Can Switching to a Dual-Flush Toilet Save Heat?

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The water that sits in your toilet tank robs space heat from your home during the winter — but is it a little bit of heat or a lot of heat?

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[](http://www.greenbuildingadvisor.com/blogs/dept/guest-blogs/can-switching-dual-flush-toilet-save-heat)

First off, my wife just joked that I used a photo of a "male bathroom": seat up and two rolls of toilet paper.

Regarding the heat savings mentioned in the headline, we'll see... I haven't done the math yet. But it is a minor claim occasionally made alongside the claim that these toilets save water.

Some manufacturers of dual-flush or low-flow toilets make extravagant claims on water savings; and tacked onto the end of the marketing copy there is sometimes a blurb on heat savings:

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* "Saves water"
* "Saves lots of water"
* "Saves water"

URL: http://www.greenbuildingadvisor.com/blogs/dept/guest-blogs/can-switching-dual-flush-toilet-save-heat