What Does a Bidet Cost to Run in Australia? Power, Water and Paper Savings

It is one of the most common questions we get before someone buys: will this thing send my power bill through the roof? Fair question. An electric bidet seat heats water and warms a seat, and both use electricity. Here is a realistic look at what it actually costs to run one in an Australian home.

Electricity: less than you would think

An electric bidet seat only draws meaningful power in short bursts, when it heats water for a wash, warms the seat, or runs the dryer. The rest of the day it sits in standby using very little. Typical use in a household adds up to a small figure on your quarterly bill, in the order of a few dollars, not tens of dollars.

Two design choices make a real difference:

• Instant (tankless) heating warms water only as it flows, so there is no tank being kept hot around the clock. This is the more efficient approach and what most modern seats use.
• Eco or energy-saving mode lowers the seat temperature during hours you do not use the bathroom. If your model has it, turn it on. It is the single biggest saving available.

Want zero electricity cost? A non-electric bidet uses none at all. The trade-off is cold water only, and we cover that fully in our electric vs non-electric comparison.

Water: a rounding error

This one surprises people. A bidet wash uses roughly half a litre of water, far less than a single toilet flush, which uses several litres. Compared to the water already going down your toilet every day, the bidet barely registers on your bill.

There is a bigger picture too: manufacturing toilet paper is water-intensive. Using less of it saves considerably more water than the bidet consumes.

The offset: toilet paper

Here is where the maths turns in your favour. Households that switch to a bidet typically cut toilet paper use dramatically, and most people keep a little for drying and that is it. Over a year, for a family, that is a meaningful chunk off the shopping bill, and it tends to more than cover the electricity the bidet uses.

If your model has warm air drying, paper use drops further still.

Small features, small draw

Comfort extras like a night light use very little power. An LED running for a few hours a night is negligible next to heating water. If you are trying to trim every watt, the seat heater is the setting worth adjusting, not the light.

What about maintenance?

Ongoing costs are close to zero. There are no cartridges or consumables to replace on a bidet seat. The nozzle on our electric models is self-cleaning, so routine care is little more than wiping the seat as you would any toilet seat. Every bidet seat we sell comes with a 2-year warranty, and spare parts are available if you ever need them.

So is it worth it?

Looked at purely as a bill, an electric bidet seat costs a few dollars a quarter in power and roughly nothing in water, offset by what you stop spending on toilet paper. In other words, the running cost is not the thing to base your decision on. The upfront price and the comfort features are.

That is the honest answer. If you want to spend nothing on running costs at all, go non-electric. If warm water and a heated seat sound worth a few dollars a quarter, go electric.

Frequently asked questions

Does a bidet seat use power when I am not using it?

Only a small standby draw, plus keeping the seat warm if that feature is on. Eco mode reduces this further.

Will it increase my water bill noticeably?

No. A wash uses a fraction of what a single flush uses.

Do I still need toilet paper?

A little, for drying, unless your model has warm air drying, in which case many people stop using it almost entirely.

Are there any consumables to replace?

No cartridges or filters to buy on our models. The nozzle is self-cleaning.

Ready to look at models? Compare features and prices on our comparison page, or browse electric bidet seats. Free shipping over $200, same-day dispatch before 1PM, WaterMark certified with a 2-year warranty.