Unlike traditional tank water heaters, tankless systems do not heat a large quantity of water and hold it until you need it. Instead, they heat your water on-demand, when you turn on the tap. A small heating system warms the water as it runs past it in the pipe.
Good, but expensive to operate.
Yes, the tankless water heaters do cost more than the normal water heaters because tankless water heaters are designed to supply hot water only when needed unlike normal ones.
Tankless water heaters are available at most hardware/construction retail stores or online stores. Tankless water heater are much more expensive than regular water heaters.
While tankless water heaters are significantly more efficient than traditional water heaters, it can take up to 22 years to break even on the cost, due to the initial expense of the tankless water heater itself. Unfortunately, by the time the tankless water heater starts to pay for itself, it will likely have exceeded its 20-year lifespan. http://www.consumerreports.org/cro/appliances/heating-cooling-and-air/water-heaters/tankless-water-heaters/overview/tankless-water-heaters-ov.htm
Titan tankless water heaters can be purchased online at Tank the Tank, Hot Water, Local, Amazon, eBay, Titan, Titan Water Heaters, and Tankless Water Heaters.
Tankless water heaters have been around about 30 years. I believe they may have first been used on European trains.
Tankless water heaters are produced by a wide range of manufacturers. The Rheem tankless water heater has a cost range from the mid fifteen hundreds to over two thousand dollars.
Tankless gas water heaters can be purchased at your retail stores like Home Depot, their prices range from $278.43 to $1716.00. Tankless gas water heaters can also be purchased from ebay.
form_title= Tankless Water Heaters form_header= Hot water without the tank. DO you need to remove an old water heater?*= () Yes () No When do you want the water heater installed?*= _  What is your budget for a water heater?*= _ 
Rheem tankless water heaters are special since they are both energy efficient, and space saving. These water heaters are also innovative due to their small size, since they can fit under sinks and small cabinets.
Home Depot offers tankless hot water heaters for around $1000 depending on the specifications you need. These will need to be professionally installed.
Tankless water heaters are low energy because they only run when the hot water is needed.
Propane or natural gas.
8-9ears is about average
Most tankless hot water heaters are electric. I've never heard of a propane one.
In addition to a full line of traditional tank water heaters, Rheem also offers tankless water heaters that are designed to leave less of a carbon footprint on the environment. The company's Prestige� Series Condensing Tankless Gas and Tankless Gas units are designed for homes with busy families, luxury bathrooms or vacation homes. These units provide quick start up and ample supply to run a variety of water heating applications simultaneously. Tankless electric water heaters are smaller and designed for point-of-use applications. They fit under bathroom or kitchen sinks and are perfect for small, detached buildings.
Tankless water heaters work by quickly and efficiently heating water as it is demanded. They provide sufficient hot water because the heating implement goes on while water is turned on, avoiding the energy waste of tank water heaters.
Tankless water heaters are more energy and cost efficient than your typical water heaters. Of course, each person has their own needs and it is always a good idea to weigh out the pros and cons before making any decisions for a change. What works well for some may not work well for other.
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.
Gas tankless water heaters use high-powered burners that quickly heat water as it runs through a heat exchanger. It is 22 percent more energy efficient on average than the gas-fired storage-tank models.
Bosch tankless water heaters were specifically designed for the United States. They save energy because they only heat the water you are going to use. They also save water because of their size compared to regular water heaters.
Yes, Home Depot sells Rheem tankless water heaters. However, the Rheem company website also offers them and the company may have a better price. I would also look on Amazon.
You can find in-line water heaters at any of the Home Depots in NYC, or at just about any plumbing or electrical store.
Yes, tankless water heaters provide hot water on demand. They reduce energy consumption because energy is not used to keep water hot like in a normal water tank.
A tankless hot water heater is both more environmentally friendly and economically sound than traditional storage units because it only heats water for use on demand as it is needed. These water heaters are less wasteful and generally more efficient. However, smaller units are sometimes challenged in meeting multiple demands for hot water at the same time. For a large family or home, consider purchasing a whole house tankless hot water heater system. Another option is to install multiple tankless hot water heaters to operate the dishwasher or washing machine separately.