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2. Here's How Often You Should Drain Your Water Heater ... - AOL

   www.aol.com/lifestyle/heres-often-drain-water...

   Step 3: Attach a water hose to the drain valve at the bottom of your water heater and run the hose outside or into a nearby drain. You can use any generic hose for this step, and a garden hose ...

3. What to set your thermostat to this winter: U.S. Department ...

   www.aol.com/set-thermostat-winter-u-department...

   During really cold weather, open the cold and hot water tap and let the water run at a trickle to keep the water in the pipes moving. If a faucet does not have separate hot and cold water handles ...

4. Air gap (plumbing) - Wikipedia

   en.wikipedia.org/wiki/Air_gap_(plumbing)

   When installed and maintained properly, the air gap works as described above, and prevents drain water from the sink from backing up into the dishwasher, possibly contaminating dishes. To further illustrate the air gap, consider what could happen if the air gap were eliminated by attaching a hose to the faucet and lowering the hose into a sink ...

5. Tankless water heating - Wikipedia

   en.wikipedia.org/wiki/Tankless_water_heating

   With a central water heater of any type, any cold water standing in the pipes between the heater and the point-of-use is dumped down the drain as hot water travels from the heater. This water wastage can be avoided if a recirculator pump is installed, but at the cost of the energy to run the pump, plus the energy to reheat the water ...

6. Condensing boiler - Wikipedia

   en.wikipedia.org/wiki/Condensing_boiler

   Condensing boilers are water heaters typically used for heating systems that are fueled by gas or oil. When operated in the correct circumstances, a heating system can achieve high efficiency (greater than 90% on the higher heating value) by condensing water vapour found in the exhaust gases in a heat exchanger to preheat the circulating water.

7. Questions to ask yourself before you DIY - AOL

   www.aol.com/questions-ask-yourself-diy-170000236...

   Water line replacement is also better left to a pro, as a tiny leak could result in mold. This could result in collapsing structures and floors. This could result in collapsing structures and floors.