Knowledge/Systems
Systems, and where each one suits
How each system works, where it fails, and how government policy is changing the Victorian market.
Everything in this section
- Does a Victorian gas heater have to be replaced with electric?If the owner lives there, a dead gas ducted heater doesn't have to go electric. Space heating was dropped from the rules. Rentals are different from 2027.
- How evaporative cooling actually worksThe gap between dry bulb and wet bulb sets how cold it can get. Efficiency decides how much of that you get. Humidity limits every brand the same way.
- Sizing an evaporative cooler on air changes per hour20 to 40 air changes an hour is the engineering range and 30 is the trade shortcut. Both are sourced. Then the 80 Pa check that decides your outlet count.
- How an indirect gas ducted heater worksIndirect means the flue gases never mix with the air you breathe. How it holds outlet temperature, what shuts it down, and the gas pressures it needs.
- Can you reuse the ducts on a gas to reverse cycle swap?The honest version. No engineering document covers reusing the ducts, so here's what's checked, what's our best judgement, and the seven things that go wrong.
- Hydronic heating, and what the rental rule does to itSteady radiant warmth, slow to respond. And under the 2027 rental rule, a failed gas boiler points to reverse cycle rather than an air to water heat pump.
Rather just ask someone?
Kevin has been in this industry for 30 years. If the answer isn't here, or you want it applied to a job you're quoting, have a chat.