best water heater for tiny home

Best Water Heater for Tiny Home

Looking for the best water heater for tiny home? If yes, then you are at the right place.

Some people will be just alright without a hot shower. 

Nonetheless, certain people will only feel alright after they have had a hot shower.

If you live in a regular home, you might not struggle to heat your water. However, the same cannot be said about living ina tiny home. 

This is because the popular water heaters for regular homes will not be suitable for a tiny home.

Although the average water heater for a regular home cannot be used in a tiny home, you do not have to worry as water heaters are designed specifically for small houses.

Contained in this article are some of the best water heaters designed for tiny homes. 

They include;

1. Eccotemp i12-LP Tankless Water Heater

This device is propane powered and is tankless. 

It was designed to be used in tiny spaces and is capable of producing 4.8 GPM of hot water. 

This, however, is dependent on different conditions. 

Additionally, it only makes use of 1.07 amps.

Eccotemp i12-LP Tankless WATER heater comes with lots of unique features. 

However, of these different features, one stands out; it can be installed very easily. 

Beyond being easily installed, it possesses a venting vent kit that is made from stainless steel. 

This venting kit fits into a standard outlet and does not need hard wiring.

You can easily adjust the temperature, set child lock, and turn the unit on and off because tempered glass is used to make its control surface.


  • It features a digital display
  • Its temperature control is completely automatic
  • It has a modern design


  • Installation is easy
  • It saves energy


  • It is pricey

Where to buy from

The best place to get this heater is from Amazon.- They sell at the best price ever!


2. The Campus 5L

This is an ideal water heater for a tiny house for anyone that is on a budget. 

It is referred to as the ultimate low budget water heater for tiny homes. This device can be used in campsites and in RVs.  

It makes use of propane as a source of fuel and was designed basically for portable use.

If you will be moving around very frequently and you always want to have a hot shower, the Campus 5L is a water heater you should consider getting. 

This device uses very little power that can be gotten from D-cell batteries. 

So long you have this water heater, you will not need to get a water heater that requires plumbing or wiring.

Although this water heater comes with lots of features, always bear in mind that it is not a device that can be fitted into your home permanently. Since it was designed for people that are always on the move, to use it, you should attach it to a tap or hose and heat the water you want to shower with.


  • It has a safety shut-off feature
  • It heats 1.32 gallons a minute
  • It features energy-saving technology


  • It is affordable
  • It is portable
  • It is easy to install


  • Its flow rate is low
  • It can’t send water to several taps at once.

Where to buy from

The best place to get this heater is from Amazon.- They sell at the best price ever!


3. Rinnai V Series V65Ip he

If you are looking to get a water heater for tiny homes that comes with lots of advanced features, the Rinnai V series V6 5Ip HE is a device you might want to buy. 

It is powered by propane and can be attached to any tiny home easily. This device comes out of the box Wi-Fi ready. 

Additionally, it can be absolutely programmed. 

You can always program such things as vacation mode, daily schedules, and timers. 

Amazingly, these things can be programmed from a distance.

Since this water heater is programmable, it offers a lot of flexibility and saves energy. 

This device was designed to be used indoors only. 

Although this means it will take up some of your interior space, it protects the water heater from winter and external influences.

With this water heater, you can enjoy up to 6.5 gallons of hot water in one minute. 

However, this is dependent on your water’s ambient temperature. 

With very cold water, you might not be able to provide up to 6.5 gallons of water a minute.


  • It features a vacation mode
  • It has a flow rate if 6.5 GPM


  • It helps you save cost
  • It ensures flexible use


  • It can only be used indoors

Where to buy from

The best place to get this heater is from Amazon.- They sell at the best price ever!


4. Rheem RTG-84XLN-1

If you are looking to get a tiny home water heater for winter, the Rheem RTG-84XLN-1 will make an excellent choice. 

It runs on propane and comes with lots of features that tiny home dwellers will find very useful. 

This device is more than one foot wide and is two feet tall. 

Also, it can be installed at the back or front of your cabin or tiny home. That’s not all. It has to be installed outdoors. 

This feature favors owners of tiny homes since the home is already small and does not contain ample space.

With this device, you can always enjoy immediate hot water by simply turning a knob. 

This is because it makes use of a hot start programming that ensures the system is always ready.


  • It can only be installed outdoors
  • It does not take up space


  • It is durable
  • It is perfect for winter
  • It comes with lots of amazing features


  • It is pricey

Where to buy from

The best place to get this heater is from Amazon.- They sell at the best price ever!


5. Rinnai RL Series HE+ Tankless Hot Water Heater

This tankless water heater is powered by propane. 

It can provide warm water for a home with three bedrooms and is ideal for an off-grid cabin or tiny home.

The Rinnai RL Series HE+ tankless water heater is capable of providing 7.5 gallons per minute of hot water and comes with a good number of unique features. 

This device was designed to allow you to heat the water in your pipe for a suitable schedule.

Due to this water heater’s many features, you can always have hot water when you need a shower, want to have a relaxing hot bath or wash dishes. 

Additionally, you can program this water heater very easily by linking it to your home’s Wi-Fi.

Since this water heater was designed for tiny homes, it is usually installed externally. 

You, therefore, will not have to worry about inadequate space when you get it.


  • It can be connected to your home’s Wi-Fi
  • It can be programmed
  • It is propane powered


  • It has a warranty of ten years
  • It is not bulky
  • It is mounted outside the house.


  • It is pricey.

Where to buy from

The best place to get this heater is from Amazon.- They sell at the best price ever!


Buying Guide

There is a lot you must know when looking to buy a tiny home water heater. 

Also, you will have to make several decisions.

Make a Decision on Getting a Traditional Hot Water Heater or Tankless Water Heater

There are several decisions you must make when looking to purchase a tiny house water heater. 

You will need to choose between a tankless water heater and a traditional water heater. 

Traditional water heaters come with a storage tank that keeps the water at a specific temperature. 

This way, you can always have access to hot water whenever you need one. However, this has a downside. 

It continually makes use of gas /power and can be quite expensive to maintain. Additionally, water is heavy. 

This means it must be kept in a part of the home that is reinforced.

Tankless water heaters, on the other hand, are relatively new. 

They provide hot water when there is a demand for it.

Tankless water heaters are usually not as big as traditional water heaters. Also, they are lighter and can be installed very easily. 

That’s not all. 

They save a lot of energy.

Electric Water Heaters vs. Propane/ Natural Gas Water Heaters

After choosing either a tankless water heater or a traditional water heater, you will need to decide whether you are getting an electric heater or a propane water heater.

Usually, electric water heaters are cheaper to buy. 

However, their cost of operation is not so cheap. 

Additionally, on average, they take a longer time to heat up. 

For people that are grid-connected, it is a great choice. 

However, the same cannot be said about off-grid people. 

Averagely, the electric water heater makes use of 4,000 watts of power per hour. 

You, therefore, can’t enjoy it if you are off-grid.

Gas water heaters are more expensive to buy. 

They, however, demand less for operation. 

Some of them need some power. 

Others, however, do not need any power.

Frequently Asked Questions

Can Water Heaters Designed for Regular Homes be used in Tiny Homes?

Water heaters designed for regular homes can be used in heating water in tiny houses. 

The only challenge, however, is a lack of storage space. 

Water heaters made for bigger homes are big and will be unable to fit into a tiny home.

Our Water Heaters for Tiny Homes Good Enough for Regular Houses

While water heaters for tiny homes have the capacity to warm water anywhere. 

They most likely will get overwhelmed very quickly.


I’m Lilian Lopez, the Editor + Hostess in Chief of AllHomeDIY. I love sharing home decor tips, DIY projects & ideas to make your life & home beautiful. I am slightly obsessed with the following: decorations, traditional molding, vintage rugs, flipping through design magazines & of course my family. AllHomeDIY was founded in the Summer of 1194. Created to inspire readers on hunting for their own style & how to accomplish it on any budget. Having years of experience as an International Hotel, Home, and Office Designer, I know the importance of creating a luxurious space & making every dollar count. Whether incorporating a high-end statement piece or the addition of a vintage find, I believe that it is not what you spend that gives your home style it is how you layer your space together. AllHomeDIY strives to continue to provide original content to my followers through room makeovers, office ideas, client projects, Product recommendations, DIY decor ideas & exciting brand collaborations. If you are looking to collaborate, or simply have a question… please contact me at
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