If there is a faint smell of gas around your gas appliance, and you have confirmed all of the gas controls are set to the off position, then it’s likely the appliance is faulty and requires immediate replacement or repair. In this instance do not operate the appliance under any circumstance, we recommend you isolate your gas system, evacuate the home and call us immediately.
The recommended frequency for Carbon Monoxide (CO) testing by Energy Safe Victoria is every 2 years. Every property owner should have their gas appliances cleaned and tested very regularly as carbon monoxide is a clear gas, with no smell or taste. Exposure to carbon monoxide in prolonged small doses can cause long term serious health effects, and larger doses can be fatal.
Unfortunately newer instantaneous hot water systems have a specific requirement for gas lines and pressure. If your current gas line is old, and of the wrong diameter it will need to be upgraded so the new instantaneous hot water system works properly.