A device that transfers heat
from one liquid to another without the two liq-uids coming into contact with each other.
A sensing element that is attached to the
back of a thermostatic control immersed in a water heater storage tank.
A valve opened by a plunger
controlled by an electrically energized coil.
Another name for a pilot burner.
T h e a m o u n t o f h e a t
needed to raise the temperature of one pound
of water by 1°F. Abbreviated Btu.
A thermostat that regulates the tem-perature of hot water in a hot water boiler.
The crust on the inner surfaces of boilers, water heaters, and pipes, formed by deposits of silica and other contaminants in the water.
A plate that slows or changes the direc-tion of the flow of air, air-gas mixtures, or flue
gases.
A water heater in which a heat exchanger increases the water’s
temperature
A device that ignites the gas at
the main burner when turned on by the ther-mostatic control. Also called a safety pilot.
The motion of water resulting from density differences caused by different temperatures throughout the water.
A g a s - fired water heater that meets the ANSI standard for
resisting the accidental combustion of vapors emitted by flammable liquids stored, used, or spilled near the water heater.
A small electric generator made of two different metals joined f rmly to-gether. It roduces a small electric current that holds the safety shutoff gas valve open.
The enclosed tank that store
heated water; it allows heated f ue gases to cover the bottom of the tank before they enter the vertical flue. Commonly called a center flue tank.
In a water heater, the control that adjusts the water temperature.
Verticales
In a solar water heater, a box that
collects heat from the sun and transfers it to wa-ter as it flows through a pipe that runs through
the box.
A water heater
that heats water when it is used, rather than
storing and heating water in a tank.
The rate at which cold water can be heated.
An opening on a hot water tank that provides access for installation
of a temperature/pressure (T/P) relief valve.
The outer shell of a water heater, made of enamel baked on steel
A heat-resistant enclosed passage in a chimney that carries away combustion prod-ucts from a heat source to the outside.
The chamber in which the fuel
gas mixes with air and is ignited. The combus-tion in the chamber heats the water in the tank to a preset temperature.
To operate a water heater with no water in the heater’s storage tank.
A device that prevents cold water from mixing with hot water; it delivers incoming cold water through the stored hot water to the bottom of the tank.
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There is a 'Make Printable' button on the top left of your puzzle that will let you sign up for a plan or purchase a single puzzle.
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It looks weird when printed.
First make sure you’ve published your puzzle. See the 'How do I print?' section above for more information.
99% of other printing issues have to do with printer settings. Instead of trying to fiddle with printer settings, which can be time-consuming and frustrating, there are a couple workarounds you can try.
You can try printing from a different browser, since different browsers have different default print settings. Alternately, you can try saving as a PDF (next to the print icon) and print that.
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We invested in building a number of premium features that free sites are unable to offer: the ability to automatically or manually add words to your puzzle, save-as-you-go puzzle editing, the ability to access your puzzles from any computer, an uncluttered and ad-free interface, the ability for friends and colleagues to solve your puzzles online, and quick responsiveness to reported issues.
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When you hit the 'Arrange' button, our algorithm will try to arrange all your words on the grid, and will move words around to try to fit the most words.
This will get all the words on the grid about 90% of the time, depending on the word list. For the other 10%, you will get an alert explaining that the words that did not fit were added to the scratchpad.
It prints on two pages.
Big puzzles won’t always print on one page — the clues and grid are the smallest we could make them while keeping them readable for everyone.
That said, different browsers print in slightly different ways, so you could try using 'print preview' using a different browser (or try the PDF button) to see if you like how that looks better.
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