As a leader in this field, the "ejona" makes the design, supply and installation of all kinds of central heating. References include:
- City Heater "Thermokos"
- Klina Municipality
- Raiffeisen Bank Kosovo
- Prishtina Central Hospital
- Kosovo Correctional Service
- Shopping centres
- Various factories
- Municipal buildings
- Various residential buildings
- Various business buildings
- Private homes, etc.
