If your conventional water heater is out of order, a tankless water heater can save the day. It is a very handy product to have because of its ease of utility. Can you imagine living without hot water forever? The cold water is nice for sealing those pores and refreshing the body when the temperature is over a hundred degrees. But it cannot soothe an aching body or help clear out the dirt on your face like the hot water does. During the colder seasons, the hotness of the water will also motivate you to take a shower without skipping a day. This allows you to maintain your personal hygiene at all times.

The best tankless water heater is waiting for you to pick it up right now.

Marey Power Gas 10L 3.1 GPM Propane Gas Digital Panel Tankless Water Heater

Marey Power Gas 10L 3.1 GPM Propane Gas Digital Panel Tankless Water HeaterThis is a tankless water heater that makes use of zero electricity. It is approximately 21 pounds, and is very compact. You can connect it to a liquefied propane gas after putting two D batteries inside it. The digital panel displays the temperature of the water. It will only be activated when you turn the faucet on. The water pressure required is at least 10 PSI, and it can generate 3.1 gallons every minute.


The Marey Power Tankless Water Heater has an automatic ignition, but it will only shut down when you turn off the faucet. You won’t have to be wary of the time when you are bathing, because the hot water will not run out on you.

It can be installed wherever you want it as well. This tankless water heater is not that big, so you can easily place it in the bathroom. If you like staying in a camping or glamping site for days, you will not need to bathe with cold water.

Propane gas is used to make the product work. There is no guideline that prohibits you from connecting the tankless water heater to a certain amount of gas. However, in case it will be utilized by more than five adults, getting a bigger propane cylinder is good. This can lessen the number of times you have to install a new gas.

Because it uses LP gas, you get to utilize the electrical energy more effectively. The approximate percentage of energy that you can save while using the apparatus is 60%.

This also heats the water up fast. You do not need to wait for hours and be late for your meetings. You can see how hot it is getting on the digital screen built in it.

The digital panel will let you control the gas consumption as well as the water temperature.


You need a specific water pressure before the hotness can be activated. This can be a problem in case your shower does not give off a lot of water. You may have to turn on the other faucets in the house.

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Eccotemp L10 Portable Outdoor Tankless Water Heater

Eccotemp L10 Portable Outdoor Tankless Water HeaterThe Eccotemp L10 Portable Tankless Water Heater is an excellent water-heating tool that is fit for consumers who like to commune with nature as much as possible. It can be placed in your RVs, barns, log cabins, trailers or simply outside the house. This weighs no more than 27 pounds. There are only two rotary knobs which are needed to control the temperature and the amount of propane gas that will be consumed. It works for old and new water pumps that have a pressure range of over 25 PSI. it also comes with a rain cap, hose and gas regulator.


You can now go on long trips without missing your hot showers at home. This tankless water heater has been created to be used outside closed spaces. Hence, you can fix it at the rear end of your trailer or summer cottage with no trouble. If you have animals that you want to wash during the winter season, you can get hot water from this too.

The rain cap is stainless steel, so it won’t rust and require replacement after a few uses.

You do not need electricity to start the tankless water heater. It is powered by two D cell batteries which can be easily bought in the nearest hardware store.

Your water source does not matter at all, as long as the pressure requirement is met. In fairness to this product, the minimum pressure it asks for is only 25 PSI, which is very doable.

It has a thermal capacity of 74,500 BTU. This is what allows the tankless water heater to make your regular water hotter than 150 degrees Fahrenheit.

The automatic shutoff comes every 20 minutes. That is longer than what other products offer, so you will be able to finish bathing within that period. Remember that this is tankless, that’s why you do not have to wait long before the hot water runs again.


Due to the fact that it is built for the outdoors, the heat tends to fluctuate if you leave it uncovered. However, you cannot fully cover the tankless water heater because the fire inside feeds on the oxygen in the air.

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Rheem RTE 9 Electric Tankless Water Heater

Rheem RTE 9 Electric Tankless Water HeaterIn case you are looking for a product that is more suited for indoors, you will like the Rheem RTE 9. It is a seven-pound tankless water heater which requires 220 volts of electricity to function. This is amazing for hospitals, apartments, condominiums and homes that have scarce space in their backyard. It can produce up to three gallons of hot water per minute. You do not have to guess if it is on or not, because you can check the red LED whether the item is on active or standby mode. The water temperature can also be exacted from low to medium to high on the unit with the rotary knob.


What is amiable about this tankless water heater is that it is very lightweight that you won’t need a lot of back support for it. It is only 10 inches long and 7.25 inches wide too, that’s why it will not be look imposing even in a small bathroom.

The unit does not also consume large quantities of electrical energy. This fact has been certified by the Energy Star, so that can smoothen out the initial doubts of the consumers.

Its control panel makes it effortless for you to manage the heater. To ensure that your hot water is ready, you simply have to see one of the LEDs lit up. If you only want warm and not scalding hot shower, the single knob on the same panel can be rotated clockwise to achieve the anticipated temperature. The graphic that goes along the product is quite helpful, as it gives people an idea of where to position the knob.

You can use the hot water almost immediately, because it is a Point of Use tankless water heater. This means that the heat is directed near the faucet, instead of gathering it first in the center. It greatly provides you more time to prepare yourself for the day ahead.

In addition, it needs no drain pan since it runs on electricity.


This may not work for inlet water that is around 55 degrees Fahrenheit.

It also does not clearly specify that for those who utilize plastic pipes, you will need to get 36-inch copper pipes for both the input and the output sides of the water.

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Ecosmart ECO 27 Electric Tankless Water Heater

Ecosmart ECO 27 Electric Tankless Water HeaterSmart consumers are a nice match for Ecosmart ECO 27 Electric Tankless Water Heater. This is a lasting product that weighs approximately 17 pounds and measures 20 by 20 by 6 ½ inches. It has a hotness capacity that reaches 92,000 BTU per hour. This can give around 3 GPM. It can be installed in large bathrooms that have a greater need for hot water. It is the second biggest heater in the Eco line that makes use of a self modulating technology which is patented by the manufacturer. The control panel features a stainless rotary knob, a digital display screen, and an on/off button. There is a written guideline too for the consumers.


This has three 9-kilowatt heaters inside the unit. The cool thing about its self modulation function is that they do not work at the same time. Thus, if you are just turning one faucet on, you do not need all of the heaters operating. But if you have several bathrooms in the house and you have a big family, this can provide hot water to everyone.

It has a WaterSense certification as well, so you can be assured that your water bill will not blow up.

The power button is a great add-on that can help you consume less energy too. You only need to switch the tankless water heater on when you are about to use it. This will also save the amount of heat that you can lose, in comparison to conventional heaters that have water storage.

Another likeable fact regarding the unit is that it can be fastened to the wall. It does not require any more than four screws to keep the apparatus in place. This entails quicker installation time for you.

You probably will not have to hire a professional plumber either. The manufacturer has made a noble choice of adding diagrams in the package so that you know where certain wirings go.

You may also like the digital control system that has been built into the product. It seems very advanced because you can actually read the temperature as it changes. You can go from Fahrenheit to Celsius, or vice versa, as well if that’s what you want.


There is a possibility that it can make your breakers trip. It may require additional valve kit too in order to ensure that it works properly.

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Stiebel Eltron Tempra 24 Plus Electric Whole House Tankless Water Heater

Stiebel Eltron Tempra 24 Plus Electric Whole House Tankless Water HeaterWhen you are pretty lax about the price tag and you just want a reliable water-heating system in your place stat, you should be getting the Stiebel Eltron Tempra 24 Plus Electric Whole House Tankless Water Heater. It was created by a German company Stiebel Eltron which has been making heating merchandise since 1924. It has a colorful and highly descriptive digital control panel. Its weight is 15.4 pounds, and has a power of 240 watts. It calls for two 50-A or one 100-A breaker(s). The unit does not require batteries nor gas – only electricity.


Having a Stiebel Eltron Tempra 24 Plus Electric Whole House Tankless Water Heater can lessen your worries immensely about hot water. It provides endless supply of that because it only heats the water that passes through it. The product obviously has no storage facility, which is another plus, because it ensures that the water that comes in contact with your body is not stagnant.

It does not have to be ventilated well too. It will not generate carbon monoxide, that’s why you can install it in your home safely.

The thermal unit indicated is in degrees Fahrenheit, and this is visible in the electronic temperature control. What is amazing about this control board is that it is quite extensive. It suggests that you can alter the hotness of the water based on its usage: for hand washing, for residential use, and for greater needs such as filling a large tub or a small pool. It is labeled nicely as well, so the consumer does not need to rely on the instruction manual every time.


This may not be useful in locations where hard water is prevalent. Because the tankless water heater does its job efficiently, the calcium or any metal in the water can separate and solidify the insides of the pipes. This will cause the low amount of water coming out of the product.

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Energy Consumption

Marey Power and Eccotemp use propane gas and two D-sized batteries to ignite the fire in the tankless water heater. Both of them do not eat up a lot of energy, even at costant utility. In another note, Rheem, Ecosmart and Stiebel Eltron run because of electricity. Among the three, only the Rheem RTE 9 has gotten a certification from the Energy Star. Ecosmart maintains a WaterSense authorization, which is for water-saving.


These heaters may vary when it comes to what makes the water hot, but they can all be compared in terms of how competent they are at providing hot water to the consumers. Since Marey Power and Eccotemp make use of a central heating system, the hotness of the water may fluctuate at times. They also have to be set up outdoors, for the reason that their exhaust should not be inhaled by humans. Rheem, Stiebel Eltron and Ecosmart have the heat applied closer to the water, so they are more efficient in that sense. Their difference is that the first-mentioned is sensitive to the coldness of the water that goes in the inlet, the second one cannot handle hard water, and the third can trip the breakers without extra precautionary measures.


You know you do not need to stay with your chilly water or over-consuming water heater, specifically if you can afford a Stiebel Eltron Tempra 24 Plus Electric Whole House Tankless Water Heater. This can really remove the limits that your tank heater has bounded you to. If you have had to quickly shower so that your housemates can also use the hot water, now you can all take longer baths without the thought of the water running cold at the back of your mind. If your old water heater can just provide hot water to the bathroom, this product can be used for the kitchen, the lavatories and even the greenhouses too. Though it is a bit pricier than the other heaters pointed out in this article, the efficiency of the Stiebel Eltron Tempra 24 Plus tankless water heater greatly matches it.

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