Water Heaters for Tiny House RVs

Determining which water heater you should purchase for your Tiny House RV depends on a variety of factors, including:

  • Cost vs. Reliability
  • Power Availability (Propane vs. Electric)
  • Tank vs. Tankless
  • Size vs. Capacity 
  • Temperature Rise (with tankless)
  • GPM (Gallons Per Minute)
  • Venting (with propane)

In our weekend workshops we provide in depth information regarding water heaters for Tiny House RVs. Below is a small portion of the information discussed.

Tank Vs. Tankless - A Few Things to Consider 

  • Tankless water heaters tend the be more efficient as the water is heated only when needed.
  • Tankless vary in their heating capability (re: temperature rise and speed)
  • Excellent article detailing how to select to correct size for your tankless water heater
  • Tank water heaters vary is size and capacity (6, 10, 12, 16 gallons, etc)
  • Tank water heaters keep the water hot within the tank at all times, which can use substantial energy
  • Make sure, no matter which model you choose, that your heater is covered under warranty for DIY installation or hire a professional to install your water heater.

Electric Water Heaters & Solar Power

If you plan on powering your Tiny House RV with solar energy and prefer electric water heaters, your solar system needs to be able to accommodate your chosen appliance. Many of our solar customers choose to go with a propane RV water heater to conserve electricity. 

Brittany Yunker's Electric Water Heater in her Tumbleweed

Brittany's Electric Tank Water Heater

Brittany Yunker owns a Tumbleweed Cypress with a six gallon RV tank electric water heater. This model retails at $270. In an effort to conserve energy, she switches her water heater on before showering and switches it off immediately after. It takes about twenty minutes to heat the water in the six gallon tank, therefore planning your hot water needs ahead of time is necessary with this method.

Photo courtesy of Heatworks.com

Jeff & Megan's Electric Tankless Water Heater

Jeff and Megan from Room To Spare Tiny House just produced a detailed video on their compact tankless electric water heater: the Heatworks Model 1. This product retails for $469. The price, specs and size make this model a real option for Tiny House RVs. We can't wait to hear how it's working out for them.


Check Room To Spare's website and facebook soon for more info on this water heater and their Tumbleweed Linden.

Propane Water Heaters

Propane water heaters require propane tanks to be stored on the exterior of your Tumbleweed. One model that we recommend is the Precision Temp RV-550NSP, which retails at $1,150. The major advantages of this water heater, aside from its ability to heat water in five to ten seconds, is that it provides 80 degrees of temperature rise and has an internal function that prevents freezing (more on that below). 

 The Precision Temp Propane Water Heater in a Tumbleweed Cypress

No matter if you choose to have one propane appliance or more, we recommend storing at least two propane tanks on the exterior of your Tiny House RV - one in use and one as a back up. Maintaining full propane tanks requires some effort, but once you have a routine in place, it’s easy.

Pictured above is the Noritz Tankless Propane Water Heater mounted to the exterior of Art's Tiny House RV. Art chose an outdoor model so that he could save space inside his Tiny House RV and because it doesn't freeze in Louisiana, where he's parked. This model retails for $620-997 depending on your GPM. The Nortiz indoor mounting models retail for $1,000-$2,000.

Venting & Cold Weather for Propane Water Heaters

Most RV propane water heaters require a side vent, which can be an eye sore on the side of your Tiny House RV. Venting to the outside means that some piping will be exposed to freezing temperatures. The water inside the pipes can cause the pipes to burst if frozen. This particular problem is usually not covered by the warranty. Some models need to be mounted outside the Tiny House RV and are even more prone to freezing. 

The Precision Temp propane water heater has a built in thermometer (available optionally), triggering the unit to fire up when the temperature falls below freezing. It also vents through the floor, so the vent hole will be hidden from sight. 

Tiny House Giant Journey uses the Precision Temp water heater in their Tumbleweed Cypress. Their solar powered Tiny House RV also features a propane stovetop and a propane refrigerator. With two people using these particular propane appliances, they need to refill one 15 lb propane tank every 4-6 weeks, which costs $15-$20.

Share your thoughts on Tiny House RV water heaters. Recommend trusted brands. Finally, attend one of our workshops for more information on appliances and much more. 


Jenna BioJenna Spesard is currently living and traveling around North America in a DIY Tumbleweed Cypress with her partner, Guillaume, who is a professional photographer and Tumbleweed Workshop host. They are photographing and writing about their adventure and occasionally they will be hosting an open house. Follow their informative blog. 

Written by Jenna Spesard — July 30, 2015

Filed under: electric   propane   solar   tankless   Tiny House   Tiny House Movement   Tiny House RV   Tumbleweed   water heater  

Ariel's Off-Grid 24 Foot Tumbleweed

Ariel's Off-Grid Tiny House RV in Wyoming

Wouldn't it be nice to travel anywhere with your Tiny House RV without worrying about "plugging-in?" Ariel McGlothin just purchased a Tumbleweed 24 Cypress, and she customized her Tiny House RV to be completely off-grid, even in the cold winter climate of mountainous Wyoming. 

"The propane heater built into my RV does an excellent job of providing steady, even and comfortable heat," Ariel explains. "The only thing I would prefer comfort wise is a heated floor as my feet have always tended to be cold, but I chose not to go with that due the the power use and knowing that (my Tiny House RV) would be off-grid."

Ariel's lofted bedroom

Ariel chose the 24 foot Cypress model, and her layout was customized to have a large kitchen for cooking meals from scratch. Some other customizations include: converting her closet into a pantry, adding a double sink and creating a smaller custom shower stall in order to make her kitchen larger.


"I use my oven and all four burners," Ariel explains. "So it (the full range appliance) is absolutely worth the space for me." 

The benefits of being off-grid include self-sustainability, a lower carbon footprint and reduced utility bills, but it's not for the faint of heart. "(Being off-grid) is a commitment." Ariel admits, "I don't mind that, but it does require more thought than being plugged into the grid somewhere. I just have to be mindful of things."

How Ariel's Tiny House RV Functions Off-Grid:

1). Solar & Generator

When it's sunny out, Ariel is able to provide the electricity for her Tiny Home RV with solar panels. On a cloudy day, she switches on the generator to recharge her batteries. "I take an extra minute in the morning to run up the bank behind my RV to dust the snow off the solar panels," Ariel explains. "I recharge camera batteries and my laptop, while the generator is running."

2). Propane Appliances

Ariel's heater, water heater, stove and oven are all powered by propane rather than electricity. "I need to monitor my propane tanks and fill them as each one gets empty so I'm not suddenly without heat," Ariel comments. 

Her refrigerator is Energy Star rated, meaning it uses less electricity than most models. 

3). Water Tanks

Ariel's Tiny House RV has a 26 gallon water tank hidden under the kitchen sink. She fills this weekly by hauling jugs of fresh water to her RV and pouring them into the exterior water inlet. The tank could also be filled using a garden hose, if she had one nearby, and if it wasn't frozen.

Consumption wise, Ariel uses about 140 gallons of water a month not including her showers that are usually taken at the gym. "It's been fun to measure my use of things." Ariel tells us. Because of this, she has become very conscious of her usage. 

4). Composting Toilet

Ariel has a Nature's Head composting toilet, the fan favorite for manufactured composting toilets in the Tiny House RV world. She dumps her urine container about once a week. The "solids" compartment is rated for 90 uses before dumping.

"None of this is hard, it's just a commitment to extra regular chores that people typically do not have any experience with these days." - Ariel McGlothin


For more details on Ariel's tiny house or off-grid living tips, check out her informative website here.

All photos provided by Ariel (who is an excellent photographer)! More of her work on her website.


Jenna BioJenna Spesard is currently traveling around North America in a DIY Tumbleweed Cypress with her partner, Guillaume. They are photographing and writing about their adventure and occasionally they will be hosting Tumbleweed workshops and open houses. Be sure to follow their tiny house and giant journey.



Written by Jenna Spesard — April 13, 2015

Filed under: 24 foot   Ariel   Cypress   Dickenson Heater   Kitchen   Off-grid   Propane   Solar   Tiny home   Tiny House   Tumbleweed   Water Heater   Water tanks   Wyoming  

Who Loves the Sun?

I once met a vegan who ate plants because they were closer to the sun. His reasoning: if plants get power from the sun, animals eat plants, and we eat animals or their byproducts, we get shortchanged in the sun department. By simply eating plants, therefore, he  figured would close the gap and be fortified with much more solar energy.

Luckily, the universe has finally come to its senses and allowed cheese-lovers like myself an opportunity to harness the power of the sun in a less calcium-deprived way: solar panels.

Soaking up the sun 

It's hard to think of a better way to power a tiny house. After all, you can get sunshine pretty much anywhere you bring your home. Install a panel or two on the top of your house and boom! Good to go! Or, you can try my personal favorite and use a plug and play system. This way, you can place your panels wherever you'd like.

(See also: A Tumbleweed in the Sun)

Given the small scale of a Tumbleweed, a little energy goes a long way. On a sunny day you've got yourself a pretty bright little space already, and you'll probably want to spend your hours basking outside on whatever gorgeous piece of land you're currently calling home. Then, when the sun moves on to power another hemisphere, you tap into your stored supply of solar juice, turn on a couple light bulbs, plug in your two or three necessary electronics, and live it up.

That said: yes, the sun is great, and with some smart investments, we should be able to do all we want electricity wise. But the first way to save money and help our earth is to scale down our usage in general. Just because the sun shines fairly reliably doesn't mean we should go crazy with it- after all, our usage of electricity goes beyond what's powering our devices. We have to think about who is making them and how, what they're contributing to on a larger scale, and if we actually need all of them on a regular basis.

Start by figuring out what uses the most power, then figure out if there's another way you can swing it. For instance, an electric water heater will use a good amount of electricity. Instead, why not try a simple passive solar water heating system? 

You can read about how Laura decided which appliances made the most sense here

In a tiny house, you'll probably find it easy to realize exactly how little you need- the rest will seem like clutter in no time. So live simply with solar power, and live simply with your solar-powered devices. But more importantly, get out and run around in that sun!

Have a good story about your solar powered tiny house? Submit it! 

Written by Nara Williams — December 18, 2012

Filed under: appliances   off-grid   Power Station   solar  

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