Bimetal Condens M55 Inka M55: The most compactWith only 250 millimetres depth and capacity of 87 litres, Inka M 55 is the most compact boiler of its category. These features make it the ideal solution when creating heating systems, even in the narrowest of rooms. The M55 series includes a range of accessories for creating systems in cascade up to a maximum of 8 modules for a total power of 440 kW.