“Daikin Altherma 3 R MT is a silent heat pump. The sound level of 35 dBA in low sound mode at a distance from 3 meters is comparable to being in a library,” Daikin added.

Daikin has released a line of residential heat pumps, using propane (R290) as the refrigerant, with outdoor unit dimensions of 1,122 mm x 1,330 mm x 600 mm. ... The Daikin Altherma 4 H heat pump.