Do you look at your retirement savings statements and feel like you're sending your money down the drain? Do you deposit more money each paycheck into your retirement account, but find the balance goes down, not up?
Pssst, want to invest in a "sure thing?" No, this isn't a scam. It's a device that has no moving parts to break down, but is certain to save you energy, and thus save you money by lowering your utility bills. When we all take showers and baths, wash the dishes or clothes, and wash our hands, we send heated water literally down the drain. That typically represents 80%–90% of the energy used to heat water in a home. Drain-water (or greywater) heat recovery systems capture some of this energy to preheat cold water entering the water heater or going to other water fixtures.
How It Works
In its simplest form, a drain-water heat recovery (DHR) unit is simply a copper heat exchanger that replaces a vertical section of a main waste drain. As warm water flows down...
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