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Friday, September 30, 2005

What's a Runaway Grand Jury? - Is that what sank Tom DeLay? By Daniel Engber

What's a Runaway Grand Jury? - Is that what sank Tom DeLay? By Daniel Engber: "
explainer Answers to your questions about the news.

What's a Runaway Grand Jury?
Is that what sank Tom DeLay?
By Daniel Engber
Posted Friday, Sept. 30, 2005, at 2:07 PM PT

House Majority Leader Tom DeLay is scheduled to appear in a Texas courtroom three weeks from today to face a charge of conspiracy. DeLay's allies have ridiculed the charge, calling it the handiwork of a partisan prosecutor. DeLay claims that the prosecutor first told him he wasn't a target of the investigation and then dodged responsibility for the indictment by blaming it on a 'runaway grand jury' that didn't follow his instructions. What's a runaway grand jury?

One that ignores the prosecutor's instructions. Grand juries are supposed to be independent, investigative bodies with the power to call their own witnesses, subpoena documents, and decide on the specifics of an indictment. In practice, they have very little opportunity to take initiative. The prosecutor decides which evidence will be presented, then tells the jury whom to indict on what charges. All the jury does is vote yes or no. In rare cases, a grand jury rejects the prosecutor's direction, makes its own investigation, and draws its own conclusions. Lawyers call this a 'runaway.'

These days, grand juries tend to serve as rubber stamps. In 1985, Judge Sol Wachtler famously said that grand juries are so compliant, a district attorney could get one to 'indict a ham sandwich.' (Republican lawmakers likened DeLay to a ham sandwich here and here.) The modern criminal-court system makes it very difficult for a grand jury to exercise any independent authority. Subpoenas for witnesses or documents go through the prosecutor's office, and testimony typically unfolds under her direction in the absence of a judge or defense attorneys. Critics of the system argue that even though grand juries are supposed to protect defendants from frivolous charges, they almost never do. Instead, prosecutors use grand juries to strengthen their cases—by obtaining evidence without having to parry defense objections, for example.

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Runaway grand juries were far more common before the 20th century. Feisty jurors in New York took on government prosecutors when they chose to investigate Boss Tweed in 1872. Thirty years later, a grand jury in Minneapolis hired private detectives to help indict the mayor.

There have been a few runaway juries in recent years. In 1991, a federal prosecutor lost control of a jury investigating environmental crimes at the Rocky Flats Nuclear Weapons Plant. The government worked out a plea bargain with the company that owned the plant, but jurors wanted to indict the company along with five of its employees and three officials from the Department of Energy. A member of the grand jury who happened to be an attorney led the dissent.

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Thursday, September 29, 2005

Tankless Hot Water Solutions - Van Nuys

Demand Water Systems

Demand Water Systems: "Selecting a Demand Water Heater
Select a demand water heater based on the maximum amount of hot water to meet your peak demand. Use the following assumptions on water flow for various appliances to find the size of unit that is right for your purposes:

* Faucets: 0.75 gallons (2.84 liters) to 2.5 gallons (9.46 liters) per minute.
* Low-flow shower heads: 1.2 gallons (4.54 liters) to 2 gallons (7.57 liters) per minute.
* Older standard shower heads: 2.5 gallons (9.46 liters) to 3.5 gallons (13.25 liters) per minute.
* Clothes washers and dishwashers: 1 gallon (3.79 liters) to 2 gallons (7.57 liters) per minute.

Unless you know otherwise, assume that the incoming potable water temperature is 50� F (10�C). You will want your water heated to 120�F (49�C) for most uses, or 140�F (60�C) for dishwashers without internal heaters. To determine how much of a temperature rise you need, subtract the incoming water temperature from the desired output temperature. In this example, the needed rise is 70�F (39�C).

List the number of hot water devices you expect to have open at any one time, and add up their flow rates. This is the desired flow rate for the demand water heater. Select a manufacturer that makes such a unit. Most demand water heaters are rated for a variety of inlet water temperatures. Choose the model of water heater that is closest to your needs.

As an example, assume the following conditions: One hot water faucet open with a flow rate of 0.75 gallons (2.84 liters) per minute. One person bathing using a shower head with a flow rate of 2.5 gallons (9.46 liters) per minute. Add the two flow rates together. If the inlet water temperature is 50�F (10�C), the needed flow rate through the demand water heater would need to be no greater than 3.25 gallons (12.3 liters) per minute. Faster flow rates or cooler inlet temperatures will reduce the water temperature at the most distant faucet. Using low-flow shower heads and water-conserving faucets are a good idea with demand water heaters.
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Video: Tankless Hot Water Heater

Video Tankless Hot Water Heater: "Chris Vila meets with Jack Frederick from Frederick/Gerahty to review the hot water heater. The Continuum unit from Rinnai is an instant-on unit that employs no holding tank. Water is heated on demand when the user opens the hot water tap. The unit senses the moving water and heats only what is needed and shuts down when the tap is shut off. This unit has remote sensors that can be programmed with maximum water temperatures to prevent scalding. Since the unit produces no “standing” hot water, it can be up to 70 percent more efficient than a standard hot water heater. The Continuum can produce up to 8.5 gallons of hot water per minute continuously so the homeowner never needs to worry about running out of hot water. Rinnai also uses a direct-vent system making it friendlier in today’s tightly sealed homes. "

Choosing and Installing a Tankless Water Heater

GreenHomeGuide Know-How - Bathrooms - 9 Best Practices for Choosing and Installing a Tankless Water Heater: "1. Determine your hot water needs.

In general, the hot water flow rate of a small tankless water heater can support a bathroom and a kitchen with a dishwasher. The key to selecting the proper model is knowing the flow rates of your fixtures, the coldest temperature of incoming water, and your usage patterns (how many faucets do you expect to be able to use at the same time?). Work with your plumber to choose a size that best fits your needs.

You can also install more than one heater to heat water by zone. For example, at my current remodel I’ve installed two tankless water heaters—one supports a kitchen, bathroom and half bath; the second supports two additional bathrooms.


2. Understand your dishwasher and clothes washer.

Your appliances may need hot water from your tankless heater or they may heat water internally. I bought a superefficient Asko clothes washer/dryer that heats the water itself and requires only a cold water connection. I didn’t realize this until we installed the appliance!


3. Be prepared for resistance from your contractor.

Because of concerns about time and liability, most contractors don’t want to try something new. If you are convinced that a tankless water heater is for you, insist on it and find a contractor who will work with you (preferably one who has experience installing tankless units). Provide the contractor with the manufacturer’s installation instructions (often available online); you may also want to contact the manufacturer’s technical support department for advice on size and other considerations.


4. Carefully plan the location of your water heater.

Tankless water heaters use an intense flame to heat water on demand. They require more air for combustion and vent more exhaust than conventional water heaters. This affects how and where you install them in two ways:

Venting: For direct venting (through the wall), the vent termination must be at least three feet from any operable window. If you are venting through the roof, the length of the vent is determined by the size of the heater (the BTU output) and the number of elbows, or turns, in the vent. You may not be able to vent the heater through the roof if the vent run is long—for example, if the heater is in the basement of a three-story building.

Combustion air: A tankless water heater requires a source of oxygen for combustion. For example, if you install the heater in a closet, provide a source of air, such as a six-inch intake pipe that draws air from outside. Review the specifications carefully.


5. Check your gas and water supplies.

Tankless water heaters can produce three to four times the BTUs a conventional heater produces. Your plumber must verify that your current gas line size, length and even gas meter can provide sufficient gas flow to the unit. Tankless heaters also require minimum water flows for activation; again, your plumber should verify that your supply meets the specifications.


6. Avoid long runs between the heater and the faucet.

Because tankless heaters generate hot water only when you turn on the hot water tap, it takes some time (a small delay) to heat cold water to the optimal temperature. Locating the heater far from the tap will result in wasted water and more time for hot water to reach the tap. One way to overcome this problem is to use a recirculation pump that brings water from the farthest fixture in the plumbing run back to the tankless heater.

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HousingZone.com - A Tankless Job

HousingZone.com - A Tankless Job: "Tankless Water Heaters - Advantages. As noted in the cost comparison table on page 92, tankless water heaters cost less to operate on an annual basis and have a longer life expectancy. In addition, installing a smaller tankless unit is ideal for supplementing a conventional storage tank model that provides water for the rest of the home. These small heaters are usually installed in a closet or underneath a sink.

Tankless Water Heaters - Disadvantages. With a tankless unit, those appliances using a large amount of water — for instance, the washing machine and dishwasher — need to be operated separately. However, separate tankless water heaters can be installed to meet individual hot water loads, or two or more water heaters can be connected in parallel for simultaneous demands for hot water. Some manufacturers claim that their product can match the performance of any 40-gallon (151 liter) tank heater.

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Berkeley Parents Network: Water Heaters

Berkeley Parents Network: Water Heaters: "May 2005

About 2 years ago, we had a tankless hot water heater installed (an apparently fancy, Takagi TK2), and I'm fairly disappointed--wondering if my expectations were too high.

It takes 30 seconds to get hot water in our kitchen and 60 seconds to get it to the bathroom sink, ~6 and 20 feet from the heater respectively. Also, if I've got hot water running in the kitchen and I reduce the flow but don't change the temperature, the water goes cold and I have to crank the flow back up and wait again to get the not water back. Needless to say, we're wasting lots of water waiting for it to turn hot.

I had our plumber come back to ask if this was normal, and he advised that we had sort of large pipes (which they had installed 3 years prior) so it would take a while for the hot water to flow (of course we weren't advised of this when they sold us the expensive hot water heater) but didn't have a good explanation for the other stuff, and proposed a $500 tiny water tank to keep some hot water on reserve--seems to defeat the purpose. I can't believe that this is how the product was supposed to work.

Does anyone out there have this same hot water heater and experience or (please!) does this some malfunction/ adjustment problem? It infuriates me every time I turn the water on. feeling wasteful and shnookered"