In America, local building codes will decide. For example, in Pinellas County, Florida, they are required with every tankless installation, but not required in some surrounding counties. Always use a certified plumber, and hold him/her accountable to meet local Codes via the Inspection process. Contact your local Building Inspection officials for info on equipment requirements and permitting.
Expansion tanks are ALWAYS a good addition to a gas or electric tankless system. All of these systems have their own controls that adjust the amount of heat applied to the water in the coils. If these malfunction, overheating may cause a steam bubble to be created inside the tankless heating unit. An expansion tank allows for the extra pressure from this expanded water to be absorbed safely.
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?*= _ 
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.
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.
The energy saving potential of tankless water heaters has led many consumers to consider replacing their storage tank water heaters with tankless models. Tankless water heaters only heat water when it is needed. The U.S. Department of Energy estimates a tankless heater can reduce water heating costs by up to 30 percent. The small size of the tankless heaters is also attractive where there is limited space. And, although there may be some maintenance costs, tankless heaters should last longer than storage tank water heaters. However, the initial cost of a tankless water heater is significantly higher than the price of a new storage water heater. Forty to fifty gallon standard storage water heaters cost from $300 to $650 at a major home store. The same store sells a 7.4 gallon per minute tankless water heater for $1,200. The cost of installing a tankless water heater is also significantly higher. Local plumbers, home stores and handymen have competitive pricing on the installation of storage water heaters. It is a quick job for an experienced installer. A tankless heater may require costly electrical work and new gas piping. The more complex installation process can be time consuming and may require specialized workers. In a 2008 article, “Consumer Reports” estimated that it would take 22 years of energy savings to recoup the higher cost of a tankless water heater. Energy rebate programs and tax credits may be available to reduce the net cost of a tankless heater or a highly efficient storage tank heater. Check programs sponsored by government agencies and utility companies before deciding on a purchase since discounts, rebates and other incentives can help a tankless water heater pay for itself in significantly less time. Rising energy costs may also make a tankless heater a more attractive financial proposition. Of course, cost savings are not the only reason to purchase a tankless water heater. Some consumers are focused on reducing their energy use. Recovering the cost of switching to a tankless heater is less important to them. If your priority is reducing your carbon footprint, a tankless water heater can help accomplish that objective.
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.
As long as the heater is made for propane.
The most talked-about type of water heater is the tankless or instant water heater. The tankless heater does not have a reservoir of water to keep heated constantly. It heats the water as it is needed. If you’re like most folks, You want hot water that is fast and plentiful. You want a heater that heats quickly without costing a fortune. You expect your heater to be robust enough to take a shower while the dishwasher is running. For these reason, a tankless water heater falls short. The up-front cost is the first consideration. A 40-gallon tank heater only costs about $800 installed. A comparable tankless water heater can run $3500 or more after installation, depending on whether your new heater fits your old fittings. Another consideration is the level of use. Unless you buy a very hearty tankless heater, it will not be able to multi-task very vigorously. Tankless heaters also have a temperature swing of up to ten degrees--five above and five below the thermostat--and the water can run hot and cold when turned off and on. Despite their nickname, instant water heaters are not. When you turn the tap, a sensor turns on a fan, then a burner, and finally the pipes get hot and the water is heated. That means a twenty second wait for the heated water. Tankless heaters tend to get lime deposits which require regular cleaning. Their pilot light is always lit, so the expense of running a tankless heater is not much less than a tank heater. The tankless heater must heat the plumbing the entire way from the heater to the faucet. After the water is turned off, the plumbing cools. This is the major loss of energy in the system. When the tankless heater is turned on again, it must reheat the pipes anew. Tankless heaters have had reliability issues in the past, when the product was brand new. These bugs have been ironed out but the companies making tankless heaters have had quality issues previously and could again. There are many companies making claims regarding the superiority of tankless heaters. When comparing, be sure to use similar models, not a high end heater versus a lesser model. Check into some consumer report web sites or forums with real reviews from real consumers to help you make you decision.
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.
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.
Bosch AquaStar 2400ES-NG (Natural Gas) Tankless Water Heater will provide a endless supply of water heater.
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?*= _ 
The easiest and most obvious way to get a Takagi tankless water heater is the Takagi website, on which they offer a wide variety of their products directly without a seller in between.
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 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.
I am seeing there are quite a few different models of the Bosch Tankless Water Heater. But from what I see I would say that the average price is about $300 - $500 so good luck with that.
Tankless gas water heater have a wide range or prices depending on the brand, length and the amount of gallons. The prices and go as low as $200 to nearly $2000.
Home Depot carries the GE Tankless Water Heater, and I was told with certainty that these are made for GE by Rheem.Additional notes:Looking for return on investment / payback period for tankless water heater over regular heater with tank? See this link* that suggests a standard home will save $375/year for a tankless water heater, so that ROI is 2 years for purchase + installation.Shopping Now? As of 2010-12-30, I am looking at the GE Indoor 7.5 gpm Tankless Gas Water Heater Model # GN75DNSRSA, retail $1449 and for the next couple of weeks is $584.10 (no cost for 3-5 bus. days shipping)This compares to $864.89 (shipping already included) for the Rinnai R75LSi Natural Gas Indoor Tankless Water Heater, 7.5 GPM on Amazon.com.
Only if allowed by the terms of the easement.
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.
Yes a bosch tankless water heater can save on your utilities bill. Bosch claims that because they use natural gas in their heaters, you can save up to half on your bills.
When you purchase a tankless water heater it will have instructions on how to install the item. Tankless water heaters normally run anywhere from $120 to $2,000. The replacement cost is between there. However, most have warranties.