Residential Hot Water Conservation Products
Hot Water Conservation Is Harder Than Cold Water Conservation
Water conservation products for cold water conservation are prolific. There are low flow fixtures; actually these are now mandatory in most areas, low flow shower heads, water conserving appliances, low flow toilets and other flow restricting devices.
There are also things like dual-flush toilets, toilet dams, drip irrigation systems, and all sorts of other water conservation products.
A lot of these conservation devices do not really provide conservation for those individuals who are already practicing good water habits. For instance, low flow kitchen faucets only save water when someone leaves the water running based on time.
Filling the sink takes the same amount of water no mater how slow the flow is. The same is true with filling a pitcher of water. Water conserving appliances often need the user to use special cycles, which are often not used.
Most of these water conservation products do not address one of the largest wasters of water in the home… the hot water plumbing layout. Long pipe make for long delays in getting hot water. Low flow fixtures make the problem worse by slowing down the hot water.
Slow hot water loses more heat energy to the piping as it moves toward the fixture, thus the wait becomes even longer and more water gets run down the drain. So what can we do?
Water Heater Pumps
There are a class of water heater pumps known as hot water demand pumps. These are small pumps that mount under the sink furthest from your water heater. When you want hot water you demand it by pressing a start button. When you push the button it starts the pump which pumps the hot water from the water heater to your fixture at high speed.
When hot water reaches the pump, an electronic controller shuts the pump off. Now when you turn on the faucet you get instant hot water and no water was run down the drain.
The pump uses the cold water line to return the cooled down hot water that was left in the piping from the last use back to the water heater inlet. They use very little energy to operate since they run for a very short time and only when hot water is demanded by the user. Typically they consume about $2.00 per year in electricity for a family of four.
Solar Water Heaters
Demand hot water systems work fine with all types of solar systems. Some types of solar systems have longer than normal hot water distribution lines and demand hot water systems are particularly good for those types of systems. It’s not what type of fuel you use free or not, it’s how long the distribution piping and how long a wait it is before you get hot water. The longer you have to wait, the more water you are running down the drain.
Tankless Hot Water Heaters
Demand hot water pumps work great with tankless hot water heaters as long as the demand system pump has enough power to turn on the water heater. Tankless water heaters take 10 to 20 seconds longer to get hot water to the fixtures than a tank type water heater. This makes the demand system that much more valuable with tankless units.
Hot water conservation with a demand system not only provides significant water savings, but it does it in a way that adds the convenience of fast hot water. This makes it much more likely that the user will actually use it, and water conservation will actually take place.
Questions and Answers
Article Tags:
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If your home has long hot water pipes then it can take a long time to get hot water, which can be quite annoying. However, an easy, low cost solution to get you your hot water much more quickly is available. It’s a solution that speeds up your hot water, and saves you thousands of gallons of water a year.
If you are looking for home improvement products, here is a great combination. Tankless hot water is energy efficient but it wastes water. Adding a hot water demand system will make your tankless unit water efficient as well. It will make turn your plumbing system into a green hot water system.
If you are thinking of remodeling your kitchen or bath, or even just making some smaller home improvement to your kitchen or your bathroom, why not go green with your improvements?
If you are about to begin plumbing a bathroom you should consider the benefits of instant hot water with a hot water demand pump. Your family can easily save thousands of gallons of water every year and experience the convenience of instant hot water when you turn on the tap or the shower.
A hot water demand system is an easy and inexpensive way to save water and have instant hot water (when you turn on the tap). Your hot water is pumped quickly from your water heater to your sinks, and fixtures and no water gets run down the drain. It will turn your hot water plumbing green.
I was asked earlier today if a hot water demand system would work with one of these new PEX plumbing systems that use remote manifolds. Well the short answer is yes. You can basically use a hot water demand system with any hot water distribution system.
Too much pressure originates in unnecessary burden on the pipelines and fixtures of any residential and commercial plumbing systems
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Heat pump water heaters work just like heat pumps in refrigerators and window air conditioners. Its much less expensive to move heat around than it is to generate heat with electricity. The heat pump water heater uses a heat exchanger to cool the air and the recovered heat from the air is put into the water with a second heat exchanger.
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