Instant Hot Water Heaters
On this page you will find the following popular Instant Hot Water Heaters:
- Bosch AE-9.5 PowerStar 1.5 GPM Point-Of-Use Indoor Tankless Electric Water Heater
- Watts 500800 Premier Hot Water Recirculation Pump, Blue
- Sunpentown Hot-Water Dispensing Pot – 4 L
- Quick & Hot Instant 190 Degree Hot Water Dispenser with Satin Nickel Finish Faucet
- Bosch AE-12 PowerStar 2.0 GPM Point-Of-Use Indoor Tankless Electric Water Heater
- Bosch AE-3.4 PowerStar 0.5 GPM Point-Of-Use Indoor Tankless Electric Water Heater
- Watts 500528 Premier Four-Chamber Tankless Electric Hot Water Heater
Price:
US $169.99
Buy Now
Bosch AE-9.5 PowerStar 1.5 GPM Point-Of-Use Indoor Tankless Electric Water Heater
Designed to provide an endless supply of hot water for kitchen, bathroom, and handwashing sinks. 99% efficient. 5 year warranty on heater, 1 year on parts for both commercial and residential use. Installs vertically or horizontally. Solid copper heat exch
- Eliminates long waits for hot water
- Easy installation
- Mounts on wall in any direction
- 99-percent efficient
- This unit will operate on 220v at 84-percent of capacity and on 208v at 75-percent of capacity
Rating:
(out of 7 reviews)
List Price: $ 257.53
Price: $ 194.00
Bosch AE-9.5 PowerStar 1.5 GPM Point-Of-Use Indoor Tankless Electric Water Heater Reviews

My wife reminded me that our children and grandchildren were due to visit our cottage in one week, but not hot water. I placed my order on line and it was delivered in 3 days. Hot water at the cottage in 4 days. Wow it only took me 15 minutes to install. Then hot showers for all on the weekend. Great product.Bosch PowerStar 1.5 GPM Point-Of-Use Indoor Tankless Electric Water Heater #AE9.5

This heater works as advertised! The adjustments for temperature and the 220v hookup should be done by someone comfortable with these tasks – the instructions are not as clear as they could be. The indicator light is very helpful it adjusting the flow as it indicates when the unit is on (there is a click also).
Buy Bosch AE-9.5 PowerStar 1.5 GPM Point-Of-Use Indoor Tankless Electric Water Heater now for only $ 194.00!
Watts 500800 Premier Hot Water Recirculation Pump, Blue
All new hot water recirculating pump turns your existing plumbing system into a hot water loop. Installation is a breeze, recirculating pump mounts onto the hot water outlet on your water heater, 24 hour timer on pump can be set to turn pump On Off during
- Saves up to 15,000 gallons per year
- 24 hour timer lets you set it for your family needs
- Very easy to install
- Rebates may be available from utility company
- Includes pump, sensor valve, and supply lines for easy installation
Rating:
(out of 45 reviews)
List Price: $ 239.00
Price: $ 179.99
Watts 500800 Premier Hot Water Recirculation Pump, Blue Reviews

I don’t know why few stores carry this and few people are aware of this great product, including those sales persons in home improvement stores. It gives instant warm water to all the rooms in your house, it saves 10,000 gallons water a year (really, I measured and calculated) and it is so easy to install.
Doubt about if it really works? Try this: go to the farthest faucet in your house and open the hot water. Once the water becomes hot, close it, but not fully, leaving a very small stream. Now go to other faucets and open hot water, you bet, instant hot water! It’ll keep this way as long as you keep that small stream flowing.
The problem is that small stream goes wasted. How about recycle it into the hot water heater? Sure, but how? The hot and cold water lines have the same pressure, therefore water cannot go from the hot line into the cold line. What if I add a pump into the hot line? Exactly, that’s what this Watts product does. Problem solved.
For a practical and fine product, Watts also add a temperature sensor, so the recirculation only happens when the hot line becomes not so warm. This, plus the stream is really small, adds very small extra energy cost to the heater.
The pump is very small, only 25 watts, using less electricity than a lighting bulb. There is also a 24-hr timer (in 15-minutes increments), allowing you to shut the entire system off during the periods when you do not use warm water, such as sleep and work times. This reduces even further the already very small added energy cost. BTW, the pump is thoroughly quiet, no audible noise at all.
An alternative product is the Laing Autocirc. It is a single piece can all be installed under a sink, could be a better choice for some people. The downside is you need (to add) a AC socket there to power the pump. The upside is the pump does not operate continuously like the Watts; it is controlled by the temperature sensor and thus turns on only when water becomes not so warm. Might save some more Watts than the Watts. Both are available in Home Depot stores.
I cannot think of a single reason not to install such a system into any house. Instant hot water without any side effect or significantly added extra energy cost and saving tons of water each and every year. I wish I have done this long ago and this product will be more widely spread.
PS, a tip: before you start the installation, go to Rite Aid or alike store and buy a pack of Hose Washers for
Sunpentown Hot-Water Dispensing Pot – 4 L
Ideal for tea lovers or anyone who needs hot-water handy. User friendly, simply add drinking water and unit automatically start to heat water to boiling point. Maintains temperature at boiling point. Features one touch dispensing function and spinnable bottom.
- Stainless steel gall
- Removable top lid for easy cleaning
- Auto reboil and manual Re-boil button
- 360 degree spinnable bottom
- 1-touch water dispensing button
Rating:
(out of 10 reviews)
List Price: $ 69.99
Price: $ 64.00
Sunpentown Hot-Water Dispensing Pot – 4 L Reviews

I purchased this unit for my wife for Christmas of 2006 (started using in January 2007). As a frequent tea drinker, she loved the convenience of having hot water available on demand. Last week the unit started reboiling when it wasn’t supposed to and no longer stays on the “keep warm” function but instead keeps boiling as though we’d just filled it with cooler water. It also dispenses in spurts and gurgles, as though there’s air trapped in the line. The reslult is hot water spattering in every direction. Basically, it’s a hazard. Thank God we didn’t leave it plugged in while we were away.
I recommend this product for anyone who’s interested in having it work for 12-15 months before it fails. Those who desire unreliable appliances that could be fire traps might also be interested.

We bought the SP-4000 in the last week of 2005. It stoped working in the middle of March. I called the number on the back of the pot for warranty service and got an answering machine. They have not returned my calls. I guess they expect me to throw it in the trash. It was nice to have until it stopped working.
Buy Sunpentown Hot-Water Dispensing Pot – 4 L now for only $ 64.00!
.99 (e.g. Plumb Craft by Waxman, 74-114, 6 pieces). After you unplugged the hose from the heater and before you plug it to the pump, you should remove the old washer and use 1 or, if the old one is very thick, 2 of the new washers (I had to use 2). The old washer was usually hardened by the high temperature; if you don’t replace it, it will leak water. The menu does not mention this, so I learned this the hard way. BTW, hey Watts: for a 0 product, such washers should have been included.

I installed one of these Sunday since I was tired of running the shower 1 1/2 minutes to get hot water up to my 3rd floor bathroom. It does work, but there are issues.
First, the sensor valve setpoint is fairly low, I am guessing about 90-95. So the recirc stops when it reaches that temp. The really hot water is still back down the pipe a good ways. I suspect they do this to avoid scalding but in practice this make scalding more likely. That is if you get in the shower immediately because the water will keep getting hotter for awhile requiring that you adjust the faucet… or get scalded. So I still need to run the water awhile to get it hot.
Second, there is a certain amount of natural circulation that occurs even with the recirc pump off. It seems to happen more when the hot water heater is active like when running the laundry or whatever. Just creating a high temp diferential in the HW heater provides enough head to move water a bit. It isn’t a prolem in the winter but in the summer the additional heat loss from the pipes will add to the A/C bills. I have a workaround planned to fix this.
Also, the timer is very lame. Better just to turn the recirc pump “on” then control it through an X10 or Insteon timer and appliance module. Then the typical usage periods can be set to automatic and the recirc pump can be turned on and off manually with a keypad or remote for usages outside the programmed times.
Not perfect, but a worthwhile add on.
Buy Watts 500800 Premier Hot Water Recirculation Pump, Blue now for only $ 179.99!
Quick & Hot Instant 190 Degree Hot Water Dispenser with Satin Nickel Finish Faucet
Anaheim Manufacturing features high quality hot water tanks and faucets for your home or small office. They are designed for easy installation and maintenance with designer style faucets that are easy to install. Perfect for remodeling the kitchen, adding a wet bar or building a new home.
- Faucet Features: (Chrome or Satin Nickel finish, Fast and easy installation features Quick Connect connection fittings, All mounting hardware (included).1/4 turn ceramic disk cartridge: Will provide years of trouble free performance, Faucet dimensions: 9.5″ H x 6″ W.)
- Faucet Features: (Swivel spout with 4″ reach, Solid brass faucet. Faucet weight: 2.4 lbs., Limited Lifetime warranty.Single lever handle: Allows for fast and easy operation, Energy efficient and inexpensive to maintain.)
- Tank Features: (Fast and easy installation features “Quick Connect” connection fittings. Energy efficient and inexpensive to maintain.All mounting hardware (included).Tank dimensions: 11.2″ H x 6.8″ W x 8.1″ D .Tank weight: 6.3 lbs. 1-year limited warrant)
- Tank Features:(190 Degree Hot Water at your fingertips.780 watts, 6.5 Amps, 120 Volts, 60 HZ.Automated heater protection, prevents tank burnout in case of dry start.Patented self re-setting thermal fuse.5/8-gallon stainless steel tank.60-cups/hour capacity)
Rating:
(out of 7 reviews)
List Price: $ 220.00
Price: $ 125.50
Quick & Hot Instant 190 Degree Hot Water Dispenser with Satin Nickel Finish Faucet Reviews

I bought this water dispenser to replace an older unit (different brand) that began to leak after two years of use. I searched around for the best price and at 4.00 this is the lowest I found anywhere. Of course, I cannot say how long this unit will last, but by the way it was packed and the look and feel of all its parts, I’m confident it’ll last for a while…at least longer than two years.
Installation was a snapped; insert the faucet through the hole in the sink, install three quick disconnects…two going to the tank and one going to a cold water pipe, turn the water, fill up the tank by opening the faucet, plug the unit in and turn the thermostat to high. And just like that, in a few minutes, instant hot water.
Other thoughts: The cold water quick disconnect includes a very small metal filter. If your supply water is not of high quality or if you have hard water issues, most probably the filter will get clogged often. You can remove the quick disconnect to clean the filter, but it might be an inconvenience or you might end up having a bad water leak later on. I didn’t install the filter, opting to hook up the water dispenser to an osmosis drinking water system. Also, the house has a water softener, which prevents calcium formation on appliances and plumbing.
Quick & Hot Instant Hot Water Dispenser & Satin Nickel Faucet 213165

We bought this unit yesterday evening to replace a broken one of another brand. My husband and I were able to install it ourselves with very little trouble, and it works like a dream. It’s very quiet; it has a huge water capacity; and it does not sputter and pop. I’m very pleased.
Buy Quick & Hot Instant 190 Degree Hot Water Dispenser with Satin Nickel Finish Faucet now for only $ 125.50!
Bosch AE-12 PowerStar 2.0 GPM Point-Of-Use Indoor Tankless Electric Water Heater
Bosch AE12 PowerStar AE12 Electric TanklessThe PowerStar AE12 is an electric tankless water heater that can provide 2 gallons per minute with a 40 degree temperature rise which support a sink in colder climates or a low flow shower in warm climates. This electric tankless water heater unit also features thermostatic control.Bosch AE12 PowerStar AE12 Electric Tankless Features:; Temperature Increase / Gallons per Minute Relationship:; 72?? F rise / 0.5 gpm; 72?? F rise / 0.75 gpm; 72?? F rise / 1.0 gpm; 52?? F rise / 1.5 gpm; 42?? F rise / 2.0 gpm; 99% efficiency rating; Solid copper heat exchanger; Tough Plastic Housing; No temperature/pressure relief valve necessary (check local codes); Max temperature: 135 degrees; Dimensions: 12.25″ x 6.5″ x 3″; Minimum Flow Rate: 0.75 GPM; Wire Size: 6 GA; Voltage: 240V; Kilowatts: 12; Amps: 50; Designed to replace electric storage tank heater; 95% efficiency rating; Solid copper heat exchanger; Electronic flow switch; .8 gpm activation rate; 3/4″ male NPT fittings; External temperature control knob; Filter screen on inlet; No temperature, pressure relief valve necessary; Thermal cut-off for safety
- Eliminates long waits for hot water
- Easy installation
- 99-Percent efficient
- This unit is only designed to operate on 240v
Rating:
(out of 2 reviews)
List Price: $ 297.43
Price: $ 226.79
Bosch AE-12 PowerStar 2.0 GPM Point-Of-Use Indoor Tankless Electric Water Heater Reviews

This product is perfect for homes where the space is an issue or for locations distant from heating source.
The first heater we received and installed was mulfunctioning. After discussing the troubleshooting with BOSH, Amazon the same day we contacted them sent us new replacement. Returning the first heater could be easier. Thank you Amazon.com!
My electric panel was just some year new, we did not have to provide any additional works besides wiring the heater. I saved all closet space(where I had located 30gal. el water heater) for other use. Heater is very small, it would easily fit under the sink. Temperature of hot water can be adjusted to your needs. 2 gallons of hot water per minute are good enough. According to professional installer, the heater is so simple device, that it should not have any additional problems.
I am very happy with the product and am starting considering this type of hot water heater for whole house, no matter price for electrical works.
Where the space is an issue, this product is one of great solutions.
I am highly recomanding this heater.
Buy Bosch AE-12 PowerStar 2.0 GPM Point-Of-Use Indoor Tankless Electric Water Heater now for only $ 226.79!
Bosch AE-3.4 PowerStar 0.5 GPM Point-Of-Use Indoor Tankless Electric Water Heater
Includes AE3.4 Point-of-Use Electric Tankless Water Heater – AE3.4
- Eliminates long waits for hot water
- Easy installation
- Mounts on wall in any direction
- 99-percent efficient
Rating:
(out of 2 reviews)
List Price: $ 257.53
Price: $ 219.00
Bosch AE-3.4 PowerStar 0.5 GPM Point-Of-Use Indoor Tankless Electric Water Heater Reviews

This is for Jack Stecker. maybe you shouldn’t be crushing all those pills buddy, I think it’s negatively impacting your brain. This water heater is not intended to replace a tank water heater, it is not for your whole house.
If it is tripping your breaker, it is because you did not wire it correctly, or are using the wrong size breaker. The wire sizes that Bosch says to use are NOT intended as a guideline, they are the size that the unit needs. You are probably very lucky you didn’t burn down your house. Next time follow the instructions, ALL of the instructions, and take the pills AFTER you are done with the wiring. I have two Bosch tankless water heaters, and they are awesome, but they need to be installed correctly. And yes, they do draw more electricity when they are on than a conventional tank water heater, it’s just that they are only on when you need hot water. that draw is why you need to follow the directives about wire size. If it says 8ga wire, you CANNOT use 10ga.
Also, the size requirement for your house service needs to adhered to as well, if is says minimum 200 amp service, you cannot use it with a 150 amp service, you could burn your house down.
My advice, buy the 220v unit and have an electrician install it for you.
Buy Bosch AE-3.4 PowerStar 0.5 GPM Point-Of-Use Indoor Tankless Electric Water Heater now for only $ 219.00!
Watts 500528 Premier Four-Chamber Tankless Electric Hot Water Heater
The Watts Premier 4-chamber tankless electric hot water heater provides an endless supply of hot water. Designed for potable whole house residential applications as well as commercial applications, such as specialty restaurants, convenience stores, hotels and pet grooming shops, this hot water heater is ideal as a back-up to solar and/or geothermal passive heat recovery systems. Compact, lightweight, and microprocessor controlled, it contains power-sharing technology. The heating chamber is made of performance polymer nylon material.
- 4-chamber tankless electric hot water heater provides endless supply of hot water
- Ideal as back-up to solar and/or geothermal passive heat recovery systems
- Compact, lightweight, and microprocessor controlled
- Performance polymer nylon heating chamber
- Designed for potable whole house residential applications and commercial applications
Rating:
(out of 1 reviews)
List Price: $ 790.15
Price: $ 790.15
Watts 500528 Premier Four-Chamber Tankless Electric Hot Water Heater Reviews
Buy Watts 500528 Premier Four-Chamber Tankless Electric Hot Water Heater now for only $ 790.15!
Instant Hot Water Heaters Auctions
Price:
US $145.00
Buy Now
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