AC on a Vistula River Barge in Warsaw
One of our most unusual projects was installing air conditioning on a river barge moored along the Warsaw stretch of the Vistula. The barge is used for sand pumping — operations run throughout the summer season, and the temperature inside the operator cabin can exceed 40 degrees Celsius. The owner approached us looking for a solution to provide comfortable working conditions in these extreme circumstances.
The main technical challenge was vibration generated by the barge engines and sand pumping system. Standard AC mounting brackets would not withstand the continuous shaking, so we designed custom anti-vibration mounts with rubber dampers. We installed the outdoor unit on the barge's steel railing using stainless steel clamps resistant to corrosion in the marine environment.
Humidity was another problem we had to address. Air over the river is significantly more humid than on land, which can lead to faster corrosion of AC components and issues with condensate drainage. We applied additional anti-corrosion treatment to the outdoor unit and designed a condensate drainage system that runs directly into the river, with a backflow prevention valve.
The electrical supply on the barge is a marine power network, which differs in specifications from standard land-based installations. We had to select an AC unit compatible with the available power supply and install appropriate electrical protection. We chose a compact Haier wall-mounted model with 3.5 kW capacity, which performs excellently in the confined space of the operator cabin.

The installation took two days — longer than a standard land-based job due to the need to adapt to working conditions on water. Cable and pipe runs were routed along the barge's steel bulkheads, secured with stainless steel clamps every 40 cm for stability. We paid particular attention to connection integrity — on a barge, there is no room for mistakes.
After commissioning, the temperature in the operator cabin dropped from over 40 to a comfortable 24 degrees Celsius. The barge owner was delighted — crew comfort improved significantly, which translated into better operational efficiency and safety. This installation confirmed that good air conditioning can work even in conditions as demanding as a river barge.
The barge project taught us a great deal about working in non-standard locations. Every such project requires an individual approach, thorough analysis of conditions and creative technical solutions. At LeoKlima, we are not afraid of challenges — if you have an unusual space that needs air conditioning, get in touch with us.



