Point Use Tankless
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 Stiebel Eltron Mini 3 Point of Use Compact Electric Tankless Water Heater $149.00 Time Remaining: 3d 22h 53m Buy It Now for only: $149.00 |
 Bosch RP2P Point of Use Tankless Electric Water Heater $80.00 Time Remaining: 4h 6m Buy It Now for only: $190.00 |
 Ariston Point of Use Electric Mini Tank Water Heater GL4S NEW $186.98 Time Remaining: 10d 54m Buy It Now for only: $186.98 |
 ECOSMART 60 POU Point Of Use Electric Tankless Water Heater New 2012 Model $165.00 Time Remaining: 28d 4h 21m Buy It Now for only: $165.00 |
 BOSCH POWERSTREAM PRO ELECTRIC TANKLESS WATER HEATER POINT OF USE 120V $199.99 Time Remaining: 13d 8h 44m Buy It Now for only: $199.99 |
 Point of Use Tankless Instant Electric Hot Water Heater $189.00 Time Remaining: 28d 9h 29m Buy It Now for only: $189.00 |
 Eemax SP3512 Tankless Point Use Electric Water Heater $164.00 Time Remaining: 1d 20h 52m Buy It Now for only: $164.00 |
 Bosch Ariston GL25 Electric Point of use Hot Water Heater 671014 110V $182.99 Time Remaining: 1d 22h 54m Buy It Now for only: $182.99 |
 Eemax SP3512 Tankless Point Use Electric Water Heater $89.00 Time Remaining: 7d 9h 6m Buy It Now for only: $89.00 |
 InSinkErator SST FLTR Point Of Use Water Heater $229.95 Time Remaining: 24d 58m Buy It Now for only: $229.95 |
 Bosch GL25 Ariston 2 1 2 G Point of Use Indoor Electric Mini Tank Water Heater $60.00 (10 Bids) Time Remaining: 9h 58m |
 ECOSMART 35 POU Point Of Use Electric Tankless Water Heater New 2012 Model $165.00 Time Remaining: 28d 4h 27m Buy It Now for only: $165.00 |
 Ariston Point of Use Electric Mini Tank Water Heater GL2 5S NEW $176.98 Time Remaining: 26d 6h 54m Buy It Now for only: $176.98 |
 Point Use Tankless Instant Electric Hot Water Heater 5 $189.00 Time Remaining: 10d 19h 43m Buy It Now for only: $189.00 |
 PowerStar Point of Use Electric Tankless Water Heater AE34 NEW $196.98 Time Remaining: 21d 15h 6m Buy It Now for only: $196.98 |
 Bosch PowerStar AE 95 Under Sink Tankless Point of Use Water Heater $184.89 Time Remaining: 2d 2h 37m Buy It Now for only: $184.89 |
 Ariston GL4 Point of Use Point of Use Electric Water Heater 4 Gallon 617014 110V $199.99 Time Remaining: 1d 5h 3m Buy It Now for only: $199.99 |
 NEW BOSCH GL40 4 GALLON POINT OF USE WATER HEATER SALE $169.95 Time Remaining: 17d 6h 58m Buy It Now for only: $169.95 |
 Bosch RP1P Point of Use Tankless Wtr Heater Electric $220.39 Time Remaining: 25d 47m Buy It Now for only: $220.39 |
 PowerStar Point of Use Electric Tankless Water Heater AE12 NEW $219.99 Time Remaining: 29d 15h 7m Buy It Now for only: $219.99 |
 PowerStar Point of Use Electric Tankless Water Heater AE34 NEW $125.00 Time Remaining: 2d 6h 50m Buy It Now for only: $165.00 |
 Bosch RP7P Point of Use Tankless Wtr Heater Electric $220.39 Time Remaining: 24d 2h 40m Buy It Now for only: $220.39 |
 Bosch RP3P Point of Use Tankless Wtr Heater Electric $220.39 Time Remaining: 24d 2h 40m Buy It Now for only: $220.39 |
 Bosch RP1P Electric 240V Point of Use Water Heater $174.99 Time Remaining: 21d 6h 24m Buy It Now for only: $174.99 |
 Bosch Point of Use Electric Mini Water Heater Tank $189.95 Time Remaining: 25d 23h 15m Buy It Now for only: $189.95 |
 Bosch RP9P Point of Use Tankless Wtr Heater Electric $220.39 Time Remaining: 24d 3h 7m Buy It Now for only: $220.39 |
 Ariston Point of Use Electric Mini Tank Water Heater GL6 plus NEW $219.99 Time Remaining: 19d 10h 53m Buy It Now for only: $219.99 |
 Bosch Powerstar Point Of Use Electric Water Heater $204.99 Time Remaining: 26d 23h 36m Buy It Now for only: $204.99 |
 Ecosmart Point Of Use Electric Tankless Water Heater POU 55 $194.99 Time Remaining: 21d 39m Buy It Now for only: $194.99 |
 Stiebel Eltron DHC 3 1 120 volt 110v Point of Use Tankless Water Heater $110.00 Time Remaining: 3d 4h 50m Buy It Now for only: $129.97 |
 Ariston GL6 Plus 7 Gallon Point of Use Electric Water Heater 671034 $247.99 Time Remaining: 14d 21h 18m Buy It Now for only: $247.99 |
 BOSCH POINT OF USE ELECTRIC TANKLESS WATER HEATER 240 v $219.99 Time Remaining: 12d 7h 18m Buy It Now for only: $219.99 |
 Bosch RP2P Point of Use Tankless Wtr Heater Electric $316.60 Time Remaining: 24d 2h 27m Buy It Now for only: $316.60 |
 Bosch Ariston GL25 Point of Use 25 Gallon Mini Tank Under Counter Water Heater $172.95 Time Remaining: 22h 19m Buy It Now for only: $172.95 |
 ECOSMART POU ECO 35 POINT OF USE COMPACT SIZE ELECTRIC TANKLESS WATER HEATER $172.99 Time Remaining: 8d 23h 7m Buy It Now for only: $172.99 |
 Stiebel Eltron DHC 10 2 Point of Use Tankless Electric $169.00 Time Remaining: 17d 20h 43m Buy It Now for only: $169.00 |
 PowerStar 20 GPM Point of Use Electric Tankless Water Heater $192.36 Time Remaining: 1d 45m Buy It Now for only: $192.36 |
 PowerStar Point of Use Electric Tankless Water Heater AE72 NEW $196.98 Time Remaining: 9d 23h 16m Buy It Now for only: $196.98 |
 PowerStar Point of Use Electric Tankless Water Heater AE95 NEW $196.98 Time Remaining: 9d 23h 16m Buy It Now for only: $196.98 |
 NEW BOSCH ARISTON GL4 GALLON ELECTRIC POINT OF USE ELECTRIC WATER HEATER $149.99 Time Remaining: 3d 9h 29m |
 Bosch RP3P Electric 120V Point of Use Water Heater $178.99 Time Remaining: 4d 23h 57m Buy It Now for only: $178.99 |
 ECOSMART POU 6 POINT OF USE COMPACT SIZE ELECTRIC TANKLESS WATER HEATER 208 240V $172.99 Time Remaining: 8d 23h 7m Buy It Now for only: $172.99 |
 4 Gallon Point Of Use Water Heater $259.99 Time Remaining: 22d 23h 33m Buy It Now for only: $259.99 |
 Stiebel Eltron DHC 6 2 Point of Use Tankless Heater $169.00 Time Remaining: 19d 3h 4m Buy It Now for only: $169.00 |
 Bosch Ariston GL4 Point of Use 4 Gallon Water Heater $169.89 Time Remaining: 9d 4h 58m Buy It Now for only: $169.89 |
 25 Gallon Point Of Use Water Heater $219.99 Time Remaining: 22d 23h 36m Buy It Now for only: $219.99 |
 Ariston 6 Gallon Point Of Use Water Heater GL6+ $259.99 Time Remaining: 22d 23h 52m Buy It Now for only: $259.99 |
 Stiebel Eltron DHC 8 2 Point of Use Tankless Heater $169.00 Time Remaining: 17d 20h 49m Buy It Now for only: $169.00 |
 Rheem Point Of Use Water Heater 4GPM MAX RTE 13 $140.00 Time Remaining: 4d 9h 26m Buy It Now for only: $155.00 |
 Stiebel Eltron DHC E 8 Point of Use Tankless Heater $299.00 Time Remaining: 17d 20h 52m Buy It Now for only: $299.00 |
 Stiebel Eltron DHC E 10 Point of Use Tankless Heater $299.00 Time Remaining: 19d 3h 6m Buy It Now for only: $299.00 |
 Stiebel Eltron DHC 3 2 Point of Use Tankless Heater $169.00 Time Remaining: 17d 20h 46m Buy It Now for only: $169.00 |
 Stiebel Eltron DHC 5 2 Point of Use Tankless Heater $169.00 Time Remaining: 17d 20h 48m Buy It Now for only: $169.00 |
 Eemax SP3512 Tankless Point Use Electric Water Heater $259.93 Time Remaining: 12d 22h 58m Buy It Now for only: $259.93 |
 Stiebel Eltron DHC 4 3 Point of Use Tankless Heater $169.00 Time Remaining: 17d 20h 47m Buy It Now for only: $169.00 |
 Stiebel Eltron DHC 4 2 Point of Use Tankless Heater $169.00 Time Remaining: 17d 20h 46m Buy It Now for only: $169.00 |
 Stiebel Eltron DHC 3 1 Point of Use Tankless Heater $169.00 Time Remaining: 17d 20h 45m Buy It Now for only: $169.00 |
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Clover D7A Hot and Cold Point of Use Water Dispenser With Hygienic Stainless Steel Water Tanks
Sale Price: $210.00  |
DescriptionImprove your health and save some money with the Clover D7A point of use water dispenser! This hot and cold water cooler doesn't need plastic bottles to provide refreshing, clean water. In fact, this unit takes its water from a water line for an unlimited water supply... |
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Clover D14A Hot and Cold Point of Use Water Dispenser With Hot Water Control Switch
Sale Price: $254.00 |
DescriptionNow you don't have to worry about wasting extra time and money on replacing plastic water bottles for your water cooler! The Clover D14A hot and cold point of use water dispenser is even more efficient and economical than bottled water dispensers - it provides more gallons of cold water per hour without using plastic water bottles!Hot and Cold Water TanksBoth of the D14A's hot and cold water tanks are constructed from durable hygienic stainless steel for durability and longevity... |
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GE Merlin Reverse Osmosis Drinking Water System
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DescriptionGE Infrastructure Water and Process Technologies has achieved a revolutionary breakthrough in the water treatment industry. Out-of-the-box thinking and years of research have produced a totally new point-of-use drinking water system... |
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Eccotemp L5 Portable Tankless Water Heater and Outdoor Shower
List Price: |
DescriptionEnjoy instant hot water wherever you go with the Eccotemp L5 Portable Tankless Water Heater. Generating more than 1 gallon of hot water per minute, this compact, energy-efficient heater creates a more comfortable and convenient outdoor experience for you and your family... |
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Rheem RTE 13 Electric Tankless Water Heater, 4 GPM
List Price: |
DescriptionIdeal for Point-of-Use Applications Continuous Hot Water on Demand Energy Efficient Compact Design - Fits Almost Anywhere On-Unit Temperature Control LEDs Indicate Active Element and Standby Mode Standard 1/2" Water Connection Rugged Brass/Copper Heat Exchanger Applications Homes Apartments Condos Hospitals Hotels Boats Restaurants Offices Laboratories ... |
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Bosch GL4 Ariston 4-Gallon Point-of-Use Indoor Electric Mini-Tank Water Heater
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DescriptionThe Ariston 4-gallon point-of-use electric mini-tank water heater eliminates the wait time for hot water to come from the sink faucet. You can install the heater independently or in-line with a larger water-heating source... |
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Camco 11773 10 Gallon RV Hot Water Hybrid Heater
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DescriptionConverts your RVs gas-powered water heater so it can use electricity. When your RVs propane supply is running low, flip the power switch, set the adjustable thermostat and the stainless steel electric-powered heating cartridge brings the water to temperatures ranging from 90F to 150F... |
Point of Use Tankless Water Heaters - Going Green With Your Hot Water!
Point of use water heater installations are where tankless units really shine. A tremendous amount of water and energy is wasted when there is a long pipe between the water heater and the point of use. When you finish using the hot water the hot water left in the piping cools off...wasted energy. When you want hot water you have to run the cooled off hot water down the drain before you can get hot water...wasted water.
Since demand hot water systems can save a family of four between 10,000 and 15,000 gallons of water a year, by not having the pipe to begin with you should save just as much, but unlike the pumping systems, when you finish using the hot water you do not leave a pipe full to cool off, so you save even more energy!
Gas tankless water heaters
Since it takes so much energy to quickly heat water, the burners on gas tankless water heaters are larger than those on tank type heaters. Thus the venting usually has to be larger in diameter than that of conventional water heaters. For very high efficiency units the venting has to be stainless steel.
In order to achieve higher efficiency more heat is sucked out of the exhaust gases and so the gases are cooler and acids can condense on the walls of the venting. That is why they need to be stainless steel.
Many point of use tankless water heaters come in both inside and outside models. The outside models are for mounting on an external wall of the bathroom or wherever the fixture being serviced is located. This eliminates any venting problems.
Along with the large venting requirements, they often need a larger gas line than standard water heaters are plumbed with.
Some gas models require an outlet for power to run the electronic circuitry that regulates the temperature, and so during power failures these models will not operate. There are some models that generate the electricity they need to run from the flow of water through the unit. Clever.
Electric point of use tankless water heaters
The electric units don't suffer from the need for larger gas lines and venting of course, but they are even more limited in their ability to produce hot water on a gallons per minute basis. To get enough Kilowatts to heat a lot of water requires larger than normal wiring to carry the heavy current.
Typically a good sized electric tankless water heater will need a dedicated power run to supply it with electricity, and its own circuit breakers.
Size it correctly
Correctly sizing a tankless water heater can be a little tricky. Not only do you have to consider the gallons per minute at a given temperature that you want, but you also have to consider the temperature of the cold water coming into the heater.
In some areas the incoming cold water can be less than 40 degrees F and in other areas it's in the 50s or higher. This makes a big difference in the amount of hot water the unit can deliver. And the cold water temperature can change significantly from summer to winter.
Tankless water heaters have a minimum flow rate that is required to turn them on. So if you want a hot water stream from you faucet with a warm but not hot flow, you might find it difficult to achieve since to lower the temperature you typically adjust the ratio of hot and cold water with the fixture. But if as you lower the temperature and thus decrease the flow of hot water, the water heater may shut off due to the reduction in flow.
This can be a real pain if the pipe run is long, due to the inherent time delay produced by the trip from the heater to the fixture. Point-of-use water heater installations are not as much of a problem.
Going green with your hot water!
By installing a point of use tankless water heater you will have implemented the greenest of the green in hot water systems. You will save time, energy, water, and money.
About the Author
Save time water energy and money! Demand Hot Water Systems Explored and Compared: Metlund D’mand Pump Comparison
For more information about green tankless water heaters: Green Water Heaters Tankless and tank type water heater information.