7+ Top Tankless Water Heater For Tiny House and For Small Home Reviews 2020!

The tankless water heaters are frequently utilized residential water heating machines. You can either use them for a large home or tiny home with diverse types and water flow rates. Tiny or small studios do not have enough room for a large water heating system, especially for the ones with tanks; therefore, we have compiled a list of several top tankless water heaters for a tiny home. You can choose any one of these that best suits your requirements.

Best Tankless Water Heaters for Tiny House:

1. Rheem RTEX-18 Tankless Water Heater:

Rheem RTEX -18 Tankless water heater for tiny house

Key Features:

  • Self-Modulation System:

Rheem  Rtex-18 tankless water heating device has the self-modulation technology, which makes it possible to adjust the power of the device when the demand for hot water is high. This device is more powerful than the RTEX-13 series but is also a little larger.

  • Simple Operation:

You can see the temp of the water on the screen it has. You can also accurately adjust it one degree at a time. The water temp lights up when you switch the valve on, and the error codes can also be seen for the reminding.

  • Quiet Working Noise:

This tankless unit can work really quiet and smooth. You will not hear any working noise or the clicking relays either while it is working. But the waiting time for the hot water is a little long. It will take about forty or fifty minutes for the heated water to flow.

Pros:

  • External digital thermostatic control having LED display
  • Quiet functioning performance
  • Durable copper immersion
  • Can be utilized in the colder climate
  • Handle one shower and one sink at the same time

Cons:

  • Take up some seconds for heating up the water
  • _
  • _
  • _
  • _

2. Rheem RTEX-13 240V Heating Chamber Residential Tankless Water Heater:

Rheem RTEX-13 240V For Tiny House

Key Features:

  • Simple Installation:

This tankless water heater is very simple to install. It will take just about an hour to hook it up. The multiple stranded cables make a connection much simpler. The max water flow rate of this tankless machine can really reach up to four GPM.

  • Compact Shape:

It is a lightweight model and is created as a small compact shape, so it’s an ideal one for the small house or studio use. You can fit it near as point of use. The fast heating performance of this device provides constantly heated water in just a few secs. It will take about fifteen secs for the heated water to flow to your sink.

  •  Stable Water Temp:

With the delicate design, the water temp stays the same, even when utilized for a longer time. The digital temp settings and LED light make it simple to operate and adjust the exact temp you desire.

Pros:

  • Cash saver on installation and use
  • Ideal for the single bathroom usage
  • Compact shape
  • Affordable cost
  • Fifty to seventy degrees Fahrenheit temperature
  • Endless supply of hot water

Cons:

  • Utilized for the tiny or small house only
  • _
  • _
  • _
  • _
  • _

3. Takagi T-KJr2-IN-LP Indoor Tankless Water Heater:

Takagi T-KJr2-IN-LP

Key Features:

  • 6.6 Gallons Per Minute Of Water Flow Rate:

The water flow rate of this device can reach 6.6 GPM. It is capable of supplying constant hot water for several kitchen faucets and bathrooms simultaneously. But when utilized in the cold areas, the water flow rate might drop to three to five GPM.

  • Stylish, Compact & Light Shape:

This Indoor tankless water heater is the smallest and lightest among all the Takagi lines of products. This unit can really save much room for the house, and you can simply hook it up anywhere in the house. It is also simple to install it, and it will take about some hours to install it all by yourself.

  • 150 Degrees Fahrenheit Temp:

The max water temp is up to one hundred and fifty degrees Fahrenheit. It is capable of fulfilling the demand for hot water for everyday residential use. The 140000 British Thermal Units per hour power input is required to make it work. The thermal efficiency of the device is 0.81. It’s not powerful enough for fulfilling meet the demand for big home use but is an ideal one for a point of use or small home.

Pros:

  • Smallest and lightest among Takagi tankless water heaters
  • Digital remote control
  • Low heating and using costs
  • Space saver
  • The constant supply of hot water
  • Simple to be installed

Cons:

  • The working sound can be heard
  • _
  • _
  • _
  • _
  • _

4. EcoSmart ECO 27 Electric Tankless Water Heater:

EcoSmart ECO 27

Key Features:

  • Digital Control System:

You can easily operate this tool using the digital control system it comes with. The water temp can be adjusted up and down with one increment at a time for finding the exact water temp you would like.

  • Space Saver:

This unit is small and lightweight. This particular model is regarded as the smallest and lightest one in the complete line of EcoSmart tankless units. Once installed properly, it’s said to save twelve cubic feet and thus can be ideally utilized for the best tankless water heating unit for a tiny house.

  • Cost-Saving:

The self-modulation technology that it comes with makes it possible to draw the energy just when the unit is being used. The internal design f the device can help you save about fifty percent on the water heating charges. In the cold areas, this unit can provide three gallons per minute, and when utilized in the warmer regions then can provide six gallons per minute.

Pros:

  • Run two showers at the same time
  • Unlimited supply of hot water
  • Heating elements are simple to be replaced
  • Stainless steel and copper components
  • Large water flow rate for the constant hot water
  • Digital control system

Cons:

  • The temp can’t be set as right as the company promises
  • _
  • _
  • _
  • _
  • _

5. Eccotemp FVI-12 Liquid Propane Tankless Water Heater:

Eccotemp FVI-12 Tankless water heater for tiny house 2020

Key Features:

  • Compact Design:

The device is very lightweight, and you can simply hook it up anywhere you desire. The compact and stylish shape of the unit can really save much wall space for a small house. It’s simple to read the digital temp display, but it is quite difficult to adjust the exact water temp you desire.

  • Gas-Powered:

The max water flow rate of this tankless water heater for a tiny house is 3.6 GPM. The self-modulation technology makes it work just when the users are using it. Thus it can save much energy. You have to get the ventilation facilities for safety using. It’s capable of supplying hot water constantly for one bathroom use only.

  • Safe Electronic Ignition System:

This tankless water heating device also comes with the electronic ignition system same as the Eccotemp i12-LP. You have to plug it into the standard 120v electric outlet having the UL-listed cable.

Pros:

  • Ideal for apartment, small home, and cabin
  • Energy saving
  • Lightweight and small shape
  • Low working noise
  • Meet the demand for the single bathroom usage
  • Endless supply of hot water

Cons:

  • Hard to adjust the exact temp you desire
  • _
  • _
  • _
  • _
  • _

6. Eccotemp i12-LP Liquid Propane Indoor Tankless Water Heater:

Eccotemp-i12-LP

Key Features:

  • Automatic Temp Control:

This machine comes with an automatic temp control system for preventing overheating and keeping the water temp stable. For saving energy, you can easily adjust the energy-saving mode. For avoiding any kind of unintentional adjusting of the water temperature, it also has child lock technology.

  • 4.8 Gallons Per Minute Of Water Flow Rate:

The water flow rate of this device is between 0.6-4.8 GPM. The gas rate of the unit is between 25000-80000 British Thermal Units per hour. This tankless machine can easily support one kitchen faucet and one bathroom simultaneously.

  • Safe Electronic Ignition System:

It requires plugging into the standard 110v electrical outlet having the UL-listed cord. The electronic ignition system can really make this device safer in the using process. The sleek and modern design of the system with simply operated LED display control provides the users with the best enjoyment while using.

Pros:

  • Horizontal stainless steel venting kit
  • No pilot light required
  • Sleek, straightforward design
  • Ideal for small tiny houses and vacations cabins use
  • Automatic temp control
  • Supports one bathroom and one sink the same time

Cons:

  • It has to be plugged in
  • _
  • _
  • _
  • _
  • _

7. Bosch Tronic 2.5-Gallon Electric Mini-Tank Water Heater:

Bosch Tronic 2.5-Gallon

Key Features:

  • 2.5 GPM Of The Water Flow Rate:

2.5 GPM water flow rate allows for supplying hot water constantly. But because of the small power it has, it lacks consistency in the temperature of the water.

  • Sink Use Only:

This device is a point of use type and can be used for kitchen faucet or the bathroom only. It’s capable of being floor-mounted, or wall hung, and the waiting time is super short, will take just about a second.

  • Compact And Small Shape:

It’s very small and can easily be installed under your water sink. For the large and fast amount of heated water, we recommend it be fitted near where you intend to utilize the hot water. The functioning of this tankless water heater is also easy, no complicated machinery is appended, and you just require plugging it into the outlet.

Pros:

  • Compact design
  • Ideal for sink
  • Simple installation
  • Easy operation
  • Fast recovery on the heated water

Cons:

  • Lack of consistency of the water temp
  • _
  • _
  • _
  • _

8. Atmor 27kW/240V Electric Tankless Water Heater:

Atmor 27kW240V

Key Features:

  • Digital Temp Control:

The temp range of this device is between ninety and one hundred and thirty-five degrees Fahrenheit. You can easily set the water temp in a 1-degree increment. It’s also able to automatically detect the water flow by switching it on/off by itself, thus can eliminate the wasted flow and lower the water consumption very much.

  • Lightweight:

It weighs just seventeen pounds so you can fit it anywhere you desire. It is also capable of being fitted point of use. The small footprint can really save much room for you. The fitting is also simple and straightforward. Anybody who acquaints about the basic knowledge can install it under clear instructions.

  • Energy Saver:

It’s said to save fifty percent on the electricity bills. The advanced ThermoPro self-modulating system of Atmor is adopted for regulating the energy amount needed to heat the water.

Pros:

  • Compact shape and lightweight
  • Long service life
  • Highly energy efficient
  • Simple installation
  • Hard-wearing stainless steel interior
  • Digital temp control

Cons:

  • You have to purchase one pressure relief device from the company and fit it along with the device
  • _
  • _
  • _
  • _

Features Of The Tankless Water Heaters For Small House:

There’re a few common top tankless water heaters for small house features; when you pick one, you can combine different features together and check which tankless water heater for tiny house suits your family the most.

  1. Small Water Flow Rate:

As there’ll be just 1 or 2 bathrooms for a small home, the tankless water heating unit doesn’t require getting such a large water flow rate; it requires just meeting the demand of 1 bathroom and one sink simultaneously. The small water flow rate also assists in saving much heating and energy costs for the users.

  1. Small Shape:

Certainly, the main feature of a tankless water heater for the tiny home is its small shape. Having a small house, there’ll be less room for you to fit a large water heating system on a wall. The compact and small shape is capable of saving a large amount of room for the house. You can even fit a few of them under your water sink.

  1. Short Waiting Time:

The tankless water heating units for the small house has a shorter waiting time when compared to the large home types. The pipe that’s used is short, and thus it takes just a few secs for the heated water to flow through them to its destination.

  1. Point Of Use Types:

The majority of the tankless water heating machines for the small house are recommended to be fitted near the fixture, it requires just to supply the heated water for one bathroom use, thus fitting in your bathroom assists in reducing the waiting time for the heated water, and less cold water is wasted.

Tankless water heaters features

Attention:

If you really want to decrease the waiting time and rapidly get the hot water, you would better fit your tankless water heater for a tiny house near the application fixture. And keep in mind to keep the device dry at all times, fit it within a secure distance from the water for safety.

Different Small House Tankless Water Heater Types:

Three tankless water heaters types are frequently recognized to us, which comprises the small propane type, electric type, and natural gas ones when providing according to the power source.

Electric Tankless Water Heater:

These devices are frequently utilized for a tiny house. These units are lightweight and are normally made into a compact shape. The power rate and water flow rate are usually low, meeting the basic hot water demand of the small house one bathroom usage.

Natural Gas & Propane Tankless Water Heaters:

These two are basically the same, they are more often utilized for the large family, having a large power rate and water flow rate, and they can supply the constantly heated water for several bathrooms use. A few of the suggested top tankless water heaters for a small house with propane or natural gas power can also be utilized for the large family.

Besides, there’s also under sink tankless water heater or point of use tankless water heater. Most of the heating units are mounted on a wall because of the large shape they have, but the under sink ones are usually fitted under the sink, the water flow rate of these types is low, fulfilling the requirement of single sink usage only. Therefore, if you want to get it for the sink, you might contemplate the under sink ones.

What We Chose Is:

Among all the top tankless water heaters for the small house, we’d want to recommend the Rheem RTEX-13 Tankless Water Heater. It is the best-selling one in the previous year’s tankless water heater market. It is lightweight and has four gallons per minute of water flow rate. Thus it can really supply the constantly heated water for sink and bathroom use. The waiting time for this water heater is just fifteen minutes.

Rheem RTEX-13
Rheem RTEX-13 Electric Tankless water heater best choice

The delicate design of this unit makes it simple to operate and regulate the exact water temp you desire. Water temp will always stay the same. If you want to buy such items, then check out more product details or more information on Amazon. That might also help you in saving a lot of money because there are always great deals and discounts on different products available on Amazon.