As part of the Heart Failure Family Trial presently being conducted in Denmark, this qualitative process evaluation explored the perceptions of seven practicing cardiac nurses who offered family nursing therapeutic conversations (FNTC) to families in three heart failure outpatient clinics. FNTC were guided by the Calgary Family Assessment and Intervention Models. Data consisted of 34 case reports written by the nurses which documented the use of FNTC, including family responses to the FNTC. A focus group interview with the six of the nurses about their experience of offering FNTC was also conducted. Content analysis was performed using a combined deductive and inductive process. Nurses reported developing a distinct, closer, and more constructive relationship with the patients and their families and reported FNTC increased family bonding and strengthened family relationships. The nurses considered FNTC to be feasible interventions in the routine care provided in heart failure outpatient clinics.