The Ferroli Kalis is a 24.3 kW instant condensing natural gas boiler for domestic hot water production. It uses a single-circuit stainless steel primary heat exchanger with no joints or welds, which helps it maintain high efficiency even when fitted to older heating systems.
- Produces domestic hot water
- 24.3 kW output
- Natural gas condensing boiler
- Single-circuit stainless steel primary exchanger, no joints or welds
- Maintains efficiency on older systems