Sizing, running-cost arithmetic, gas-to-electric switch examples, rebate stacking and quote checklists, with every step shown.
This group turns price factors into numbers you can check yourself. A heating and cooling quote is easier to judge once you have your own rough sizing, an idea of running costs and a list of what the installer should have included.
Begin with the heating and cooling quote checklist. The other guides each take one step: sizing a reverse cycle system in kW, reading energy rating labels and efficiency figures, running costs of gas versus reverse cycle heating, a full heat pump hot water net cost example, a whole-home gas-to-electric switch and the electrical extras such as switchboard upgrades that catch people out.
The installation cost estimator, heat pump payback calculator and upgrade loan calculator let you rerun every example with your own figures. Every figure in the worked examples is illustrative.
Worked Estimates and Checklists
How to read the Zoned Energy Rating Label on reverse cycle air conditioners, what COP and seasonal efficiency mean, and how to compare heat pump water heaters without a star label.
Worked Estimates and Checklists
An illustrative whole-home gas-to-electric budget for an Australian house, covering reverse cycle heating, heat pump hot water, induction cooking, gas disconnection and the yearly saving.
Worked Estimates and Checklists
A full illustrative calculation for replacing electric or gas hot water with a heat pump in Australia, from quote to incentives, running-cost saving and payback.
Worked Estimates and Checklists
A step-by-step checklist for reading and comparing split system, ducted and heat pump hot water quotes in Australia, from site inspection to final payment.
Worked Estimates and Checklists
A step-by-step method for comparing the running cost of gas heating, reverse cycle air conditioning and hot water options in Australia, with MJ to kWh conversions and supply charges.
Worked Estimates and Checklists
A worked method for estimating reverse cycle air conditioner capacity in kW from room size, insulation, windows and climate, and why installers should still do a load calculation.
Worked Estimates and Checklists
When a split system, ducted unit or heat pump water heater needs a new circuit or switchboard upgrade in Australia, what drives the cost and how to spot it before installation day.
