240 208 VOLT ELECTRIC TANKLESS HOT WATER HEATER NEW US $259.95

ADK-12 - American Heat Electric 12KW Tankless Water Heater US $208.50

ADK-9 - American Heat Electric 9KW Tankless Water Heater US $208.50

Ecosmart ECO 27 kW at 240 Volt Electric Tankless Hot Water Heater US $544.50

RA18 POU seisco electric tankless hot water heater RA-18 On Demand Electronic US $300.00

Seisco RA-28 Electric Tankless Water Heater US $764.10

Seisco RA-32 Electric Tankless Water Heater US $787.50

Seisco RA-18 Electric Tankless Water Heater US $697.50

Seisco RA-14 Electric Tankless Water Heater US $539.10

Electric Tankless Hot Water Heater - Instant On Demand - 7 GPM Whole House 27kW US $544.50

Eemax Tankless Electric Water Heater Commercial House EX320T2T US $499.00

New Seisco Electric Tankless Hot Water Heater RA 28 model US $819.00

Electric Tankless Instant On-demand Hot Water Heater 18 US $449.00

Electric Tankless Instant On-demand Hot Water Heater 27 US $549.00

Electric Tankless Instant On-demand Hot Water Heater 24 US $539.00

Electric Tankless Hot Water Heater - Whole House - EcoSmart 27 - BRAND NEW! US $499.99

SANTON 9 KW Electric Tankless Hot Water Heater US $202.00

AQUAH 18 KW ELECTRIC TANKLESS WATER HEATER US $324.95

18 KW Electric tankless hot water heater US $333.99

ELECTRIC tankless water heater US $425.00

Ecosmart ECO 27 27 KW at 240-Volt Electric Tankless Water Heater Patented S US $449.99

GE Hybrid heatpump GeoSpring water heater electric GEH50DNSRSA beats tankless US $1,499.95

Rheem RTE-13 Electric Tankless Water Heater - 4 GPM US $299.00

Bosch RP27PT Electric Tankless Water Heater US $500.00

Stiebel Eltron Tempra 20 Plus Electric Tankless Whole House Water Heater, 240 V US $539.95

Bosch RP27PT Powerstream Pro Electric Tankless Water Heater 26.85 KW 240 V US $675.00

Ecosmart ECO 18 kW at 240 Volt Electric Tankless Hot Water Heater US $434.50

Ecosmart ECO 11 kW at 240 Volt Electric Tankless Hot Water Heater US $269.50

Tankless Electric Water Heater 8kW - Ecosmart ECO8 US $269.50

Titan TANKLESS Water HEATERS Electric N120 BRAND NEW US $205.00

Seisco RA-28 Electric Tankless Water Heater 28 kw US $880.00

Seisco RA-22 Electric Tankless Water Heater 22kw US $870.00

Seisco RA-18 Electric Tankless Water Heater 18kw US $870.00

Titan TANKLESS Water HEATER Electric N160 NEW US $315.00

Seisco RA-32 Electric Tankless Water Heater 32kw US $890.00

Bosch Powerstar Electric Tankless Water Heater US $229.26

USA ELECTRIC TANKLESS WATER HEATER 15 KW US $325.00

BOSCH POWERSTAR AE115 AE 115 ELECTRIC TANKLESS WATER HEATER *NEW* US $399.00

Rheem 5 GPM Electric Tankless Water Heater RTE 27 US $816.52

3 GPM ELECTRIC WHOLE HOUSE TANKLESS HOT WATER HEATER US $429.99

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Another thing about storage water heater is that, suppose you take a 15-minute shower, with a low flow showerhead, you are using 45 gallons of water. If even half of that amount is hot water, you used 22-1/2 gallons from your 28-gallon tank. Then after the first couple of gallons, your tank becomes cooler due to the replacement of the water from the tank with cold water. Your water heater now needs to heat all of the water in the tank. This is the difference with a tank less water heaters.

However, the initial investment on a tankless electric water heater is higher compared to the storage water heater. Therefore, you have to be very choosy about the brand before buying one. This is because not many manufacturers have addressed fully the features that may be ideal for tankless water heating system, relatively a new concept.

Rinnai is one brand we hear many good things about the tankless water heating system. Despite this, you want to make sure the installer does the maintenance work regularly. For instance, many plumbers install the tankless electric water heaters, but seldom turn up to repair them.

The critics of tankless electric water heaters say that they will save you money only in the short term. In addition, that they are not as good for the environment, because, they tend to fuel electrical demand, and put pressure on optimizing electrical utilities to manage generation load.

It is also said that the tankless electric waters heater draws a huge amount of current while it’s in use and on this count the natural gas –fired tankless water heaters have edge, as gas is relatively cheaper, fast in heating the water. Experts say, if you are replacing an existing tankless water eater, make sure that the power and voltage match the existing one you are replacing. Further, if you are working on your primary residence, always choose a gas tankless water heater.