"Sleep is the best cure for brain injuries and he is sleeping long hours."
Nevertheless, the "tight five" - Peter's partner Freida, his father and mother, brother Paul and sister Dee - are taking turns at making sure one or more of them are nearby as Peter battles his way back to health.
Brian Fisher praised the centre's staff. "They are extremely good at what they do and, in Peter's case, they are all remaining very positive."
Mr Fisher revealed the family has a long history of fire fighting, stretching back to the 1880s.
He himself served as a full-time fireman in Porirua and later remained as a volunteer, and is a Gold Star holder.
Likewise, Paul was a fireman for 15 years.