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.
I believe you can find a tankless hot water heater at any of your local Sears or home improvement stores. I think that Menards, Home Depot, or Lowes would have what you are looking for.
One can find several tankless water heater installation companies from online. To name a few, there is 'Eemax', 'Rheem Heating', 'SoCalGas' and 'Hot Water'. More information can be found on each of their official website.
The best place to find an Electric Tankless Water Heater would be online, Phnix-e and Klopper-Therm are manufacturers fo these Water Heaters. If you need more information before buying then they are the best to contact. Should know exactly what it is you looking for then you can try companies like, Amazon, ebay, Home Depot and Lowe's for a variety of choices.
Check with supplier or manufacturer of product.
To find reviews for tankless water heaters, one could check out ConsumerReports, as well as sites that sell tankless water heaters such as Home Depot and Amazon.
Although tankless water heaters are an efficient, cost effective way to heat up water for your family's personal use, not every home has the type of plumbing necessary to use these new devices. If you live in an older home, make sure that you consult with a plumber before you make your tankless water heater purchase. You do not want to go to all the trouble deciding which unit to buy only to find out that you can only use the traditional tank models. A plumber will be able to quickly tell you if a tankless water heater is right for your home.
You can find a cheap electric water heater online by going to either of the followiing websites www.ebay.com or www.amazon.com for very low prices and wide selection
Turn off the breaker and reset the water heater. You can find instructions for this at http://www.usatankless.com
There are many books available on home repair and do it yourself installation. Check with your local librarian to see what books they have available on the subject.
Lowe's, Home Depot, and Osh are stores you can visit to find the heater. If you don't mid waiting for shipping you can also order a heater online from Amazon or eBay. Each of these stores has a website where customers who have bough heaters there can provide reviews.
Electric water heaters are big towers that hook up usually in basements and they just allow you to have warm water. You can usually find more information by doing by searching online.
If you want a good deal on tankless water heaters, you could down to your local home store. They will have a stock of them. There may be a specialist store near you as well.