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How to save on water heating costs
Archived — this story has rotated out of today’s deck. It is kept here in full.
The gist
Australian experts share tips to cut water heating costs and emissions. Replacing aging systems may save more than lowering thermostat temperatures.
Background
Water heating is a significant household expense and a source of emissions. Experts suggest that simple tweaks like lowering the thermostat may yield minimal savings, while upgrading to more efficient systems like heat pump water heaters can offer larger reductions. The topic is trending as households seek ways to save money and reduce environmental impact.
How it unfolded
- Aug 30, 2026Articles discuss that lowering water heater temperature may save little and raise health risks, suggesting replacement as a stronger move.
- Sep 3, 2026A guide lists various energy-efficiency measures, including low-flow showerheads and heat pump systems, to reduce utility bills.
- Sep 5, 2026The Guardian publishes expert tips on saving water heating costs and cutting emissions.
Who’s saying what
- Experts
- Lowering thermostat may save little; replacing aging systems is more effective.
- Homeowners
- Some report that a modern unit might save only a couple of dollars by reducing temperature from 140 to 120 degrees.
- Manufacturers
- Cala promotes smart heat pump water heaters that heat water on demand to reduce waste and costs.
Still unverified
Specific savings percentages from thermostat adjustments are based on a commenter's example, not official studies.