I understand what they do. But why should I bother For starters, tankless water heaters can save you hundreds of dollars a year in energy costs. According to the U. S. Department of Energy, you can drastically reduce your energy consumption when you upgrade to a tankless water heater If you use a small or moderate amount of hot water every day less than 4. If you use a large amount of hot water on a daily basis 8. In addition to reducing your energy bill, youll also be doing your part to help the environment. Tankless water heaters are much more eco friendly than traditional water heaters since theyre only used on an as needed basis. Remember, you only heat the water directly streaming from your tap when you use a tankless water heater. This means you arent wasting water or energy through big tanks sloshing with unwanted water. All in all, tankless water heaters are an excellent investment for the future. Every family needs hot water, but tankless water heaters will ensure that you dont rack up huge bills in pursuit of it. Also check out 7 Reasons Why you should move to a Tankless water heater. How to choose the Best Tankless Water Heater All right I finally convinced you Before you swipe your credit card, however, you should make sure youre buying the right type of tankless water heater for your needs. Here are just a few things to consider The best electric tankless water heater is as small as a book. Others, including gas and propane systems, might require more room for burners, valves, vents and other things of that nature. If its important to you that your tankless water system can fit under your sink, be sure to take some measurements before you go shopping. Prices vary so drastically that its pointless to give exact numbers. Generally speaking, the more basic systems start at 5. Youll also need to factor in things like delivery, installation and maintenance, so dont forget these numbers when youre working up a budget, either. How many gallons do you need your system to pump per minute Whats your desired temperature rise and flow rate You might also want to look up the units cost of fuel per BTU British Thermal Unit. All of these figures will help you determine your homes hot water needs and the necessary power requirements for your tankless heating system. Advantages Disadvantages. Like anything else, tankless water heaters have their drawbacks. Youll need to be well informed about their pros and cons in order to make a smart purchase decision. Advantage Tankless heaters can save you more than 1. Disadvantage They cost more as an initial investment. On the plus side, theyll recoup their price in just a few short years, and they also have a longer life expectancy. Conventional heating tanks typically last 5 1. Advantage They heat water directly at the tap, eliminating the need to wait around for your hot water tank to re fill. Disadvantage A single tankless heater might not be enough to provide hot water for your entire home, especially if your family requires whats known as simultaneous usage. For example, if you want to run the washing machine at the same time as the upstairs shower, you might need to install separate heating units at both sinks to get simultaneous hot water in both rooms. Advantage Electric heating units are eco friendly thanks to their as needed energy usage. Disadvantage Gas powered heating units can sometimes offset energy savings through their use of gas burners. If your primary reason for buying a tankless water heater is to live a greener life, you might want to purchase an electric heating unit instead. Types of Tankless Water Heaters. Natural Gas. In a tankless, gas powered water heater, cold water is drawn into the unit and warmed through a series of burners and heat exchangers. Because they can handle high volumes of water, theyre great for large homes or those with high water demands, and theyre also the most popular model for families who live in very cold climates. However, theyre more expensive in both short and long term costs than other tankless models. Provide the highest flow rates. Require ventilation, which can mean costly or complicated installation. Cost 5. 00Propane. Propane water heaters work very similarly to gas water heaters. In fact, among some manufacturers, theyre marketed and sold the same way. The difference is mostly in the way that propane and methane natural gas burn, which can in turn affect things like cost, energy efficiency and the longevity of the unit. Electric. Work the same as natural gas water heaters. May need annual inspections. Electric units are the most affordable option in tankless water heaters. They cost less upfront and dont require as much maintenance as other models. That said, they cant supply as much power as gas or propane units, so theyre best for small homes or those with low or intermittent water needs. Small, easy to install units. Can be fitted under sinks and inside closets. Some Frequently Asked Questions. What is a tankless water heater Tankless water heaters warm up your water on an as needed basis. Instead of hot water collecting in a water tank in your basement, tankless water heaters directly warm cold water as it travels through your tap. Adobe Cs2 Program Files X86 Mean. Are they dangerous When properly used and maintained, tankless water heaters are no more dangerous than your existing water heating system. The gas and propane systems do use a live flame, but its no different than a gas stove using a pilot light. Where can they be installed This depends on the type of tankless water heater you buy. Many electric units are small enough that they can be stored right under the sink, but gas or propane units need more room because they have burners and vents to consider. How much do they cost Prices vary between hundreds and thousands. Federal Tax Credits are available for certain units and can reduce the price by as much as 3. Why do they cost more than traditional water heating systems They only cost more initially. When you look at the five or ten year price of owning a tankless water system versus a traditional water heating system, the tankless version is much cheaper.