
Family home, private clientA 1986 house in Luboń: from a coal boiler to a heat pump
- Electricity for heating and hot water, 2025/26 season
- about 5,900 kWh
- Flow temperature at design outdoor temperature
- 48°C (calculated), 45-47°C on the coldest January days
Accounting office, tenantAccounting office in a Jeżyce tenement: VRF and ventilation over weekends
- Room temperature, summer 2025
- 23-24°C with over 30°C outside, previously up to 29°C
- CO₂ in the meeting room during meetings
- usually below 1,000 ppm (spot measurement)
Family home, private clientNew house in Dopiewo: ground source heat pump and heat recovery ventilation
- Electricity for heating and hot water, 2025/26 season
- about 3,100 kWh
- Underfloor flow temperature on the coldest days
- 31-33°C