Monday, June 2, 2008

Electric Tankless Water Heaters

When considering a tankless water heater for your home, there are two specific choices: electric or gas. What can an electric tankless heater offer?

Electric tankless water heaters are generally cheaper than their gas counterparts. Whole house electric heaters can start as low as $500 and move up to the $1000 dollar range. This compares to gas heaters which generally start at $1,000 minimum and go up from there. So which is better for you?

The answer to that question really depends on several factors. Your hot water needs really are what determine what will work out best. While manufacturers of electrical hot water heaters claim their performance is fairly close to gas heaters, gas manufacturers have valid arguments for going down that path. A qualified dealer can run cost comparisons for you to determine if gas or electricity will work out best.

There are several advantages of an electric tankless water heater include the previously mentioned lower initial price tag. Saving $500 or more over a gas tankless heater is what most consumers consider first. Another advantage is the lower initial installation cost. Because electrical tankless water heaters are about one-third the size of a gas heater, there is often more flexibility on where it can be installed.

There are not any venting issues with an electric heater, thus they can be placed under sinks, in closets, or in crawl spaces where a full sized water heater could never be used. Of course they can also be placed wherever your old water heater was.

If you are considering a whole house electrical water heater, you may have to have an electrical upgrade wherever the heater is installed. This is because these are very high power electrical appliances, like your dryer. Thus a 200 AMP, 208 to 240 volt electrical service outlet is needed. If you live in a warm climate like Florida, you may be able to get away with a lower demand heater, and use a 100 or 125 AMP electrical service.

What will your monthly cost be with an electric water heater? While you will save over a traditional water heater, you probably won’t save as much as having a gas tankless water heater. Then again, natural gas and propane rates continue to rise, bringing the energy costs of electric and gas tankless heaters close together.

What about water use? Can a tankless electric keep up with its gas counterpart? In most cases, yes. Whole house heaters can produce between 3-8 gallons per minute of hot water. Why such a wide variance? It depends on the incoming water temperature. For example, the incoming water temperature in Arizona is much different than the incoming temperature in Minnesota during January. In cold climates it is going to be closer to three gallons a minute.

How about gas tankless water heaters? Next time we will consider the advantages of gas over electric tankless water heaters.


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Ralf Thompson said...

Tankless water heaters are the great and efficient hvac technology.

Micheal Jordon said...

I think Nortiz tankless water heaters are great and efficient and really great above all tankless water heaters.

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