Waste water heat recovery system

This new technology for water heaters can help save energy. It works with standard, solar, tankless, electric or gas water heaters.
In this video: A waste water heat recovery system uses water that's already been heated to help heat more water. It saves energy and money.

More from this category

Tricks for saving water and energy

Person writing on a hot water heater

Saving water and energy is good for the environment and good for your wallet. Everyone in the family can help.

learn more

Whirlpool tubs

man turning on a faucet on a whirlpool tub

For the best energy savings, look for models with variable-flow pumps and integral water heaters.

learn more

Choosing the best water heater

Water heater expert talking to Megan

There are different types of water heaters you can purchase, including tank, tankless and solar technology.

learn more

Saving energy with sump pumps

Man pointing at sump pump equipment

Sump pumps use a lot of energy. Find out how to minimize how often yours turns on.

learn more

Installing a low flow showerhead

Low-flow showerhead being installed

Save up to $250 per year with this one simple swap.

learn more

Water heater installation

Man installing a water heater

We recommend having your water heater professionally installed. Learn what to expect.

learn more

Kohler Test Lab

Finger pressing a shower technology panel

Innovation is just a turn of the faucet away at the Kohler manufacturing plant. Find out how new products can help you save water and money.

learn more

Water softeners

Water softener

Soft water improves dishes, showers, and extends the life of your appliances. Find out what you need to know about installing and maintaining a water softener.

learn more