The Bauf Hamme R290 monoblock heat pump runs on natural refrigerant R290 (GWP=1), achieving a peak COP of 5.5 at A7/W35 and SCOP A+++ at both 35°C and 55°C flow temperatures — with DHW class A+. It covers the full −25°C to +35°C ambient heating range and delivers leaving water temperatures up to 80°C, making it a direct, no-compromise boiler replacement across 4–16 kW in single- and three-phase supply. The monoblock architecture houses all hydraulic components in the outdoor unit, with electrical connections handled from a dedicated indoor wiring centre — keeping installation clean and straightforward in any weather. Safety for the mildly flammable R290 is engineered in from the start: silver-brazed refrigerant circuits, an integrated refrigerant separator, and a fully sealed control cabinet, with sound pressure levels starting at 44 dB(A).