Imagine this: You’re ready for a long, hot shower after a day of adventuring outdoors, but your old water heater just can’t keep up. Or maybe you’re tired of that bulky, old tank taking up precious space in your garage. If you’ve ever thought about upgrading to an outdoor tankless water heater, you’re in the right place! These amazing gadgets heat water only when you need it, saving energy and giving you endless hot water.
But let’s be honest, choosing the right one can feel like a puzzle. You might be wondering about the different types, how much they cost, or if they can really handle your family’s hot water needs. It’s easy to feel overwhelmed by all the technical stuff. We understand these worries, and we’re here to make it simple for you.
In this post, we’ll break down everything you need to know about outdoor tankless water heaters. We’ll explore the benefits, help you understand the key features to look for, and guide you through the selection process. By the end, you’ll feel confident in picking a water heater that’s perfect for your home and your lifestyle. Let’s dive in and find the best solution for your hot water adventures!
Our Top 5 Outdoor Tankless Water Heater Recommendations at a Glance
Top 5 Outdoor Tankless Water Heater Detailed Reviews
1. Tankless Water Heater Propane 5.26GPM 20L Outdoor Portable Gas Hot Water Heaters Instant Propane Water Heater with Digital Display Multi-Protection for Camping Trips Boat Cabins
Rating: 9.4/10
Tired of cold showers on your camping trips? This Tankless Water Heater Propane 5.26GPM 20L Outdoor Portable Gas Hot Water Heaters Instant Propane Water Heater with Digital Display Multi-Protection is your solution for endless hot water wherever you roam. It’s designed for convenience and safety, making it ideal for outdoor adventures.
What We Like:
- It provides instant hot water, up to 5.26 gallons per minute, so you won’t run out.
- The heater is very energy efficient, saving you money on propane.
- It’s lightweight and portable, making it easy to take camping or in your RV.
- The digital display shows you the temperature, and it has multiple safety features like flame failure protection.
- It comes with all the accessories you need, including a CSA approved regulator and a nice showerhead.
- You only need a small amount of water pressure to get it working.
What Could Be Improved:
- It only works with propane, so you can’t use other types of gas.
- It requires 2 D cell batteries for power, which are not included.
- It’s important to always check for gas leaks before you use it.
This tankless water heater offers a fantastic way to enjoy comfortable hot showers outdoors. It’s a great companion for anyone who loves camping, boating, or any outdoor activity.
2. Natural Gas Tankless Water Heater
Rating: 8.5/10
Tired of lukewarm showers or running out of hot water? This Natural Gas Tankless Water Heater is a game-changer for your home. It provides endless hot water exactly when you need it, making those daily tasks much more enjoyable. Plus, its outdoor design saves valuable indoor space.
What We Like:
- Provides instant, endless hot water for up to 3-4 fixtures at once.
- Operates efficiently with low water pressure (as low as 3.6 PSI).
- Stainless steel body and oxygen-free copper tank ensure durability and long life.
- Precise temperature control keeps water within ±1℉ of your desired setting.
- Includes multiple safety features like flame failure and anti-freeze protection.
- Easy to install outdoors and comes with a convenient remote control panel.
- Energy-saving design reduces gas consumption and noise.
What Could Be Improved:
- Designed exclusively for natural gas (LNG), so it won’t work with propane.
- Requires outdoor installation, which might not be suitable for all homes.
This tankless water heater offers a fantastic solution for consistent, on-demand hot water. It’s an efficient and reliable choice for upgrading your home’s water heating system.
3. GASLAND Outdoors Tankless Water Heater Propane
Rating: 9.4/10
The GASLAND Outdoors Tankless Water Heater in bright red is a portable propane water heater designed for on-the-go hot water needs. This 1.58 GPM, 6-liter unit provides instant hot water for various outdoor adventures and remote locations, making it a convenient choice for anyone needing hot water away from traditional hookups.
What We Like:
- Delivers 1.58 gallons of hot water per minute, perfect for showers or washing.
- Starts up with low water pressure (just 3.6 PSI), making it versatile.
- Runs on a standard 20 lb. propane tank and uses D-cell batteries for ignition, ideal for off-grid use.
- Offers a range of safety features, including overheating protection and anti-freezing.
- The LED digital display shows the water temperature, so you can easily adjust it.
- Comes with a CSA certification for safety in the US and Canada.
- Includes essential accessories like a gas regulator, hose, and shower head.
- Comes with a 1-year warranty and lifetime customer support.
What Could Be Improved:
- It’s splash-proof, but prolonged exposure to rain can damage it, so it needs to be kept in a dry place.
- Requires draining for winter storage to prevent damage.
- Installation requires careful attention to avoid gas leaks, especially with the regulator and gas inlet pipe.
This GASLAND tankless water heater offers a convenient way to enjoy hot water in many outdoor settings. Its safety features and portability make it a solid option for camping, RVing, and more.
4. Propane Tankless Water Heater Outdoor
Rating: 9.2/10
Say goodbye to cold showers and long waits with the Propane Tankless Water Heater Outdoor, 5.2 GPM 130000 BTU On Demand Hot Water Heater. This powerful unit delivers instant hot water exactly when you need it, making it a smart choice for any home. It’s designed for efficiency and convenience, fitting perfectly into your outdoor space.
What We Like:
- It provides a generous 5.2 GPM of hot water, enough for 2-4 faucets at once.
- It works even with low water pressure, thanks to its 0.7 GPM minimum flow.
- It saves space and reduces indoor safety risks by being installed outside.
- Propane is more energy-efficient than electric, saving you money.
- It’s built tough for all weather, with windproof, freeze-proof, and waterproof features.
- The temperature stays steady within 1°F, giving you consistent comfort year-round.
- Setup is easy, and the remote control lets you adjust the temperature from inside.
- It has many safety features like flame failure and overheating protection.
- It’s CSA certified and comes with a 2-year warranty.
What Could Be Improved:
- It requires an electrical outlet for ignition, so you need power nearby.
This tankless water heater offers a reliable and efficient way to get hot water. It’s a great investment for comfort and savings.
5. Rheem RTG-70XLN-3 High Efficiency Non-Condensing Outdoor Tankless Natural Gas Water Heater
Rating: 9.3/10
Tired of running out of hot water? The Rheem RTG-70XLN-3 is a high-efficiency tankless water heater that provides plenty of hot water for your busy home. It’s designed for outdoor installation and uses natural gas to heat water quickly. This means you can enjoy hot showers, run the dishwasher, and do laundry all at the same time without worry.
What We Like:
- It delivers up to 7.0 gallons of hot water per minute, which is great for homes with 2-3 bathrooms.
- It heats water fast with 160,000 BTUs of power, so you won’t have to wait for hot water, even during busy times.
- The hot-start programming stops those annoying cold water bursts, giving you a more comfortable shower experience.
- It’s built for outdoor use with a tough metal cabinet and can be easily mounted on a wall by a professional.
- Rheem tankless heaters save space and come in different sizes to fit your needs.
What Could Be Improved:
- Requires professional installation for safe and proper setup.
- Outdoor installation means it needs a suitable location away from living spaces.
This Rheem tankless water heater offers a smart and efficient way to get all the hot water your family needs. It’s a great upgrade for any home looking for reliable and on-demand hot water.
Your Guide to Outdoor Tankless Water Heaters
Looking for hot water outside your home? An outdoor tankless water heater is a great choice. It heats water only when you need it. This saves energy and space. Let’s find the right one for you.
Key Features to Look For
When shopping, check these important features:
- Flow Rate (GPM): This tells you how much hot water the heater can deliver at once. More GPM means more hot water for showers or multiple faucets. A typical shower uses about 2.5 GPM. If you have multiple hot water needs at once, you’ll need a higher GPM.
- Temperature Rise: This is how much the heater can raise the water temperature. Colder climates need a higher temperature rise. Check your incoming water temperature and your desired hot water temperature.
- Energy Source: Most outdoor tankless heaters use natural gas or propane. Electric models are also available. Choose what works best for your home’s setup.
- Ignition Type: Some have a pilot light that’s always on. Others use electronic ignition, which saves energy by only lighting when needed. Electronic ignition is more efficient.
- Ventilation: Outdoor models need proper venting. Some come with built-in vents, while others require separate vent kits. Make sure the model you choose is suitable for outdoor installation and has safe venting options.
- Digital Display: A digital display makes it easy to see and adjust the water temperature. This adds convenience.
Important Materials
The materials used affect durability and performance.
- Stainless Steel: Many tankless water heaters use stainless steel for their heat exchangers. This material resists rust and corrosion. It helps the unit last longer.
- Copper: Copper is often used for internal piping. It transfers heat well.
- Durable Exterior Casing: The outside casing should be made of strong, weather-resistant materials. This protects the inner workings from rain, sun, and other elements.
Factors That Improve or Reduce Quality
Certain things make a tankless water heater better or worse.
- Brand Reputation: Well-known brands often use better parts and have stricter quality control. This leads to a more reliable product.
- Warranty: A good warranty shows the manufacturer stands behind their product. Look for at least a few years on parts and a longer one on the heat exchanger.
- Customer Reviews: Read what other users say. They can share real-world experiences. Good reviews often highlight reliability and ease of use. Bad reviews might point to common problems.
- Installation Quality: Proper installation is crucial. A poorly installed unit can have problems. Always use a qualified professional.
- Maintenance: Regular maintenance, like flushing the unit, helps it work well. Neglecting maintenance can reduce its lifespan and efficiency.
User Experience and Use Cases
Outdoor tankless water heaters are versatile.
- Pools and Hot Tubs: Heat your pool or hot tub without using indoor space. Enjoy a warm soak whenever you want.
- Outdoor Showers: Great for rinsing off after swimming, gardening, or exercising.
- Workshops and Garages: Provide hot water for cleaning tools or washing hands.
- RV Parks and Campsites: Offer convenient hot water for campers and RV users.
- Second Homes or Cabins: A good option for properties where you don’t need constant hot water inside.
Using an outdoor tankless heater is simple. You turn on a hot water faucet, and the heater senses the water flow. It then ignites and heats the water as it passes through. Once you turn off the faucet, the heater shuts off. This on-demand heating is very efficient.
Frequently Asked Questions (FAQ)
Q: Are outdoor tankless water heaters safe to use?
A: Yes, when installed correctly by a professional, they are very safe. They are designed to vent exhaust gases outside your home.
Q: How much space does an outdoor tankless water heater take up?
A: They are much smaller than traditional tank water heaters. They can often be mounted on an exterior wall.
Q: Can I use an outdoor tankless water heater in freezing temperatures?
A: Some models are designed for colder climates and have freeze protection. You must ensure the unit is properly winterized if temperatures drop below freezing.
Q: How long do outdoor tankless water heaters last?
A: With proper maintenance, they can last 20 years or more. This is longer than many tank water heaters.
Q: What is the GPM I need?
A: This depends on your needs. For one shower, 2.5 GPM might be enough. For multiple uses, consider 5 GPM or higher.
Q: What kind of maintenance is required?
A: You should flush the unit annually to remove mineral buildup. Check the vents regularly to ensure they are clear.
Q: Can I install it myself?
A: It is strongly recommended to have a professional plumber and gas technician install your outdoor tankless water heater. Incorrect installation can be dangerous and void your warranty.
Q: How much do they cost?
A: Prices vary based on brand, features, and GPM. Expect to pay several hundred to over a thousand dollars for the unit itself, plus installation costs.
Q: Will it work in a power outage?
A: Most gas-powered tankless water heaters need electricity for the igniter and controls. Some older or simpler models might have battery backup or a standing pilot light, but most modern units will not work without power.
Q: How do I choose between natural gas and propane?
A: If you have a natural gas line to your home, that is usually the more cost-effective option. If not, propane is a viable alternative, but you will need a propane tank and regular refills.
In conclusion, every product has unique features and benefits. We hope this review helps you decide if it meets your needs. An informed choice ensures the best experience.
If you have any questions or feedback, please share them in the comments. Your input helps everyone. Thank you for reading.
Hi, I’m Robert Contreras, a passionate archery instructor based in the USA. With years of experience under my belt, I’ve dedicated my life to mastering the art of archery and sharing its intricacies with enthusiasts of all levels. Through my website, 10Bows.com, I invite you to explore a treasure trove of tips, techniques, and personal insights that reflect my journey in the world of archery. Whether you’re picking up a bow for the first time or refining your skills, I’m here to help guide you toward precision, focus, and a deeper appreciation for this timeless sport.




