Minimum of 18" by Code.
18 inches above the garage slab
by California code gas fired water heaters must be 18inches off the garage floor & must have earthquake straps
Tankless water heaters do not have a tank with a reserve of hot water that must be kept at temperature until there is a demand for it. Depending on the age of the water heater, this could result in a lot of wasted energy. Tankless water heaters heat the water as it is needed. These units are more expensive, but in the long run result in savings, both of money and energy.
The water line has NOTHING to do with the vent connections.. The FLOOD LEVEL rim is what you must consider
Gas heaters that are not part of a central heating system are considered space heaters and can be dangerous as you have heard. In addition, gas heaters that are improperly used or functioning add the risk of carbon monoxide poisoning, especially if they are not vented to the outdoors. Safety precautions are a must with these heaters.
Immersion heaters allow you to heat liquids directly. This is more efficient than heating the object that holds the liquid, because the heat must heat the container, then the container must heat the liquid. Other heaters cannot do this because they cannot be submerged into liquids.
Tankless water heaters are green because they only heat the water as it is needed. In a conventional water heater with a tank, there are 20 - 60 gallons of hot water that must be kept hot 24 hours a day, 7 days a week. Some of the heat in that water is constantly getting out of the tank, no matter how well it is insulated. That means that every so often, the heater must run to bring the water temperature back up. All that heat that leaks out is wasted. A tankless water heater doesn't use any energy when there is no water flowing.
The top of the crossbar is ten feet above the playing field.
There are several different options when you need to replace your home’s water heater. Each type of heater has different benefits that may or may not fit your needs. Think about the priorities you have in mind for your water heater, then choose the one that matches those priorities the most closely. Electric Water Heaters Electric water heaters include large tanks filled with water that is constantly heated by an electrical heating element. They tend to consume less energy than gas water heaters because the electrical element is not continuously burning the way that a gas heater’s pilot light is. The only trouble with electric water heaters is that they can take a long time to heat the water when they are completely drained. They are not ideal for large families who may need a lot of hot water at the same time. Natural Gas Water Heaters Gas powered hot water heaters are configured the same way electric heaters are. They have large tanks of water that is kept hot and ready for use. Gas water heaters tend to consume more energy than other options, however, because they must be kept lit at all times to maintain effectiveness. The water heats more quickly with a gas water heater, though. Sometimes a gas water heater can require more maintenance than an electric option because the pilot light has a tendency to go out. The homeowner must light the pilot in order to make sure that there is hot water available for the home. Tankless Water Heaters Used as a standard form of water heater throughout Europe, tankless water heaters don’t require the use of a tank of water at all. They are installed in the same area that a hot water tank would be installed, but they contain a quick heating element that heats the water on demand. There is no danger of ever running out of hot water because the water is heated when the hot water tap is turned on anywhere in the house. Tankless water heaters are the most energy efficient option because they don’t keep a large quantity of water heated constantly the way the other types of water heaters do.
TCC standing for Tarrant County College, requires a high standard for entry. These requirements are: A GPA of 3.5 or above, an SAT score of 1100 or above and you must be a top 10% high school graduate.
The high average in June is above freezing, but one must wait until July before the low average goes above freezing.
The Federal Motor Carrier Safety Administration regulations §393.77: Heaters contains all kinds of restrictions about heaters, but not one of them says that there must BE a heater.