THE WATER HEATER(S) SHALL BE RHEEM CONTINUOUS FLOW GAS MODEL No. A871024 WITH AN HOURLY GAS INPUT OF 188 MJ (NATURAL AND LPG) WITH A HOT WATER FLOW RATE OF 24 LITRES / MINUTE OVER A 25°C RISE. THE WATER HEATER(S) SHALL BE APPROVED TO THE NEW ZEALAND STANDARD NZS5262. THE WATER HEATER SHALL BE FACTORY ASSEMBLED AND TESTED. THE WATER HEATER(S) SHALL INCORPORATE FLAME SAFE TECHNOLOGY TO AUTOMATICALLY SHUT DOWN THE SYSTEM IN THE EVENT OF A FAULT. THE WATER HEATER(S) SHALL INCORPORATE A CONTROLLED BY-PASS TO ENHANCE TEMPERATURE CONTROL.