If you have a barnett in your area get a Noritz 531 there are indoor and outdoor models and natural gas and LP models. WATER SOFTENER IS RECCOMENDED FOR ANY TANKLESS WATER HEATER IF HARD WATER IS PRESENT.
I power my house with this but i only have one bathroom.
I do not reccommend electric tankless
A tankless electric water heater is a special kind of heater that heats water that flow in a pipe by either an electric element or a gas burner. Such heater can be found in stores like Home Depot and of course Amazon.
form_title= Tankless Water Heater form_header= Repair or install a tankless water heater in your home! Do you need a tankless water heater repaired or installed?*= () Repaired () Installed What size water heater do you need?*= _  What is your budget on the water heater?*= _ 
The Bosch Powerstar AE115 Electric Water Heater is great for the price. Try http://www.heater-store.com
No, an electric appliance will not work without electricity.
You can purchase a tankless water heater from Rinnai. Rinnai is a popular site where you can purchase a tankless water heater. Also you can check energy star as well for a water heater as well.
Most tankless hot water heaters are electric. I've never heard of a propane one.
form_title= Tankless Hot Water Heater form_header= Save money with a tankless hot water heater. Do you need to remove an old water heater?*= () Yes () No Do you want an energy efficient water heater?*= () Yes () No Where will you be installing the hot water heater?*= _ 
A tankless water heater is much more efficient as it "flash" heats the water.
The average time it takes a tankless water heater to provide water for usage is immediate. The water in continuously hot for your usage. The average tankless water heater has a life expectancy for 20 years.
form_title=Tankless Water Heater Installation form_header=11693 Is this need emergency in nature?*= () No () Yes Please specify the type of tankless water heater you would like installed.*= () Whole house () Don't know () Single point Can you describe the kind of heat source you are looking to get?*= () Natural gas () Electric () Propane () Don't know () Solar
The primary advantage to having a tankless water heater is that it saves energy. The water heater will eventually save money and end up helping the environment.
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?*= _ 
Not much actually,a Mobile Home water Heater has the water connections going into the side where as a Regular Water Heater has the connections at the top. So if you have enough room above a mobile home water heater you can install a regular water heater no problem.However a lot of mobile homes do not have room above the water heater so your forced to use a Mobile Home water heater instead. Which usually costs about a hundred more than a regular one.
Bosch AquaStar 2400ES-NG (Natural Gas) Tankless Water Heater will provide a endless supply of water heater.
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
A tankless water heater provides on-demand hot water. The following guide provides simple tips when installing a tankless hot water heater. A tankless hot water heater is usually mounted on a wall, near a fresh water source. Most tankless hot water heaters are installed next to the cold water tank, or the home entry point of a municipal water supply. Using a PVC bracket, attach the hot water system to the water supply. After attaching the intake, attach the water output to the adjacent pipe. Make sure all gas and electrical connections are secured before turning on the tankless hot water system.
A tankless water heater can be advantageous because they are mostly instant and only the water needed is heated. They save energy because there is little energy wasted heating water that will not be used.
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.
The market share of bosch tankless water heater is actually a lot. They work with many different communities and have many partnerships going on around them.
There is no point, and it would be waste of electricity to use. Buying a new one of either may solve your problem. ( which you don't describe, -we are guessing in the dark ! )
Depends on the size. The average tankless water heater delivers two gallons per minute
As long as the heater is made for propane.