Imagine this: you’re about to step into a hot shower, but the water is surprisingly cold. Frustrating, right? That’s a common problem with old water heaters. But what if there was a smarter way to get endless hot water exactly when you need it? We’re talking about tankless hot water heaters that run on natural gas.
Choosing a tankless water heater can feel a bit like navigating a maze. There are so many brands and features out there! You want to be sure you pick the one that’s best for your home and your wallet. Will it really save you money on your gas bill? Is it easy to use? These are important questions, and understanding the ins and outs of natural gas models is key to finding the perfect fit.
In this post, we’ll break down everything you need to know. We’ll explore the benefits of natural gas tankless water heaters, like their energy savings and how they provide hot water on demand. You’ll learn what makes them different and how to choose the right one for your family’s needs. Get ready to say goodbye to lukewarm showers and hello to consistent, efficient hot water!
Our Top 5 Tankless Hot Water Heater Natural Gas Recommendations at a Glance
Top 5 Tankless Hot Water Heater Natural Gas Detailed Reviews
1. Tankless Water Heater Natural Gas
Rating: 9.1/10
Say goodbye to cold showers and hello to endless hot water with this Tankless Natural Gas Water Heater! This 4.74 GPM unit delivers instant hot water for your home, saving you space and energy. Its sleek black design and Fahrenheit digital display make it a modern and practical addition to any indoor space.
What We Like:
- Provides instant hot water on demand, perfect for 2-3 simultaneous uses.
- Saves energy and reduces gas consumption with advanced combustion technology.
- Durable stainless steel construction and an oxygen-free copper tank for longevity.
- Easy to adjust temperature from 86°F to 167°F with a clear digital display.
- Compact design saves over 50% of space compared to traditional tank water heaters.
- Includes a 2.5″ horizontal vent pipe for simpler installation.
- Features multiple safety protections like flame failure and overheating protection.
- Operates with as little as 3.6 PSI water pressure.
What Could Be Improved:
- Requires proper ventilation and a smoke exhaust pipe for safe operation.
- Needs draining via the pressure relief valve in cold weather if not in use for a while.
- Applicable only to Natural Gas (LNG).
This tankless water heater offers a convenient and efficient way to get hot water when you need it. It’s a smart choice for homeowners looking to upgrade their water heating system.
2. NEW Rinnai RX199iN Condensing Smart Sense Natural Gas or Propane Tankless Water Heater
Rating: 8.6/10
Say goodbye to cold showers and hello to endless hot water with the NEW Rinnai RX199iN Condensing Smart Sense Tankless Water Heater. This powerhouse is designed to fit your life, whether you need it inside your home or outside. It runs on natural gas or propane, making it super flexible. Plus, it’s about the size of a small suitcase, so it won’t take up much space.
What We Like:
- It works anywhere – indoors or outdoors! You just need a special vent cap for outside installs.
- You’ll never run out of hot water, even if everyone in the house is using it at the same time (up to 7 things!).
- It’s really energy-efficient, saving you money on your bills.
- The design is smart and easy to use, with a special feature to make cleaning simple.
- It can use natural gas or propane, so you choose what works best for you.
What Could Be Improved:
- You need to buy a separate Wi-Fi control module if you want to control it with your phone.
- Professional installation is a must, and you need to find a certified Rinnai pro.
- You need to make sure this is the right size for your home by checking their guides and maps.
This Rinnai tankless water heater offers a smart and efficient way to get all the hot water you need. It’s a great upgrade for any home looking for convenience and savings.
3. Tankless Water Heater Natural Gas
Rating: 9.5/10
Tired of waiting for hot water? This Tankless Water Heater Natural Gas, 4.21 GPM 16L Indoor, Instant Hot Gas Water Heater, with Fahrenheit Digital Display, Multi-Protection (Black) delivers hot water exactly when you need it. It’s designed for natural gas and can heat water quickly, making it great for busy households. Plus, it saves space compared to older, bulky water heaters.
What We Like:
- Provides instant hot water, so no more waiting.
- Efficiently saves energy and reduces gas use.
- The stainless steel and copper design means it’s built to last.
- Easy to adjust the temperature with a clear digital display.
- Compact design saves a lot of space.
- Works with just 3.6PSI of water pressure.
- Includes safety features like overheat and flame failure protection.
What Could Be Improved:
- Requires proper ventilation and a smoke exhaust pipe for safe operation.
- Needs to be drained in very cold weather if not in use for a long time.
- Only works with Natural Gas (LNG).
This tankless water heater is a smart upgrade for your home, offering convenience and efficiency. It’s a solid choice for anyone looking for reliable, on-demand hot water.
4. Rinnai V75IN Tankless Hot Water Heater
Rating: 8.8/10
The Rinnai V75IN Tankless Hot Water Heater is a game-changer for your home’s hot water supply. It provides endless hot water, meaning you’ll never run out again, even during busy mornings. This compact heater fits easily into your home and saves space. It’s also energy-efficient, only heating water when you need it, which can lower your energy bills. Plus, it’s built to last with a strong warranty.
What We Like:
- Enjoy unlimited hot water flow for your entire house.
- It’s energy-efficient, only heating water when you use it.
- The compact design saves valuable space in your home.
- It offers a powerful, constant stream of hot water, up to 7.5 GPM, which can run up to 5 appliances at once.
- The heater has a strong warranty, covering the heat exchanger, labor, and parts.
- An enhanced scale detection system helps prevent long-term damage.
What Could Be Improved:
- Professional installation is highly recommended, which is an extra cost.
The Rinnai V75IN delivers on its promise of continuous hot water and energy savings. It’s a durable and efficient choice for upgrading your home’s water heating system.
5. Natural Gas Tankless Water Heater – ORBEK 100
Rating: 9.0/10
Tired of cold showers or waiting for your water heater to catch up? The ORBEK 100,000 BTU Natural Gas Tankless Water Heater is here to change your hot water game. This CSA-certified, on-demand heater delivers endless hot water, perfect for busy households. Its compact design saves space, and it’s built with safety and efficiency in mind.
What We Like:
- Endless Hot Water: Get up to 4.3 GPM, enough for 2-3 showers at once.
- Super Safe: It has many safety features like protection against dry combustion and overheating.
- Energy Saver: The copper heat exchanger is great at transferring heat and saves energy with its three heating modes.
- Space Saver: Its small size (20.5″H x 13.0″L x 7.0″W) means it fits almost anywhere, saving over half the space of old tank heaters.
- Steady Temperature: Enjoy showers within 1°F of your set temperature, thanks to smart technology that adjusts 20,000 times a second.
- Easy to Read and Use: The LED display lets you easily set your desired temperature from 95°F to 149°F. It even remembers your settings if the power goes out.
- Works in Low Pressure: It can start heating water with as little as 15 PSI, so it works even in homes far from the city. Plus, it runs quietly.
- Easy to Install: Fits standard vents and has a 3/4″ NPT connection.
What Could Be Improved:
- Vents and water valve kit are not included, though they are sold separately.
- Professional installation is recommended for best results and safety.
This ORBEK tankless water heater offers a modern, efficient, and reliable way to get hot water. It’s a smart upgrade for any home seeking convenience and energy savings.
The Ultimate Buying Guide: Your Tankless Hot Water Heater Natural Gas
Why Go Tankless?
Tired of running out of hot water? A tankless hot water heater using natural gas might be your perfect solution. Unlike traditional water heaters with big tanks, these units heat water only when you need it. This means endless hot water for your showers and chores, and lower energy bills too. Let’s dive into what you need to know before you buy.
Key Features to Look For
1. Flow Rate (GPM)
This is how much hot water the heater can provide at once. Think about how many faucets or showers you might use at the same time. For a small home, 5-7 gallons per minute (GPM) might be enough. For a larger family or if you love long showers, aim for 8-10 GPM or more.
2. Temperature Rise
This is the difference between the incoming cold water temperature and the desired hot water temperature. Colder climates need a higher temperature rise. Check the heater’s specs to make sure it can handle your local water temperatures and give you the hot water you want.
3. Energy Factor (EF) or Uniform Energy Factor (UEF)
This tells you how efficient the heater is. A higher EF or UEF means it uses less energy to heat water, saving you money. Look for models with a high rating.
4. Ignition Type
Most tankless heaters use electronic ignition. Some might have a pilot light, but this uses a little energy all the time. Electronic ignition is more efficient.
5. Venting Options
Natural gas tankless heaters need to vent exhaust gases. You’ll usually see options like direct vent or power vent. Direct vent pulls air from outside and vents exhaust outside through a single hole. Power vent uses a fan to push exhaust out through a vent pipe. Make sure the venting works for your home.
Important Materials
The main part of your tankless heater is the heat exchanger. These are often made of copper or stainless steel. Copper heats up fast and is a good conductor. Stainless steel is strong and lasts a long time. Both are good choices, but stainless steel often costs a bit more.
Factors That Improve or Reduce Quality
What Makes a Heater Great:
- High-Quality Heat Exchanger: A well-made heat exchanger heats water efficiently and lasts longer.
- Good Brand Reputation: Stick with known brands that have good reviews and offer solid warranties.
- Smart Controls: Some heaters have digital displays and allow you to set exact temperatures or even connect to your phone.
What Can Lower Quality:
- Low-Quality Materials: Cheaper metals might corrode faster.
- Poor Design: A poorly designed unit might struggle to keep up with demand or be less efficient.
- Lack of Maintenance: Regular flushing and cleaning help your heater work well.
User Experience and Use Cases
Tankless heaters are great for busy families who need hot water on demand. Imagine never fighting over the last bit of hot water for a shower! They are also ideal for homes where people are home at different times, like with teenagers or people working from home.
If you have a small apartment, a smaller unit might be perfect. For larger homes with multiple bathrooms and high hot water needs, you might need a more powerful unit or even two units.
Remember, installation is key. A professional installer will make sure your unit is set up correctly for safety and efficiency.
Frequently Asked Questions (FAQ)
Q: How much does a natural gas tankless water heater cost?
A: The cost can vary a lot. The unit itself might cost between $800 and $2,000. Installation can add another $1,000 to $3,000, depending on your home and if you need new gas lines or venting.
Q: Will a tankless heater save me money on my gas bill?
A: Yes, they are more energy-efficient than traditional tank heaters. You only heat water when you need it, so you don’t waste energy keeping a tank of water hot all day.
Q: How long do tankless water heaters last?
A: With proper maintenance, a tankless heater can last 20 years or more. That’s much longer than a traditional tank heater, which typically lasts 10-15 years.
Q: Do I need special gas lines for a tankless heater?
A: Often, yes. Tankless heaters use more natural gas when they are running than a tank heater. You might need larger gas pipes to make sure the heater gets enough gas to work properly.
Q: What is the main difference between tankless and tank water heaters?
A: Tankless heaters heat water as it flows through them, providing endless hot water. Tank heaters store a set amount of hot water in a tank.
Q: Can I install a tankless heater myself?
A: While some DIYers might try, it’s strongly recommended to have a professional install it. They handle gas lines, venting, and water connections safely.
Q: How do I maintain my tankless water heater?
A: You should flush it at least once a year, especially if you have hard water. This removes mineral buildup and keeps it running efficiently.
Q: What is “scaling” and why is it bad for tankless heaters?
A: Scaling is when minerals from hard water build up inside the heater. This buildup can block water flow and reduce heating efficiency, making the heater work harder and potentially break down.
Q: Can I use a tankless heater for my whole house?
A: Yes, if you choose a unit with a high enough flow rate and temperature rise to meet your home’s needs. For very large homes, you might need a commercial-grade unit or two units.
Q: What happens if the power goes out?
A: Most tankless heaters need electricity to operate their controls and fans. If the power goes out, you won’t have hot water until it’s restored.
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.
My name is Gareth Lewis, and I’m the voice behind CampingGuider.com.. I created this space to share my passion for camping and the great outdoors. With years of experience and countless adventures under my belt, I aim to inspire and guide fellow enthusiasts. Whether you’re a seasoned camper or a curious beginner, my goal is to provide you with practical tips, honest reviews, and insights to help you make the most out of your outdoor escapades. Join me on this journey, and let’s explore the beauty of nature together!