Electric Tankless
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![]() Tankless Hot Water Heater Electric 110V 2 GPM Marey Power Pack FREE FEDEX $164.99 Time Remaining: 29d 13h 8m Buy It Now for only: $164.99 |
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![]() Instant On Demand Electric Tankless Hot Water Heater 5 GPM Maxwell 21kW $348.00 Time Remaining: 12h 32m |
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![]() Instant On Demand Electric Tankless Hot Water Heater 25 GPM Maxwell 10kW $224.00 Time Remaining: 12h 32m |
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![]() Instant On Demand Electric Tankless Hot Water Heater 4 GPM Maxwell 18kW $332.00 Time Remaining: 12h 32m |
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![]() Whole House Electric Tankless Hot Water Heater Microtherm RA28 Electronic $350.00 Time Remaining: 10d 10h 33m Buy It Now for only: $350.00 |
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![]() Electric Tankless Instant On Demand Hot Water Heater 3 GPM Whole House Marey NEW $169.00 Time Remaining: 28d 17h 42m Buy It Now for only: $169.00 |
![]() Eemax EX320T2T Tankless Electric Water Heater Commercial House 480 277V 32000W $216.99 Time Remaining: 14h 28m |
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![]() Tankless Instant Electric Hot Water Heater Shower $129.00 Time Remaining: 3d 14h 30m Buy It Now for only: $129.00 |
![]() Tankless Hot Water Heater Electric On Demand 15 Bath 25 GPM 10kW NEW $224.00 Time Remaining: 16h 22m |
![]() Rheem EcoSense On Demand RETE 27 240 Volts 27 kw Tankless Electric Water Heater $449.00 Time Remaining: 19d 20h 53m Buy It Now for only: $449.00 |
![]() Tankless Hot Water Heater Electric On Demand Whole House 5 GPM 21kW NEW $348.00 Time Remaining: 16h 22m |
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![]() Tankless Hot Water Heater No Electricity Needed Propane Vending Concession $118.99 Time Remaining: 16h 22m |
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![]() Tankless Hot Water Heater Electric On Demand Whole House 4 GPM 18kW NEW $332.00 Time Remaining: 16h 22m |
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![]() Rheem EcoSense On Demand RETE 18 240 Volts 18 kw Tankless Electric Water Heater $409.00 Time Remaining: 27d 1h 1m Buy It Now for only: $409.00 |
![]() Tankless Hot Water Heater Electric On Demand 2 Bath 27 GPM 12kW NEW $254.00 Time Remaining: 16h 22m |
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![]() Rheem EcoSense On Demand 18 kW 240 Volt Tankless Electric Water Heater RETE18 $200.00 (18 Bids) Time Remaining: 18h 46m |
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![]() Rheem Electric Tankless Water Heater RTE 13 $185.00 Time Remaining: 26d 13h 12m Buy It Now for only: $185.00 |
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![]() Seisco RA 22 Electric Tankless Water Heater $715.50 Time Remaining: 13d 8h 47m Buy It Now for only: $715.50 |
![]() Fully Functional Tankless Instant Electric Water Heater Used $75.00 (1 Bid) Time Remaining: 19h 42m |
![]() M 14 American Heat Electric 14 KW Tankless Water Heater ADK 14 $242.50 Time Remaining: 20d 12h 50m Buy It Now for only: $242.50 |
![]() Electric Tankless Water Heater Ks 94 Great extra long hot showers 25GPM $149.99 Time Remaining: 3d 9h 13m Buy It Now for only: $149.99 |
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![]() EcoSmart NEW 27 kw Electric Tankless Hot Water Heater $495.00 Time Remaining: 23d 20h 32m Buy It Now for only: $495.00 |
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![]() Bosch GL25 Ariston 2 1 2 G Point of Use Indoor Electric Mini Tank Water Heater $57.09 (9 Bids) Time Remaining: 1d 23h 22m |
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![]() Bosch Powerstar AE125 Electric Tankless Water Heater $150.00 (1 Bid) Time Remaining: 2d 9h 57m |
![]() Whirlpool Electric Water Heater 80 Gallon New $650.00 Time Remaining: 8d 14h 41m Buy It Now for only: $650.00 |
![]() Maxwell Electric Tankless Hot Water Heater 18kW FREE Ball Valve H2O Lines $332.00 Time Remaining: 15d 10h 37m Buy It Now for only: $332.00 |
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![]() SUPREME ELECTRIC TANKLESS WATER HEATER MADE USA 12 KW $245.00 Time Remaining: 16d 19h 39m Buy It Now for only: $245.00 |
![]() Pink Electric Hot Water Bottle cushion convenient cozy Electric Warming $8.99 Time Remaining: 28d 3h 28m Buy It Now for only: $8.99 |
![]() Eemax Thermostatic Electric Tankless EX100T $149.99 Time Remaining: 2d 15h 46m |
![]() ECOSMART ECO 11 SMALL ELECTRIC TANKLESS WATER HEATER 208V 129 x 99 x 65 $245.00 Time Remaining: 10d 12h 31m Buy It Now for only: $245.00 |
![]() CORAL Tankless Hot Water Heater Electric Shower Head 220 Volts Showerhead $29.00 (2 Bids) Time Remaining: 2d 18h 5m |
![]() Microtherm RA 28 Electric Tankless Hot Water Heater 28kw On Demand Micro Boiler $350.00 Time Remaining: 10d 10h 33m Buy It Now for only: $350.00 |
![]() Bosch TANKLESS Propane WATER HEATER 1600H LP No Electricity Needed BRAND NEW $599.00 Time Remaining: 27d 20h 25m Buy It Now for only: $599.00 |
![]() Coral MAX Tankless Water Heater Electric Shower Head 220V FREE Arm Tube Support $49.00 Time Remaining: 2d 18h 10m |
![]() New American Hometec Compact Electric Tankless Heater AHQ TC10 208 240V $149.00 Time Remaining: 8d 13h 26m Buy It Now for only: $149.00 |
![]() Coral MAX Tankless Water Heater Electric Shower Head 110V FREE Arm Tube Support $49.00 Time Remaining: 2d 18h 10m |
![]() GS Aviditi XFJ180FDCHAVI Tankless Electric Water Heater 18kw 6 GPM $249.99 Time Remaining: 18d 10h 37m Buy It Now for only: $249.99 |
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Instant or Tankless Water Heaters – Things You Should Know Before You Decide!
Most of us have grown up with a standard tank type water heater. As such we are used to the way our hot water system works. Switching to a tankless water heater will have an affect on the way your hot water system works.
With a tank type heater, when you turn on a hot water faucet, the hot water, typically 140 degrees, immediately begins flowing through the pipe to get to your faucet. As the water travels through the cold pipe, it cools off until the piping material warms up. That is why your hot water doesn’t instantly go from cold to hot; it has to warm up the pipes first.
Many homes have hot water circulating systems that circulate the hot water through the pipes to obtain instant hot water at every sink. Circulating systems can save a lot of water. They are wasteful of energy though, since the water heater will fire up more often to replace the heat being lost through the piping which acts like a big radiator even if the pipes are well insulated.
There are also pumping systems that pump the hot water to the fixture from the heater only when you want to use hot water and you don’t run any water down the drain. You still save the water and time, but you don’t waste water.
Tankless Systems
Tankless water heaters are being promoted as providing endless hot water and as being energy saving over traditional water heaters. While both of these facts are true, there are other things to consider.
If you are considering replacing your tank type water heater with a tankless unit, and you have a typical house, make sure you get one large enough to do the job. Since you are heating water as you use it, you must heat it much more quickly than a tank type heater so you need to add heat much more quickly.
For a gas type heater this means you will be using a lot more gas volume/ minute than with a tank type heater. Your exhaust flue will need to be much larger and the gas line might need to be larger. For electric units you might have to have special wiring put in to handle the high amperage loads created by a large electric tankless water heater.
With a tank type water heater you can set the flow rate to anything you want from full-on to just a trickle. With a tankless water heater there is a minimum flow rate required to turn the heater on. Typically it ranges from about ½ gallons per minute to ¾ gallons per minute. So you can’t get just a trickle of hot water.
Most circulating systems don’t pump at a high enough flow rate to turn on the tankless water heaters. If they do, they will void or restrict most warranties, because they will cause frequent on-off cycles for the heater.
Changes in your water temperature from winter to summer will impact the tankless heater. The tank type heater always heats your water to the same temperature. The tankless units increase the temperature a certain number of degrees with a given flow rate.
For example, if your incoming water temperature in the summer is 60 degrees, and your heater raises the temperature 80 degrees at a flow of 1 gallon per minute, you have a hot water temperature of 140 degrees. If your incoming water drops to 50 degrees in the winter, your top temperature will drop to 130 degrees. And don’t forget, as you increase the flow rate the temperature rise will drop.
To fully heat the hot water, the cold water entering the water heater must pass all the way through the water heater. This means that it will take longer to get your hot water than with a tank type heater, and you will run more water down the drain.
The water conservation issue can be resolved with a “demand” type hot water system. Demand hot water pumps pump the hot water from the heater to the fixture without running water down the drain. The pump only runs for a short time, usually less than a minute, and thus only consumes about $2.00 per year in electricity costs for a typical family. A demand pump will get your hot water to your fixture about twice as fast as normal and you won’t waste any water. Demand pumps can be found for less than $200.00 and are very easy to install.
Tankless water heaters can save you a modest amount of energy, typically around $8.00 - $10.00 a month. Since tankless units are more expensive than tank type water heaters, and more expensive to install, that savings may not be so great. They can also provide you with endless supply of hot water. However, forget getting a trickle of hot water, be prepared to wait a little longer, and adjust to having the temperature vary with the flow rate.
About the Author
For faster hot water to your kitchen or bath visit: Hot Water Demand Systems
For more about water heaters: Water Heaters Instant hot water systems.











































































