My water heater is not for sale. If it's a boiler you want, you can get it at Menards, Lowes, or Home Depot, or any other stor that sells stuff for carpenters.
You can buy water heaters from any home hardware store.
Electric water heaters suitable for apartments can be purchased at most major home improvement stores. Home Depot, as well as Lowes, carry electric water heaters at an affordable price.
You can find tankless water heaters at you local home improvement store like Lowe's or Home Depot. You can also see them online at http://www.lowes.com/pl_Water+Heaters_4294856716_4294937087_
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.
I do believe that Maytag does not make water heaters. You should buy from somewhere else. Maybe you should look into buying from Sears or just going there to ask them some questions about water heaters.
Power vented water heaters are usually factory installed kits.
American Water Heaters.
Electric water heaters have not carbon monoxide.
American Water Heaters
GE hot water heaters are made by Rheem.
Rheem provide a series of high efficiency gas water heaters. Several different companies also provide tank-less water heaters, which are very efficient, as well as solar water heaters.
"Rheem does manufacture both gas and electric water heaters. Rheem currently offers 18 different varieties of gas water heaters and 9 different varieties of electric water heaters. Both types of Rheem water heaters are known for their rigorous standards, reliability, and efficiency."