G1 – New Instant Gas Water Heater Installation Supply and install 1 x Rinnai A26 instant gas water heater (external)

G3 – External Gas H.W.C. Replacement Supply and install 1 x new 130l Rheem Stellar Mains Pressure hot water cylinder outside

G2 – Instant Gas Water Heater Replacement Supply and install 1 x Rinnai A26 Instant gas water heater to replace