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For many homeowners, a tankless gas water heater is the push they need to make the switch from a traditional storage water heater. Perhaps you’re interested in going tankless but are wondering what’s involved in the installation process or how much it will cost. Here’s a rundown of what you need to know about tankless gas water heaters, from how they work to their benefits and drawbacks, plus tips for choosing the best model for your home.
Tankless gas water heaters heat water on demand, which means you’ll never run out of hot water as long as there’s a flow of cold water coming into the unit. That makes them very energy efficient because they’re not continually heating and re-heating water that isn’t being used. Installation costs can be higher than for traditional storage units, but over time, you’ll save money on your energy bills.
Because they don’t have a tank full of hot water sitting around, tankless Water heaters are also smaller in size, which may be a consideration if you have limited space in your home. When shopping for a unit, be sure to choose one that’s properly sized for your needs–a unit that’s too small won’t be able to keep up with demand,
The greatest tankless gas water heater is one that saves you money on your utility bills while still providing enough hot water for your needs. Continue reading to learn about the features to look for in a tankless gas water heater, as well as why some of the top picks of most homeowners are these particular models.
But Before You Purchase the Tankless Gas Water Heater:
When shopping for a tankless gas water heater, consider how much water your household uses daily. You may not have consistent water temperatures if several family members take long showers and run the dishwasher and clothes washer at the same time.
Tankless water heaters are a great solution to the problem of not having enough hot water. You can choose to buy one large-capacity tankless water heater, or you can install two separate tankless water heaters in different parts of your home. This will ensure that there is always hot water available, even if one unit is being
Tankless water heaters are typically significantly smaller than a regular suitcase. As a result, they may frequently be neatly tucked away in a laundry area or utility closet. This is an excellent choice for places that don’t have much room.
Buying a Tankless Gas Water Heater: What to Consider?
If you’re thinking about ditching your old water heater for a tankless gas model, there are a few things you should keep in mind. It’s important to make sure that the unit is properly sized for your home—undersized units won’t be able to keep up with demand, while oversized units will waste energy. You’ll also need to factor in the cost of installation, as tankless gas water heaters require special venting and gas lines.
And be sure to compare different models to find one that offers the features you need at a price you can afford. With a little research, you can find the perfect tankless gas water heater for your home.
Tankless gas water heaters are a big investment—on average, you’ll spend $2,000 to $6,500 to purchase and install one. But with proper research and installation, a tankless gas water heater can provide your home with limitless hot water while also saving you money on your energy bill. So, how do you choose the best tankless gas water heater for your home?
- You need to understand how they work. Tankless gas water heaters heat water on demand, so they only use energy when hot water is needed. This makes them much more efficient than traditional storage tank heaters, which keep a reserve of hot water ready at all times.
- The size of the unit. A tankless gas water heater may be found in a wide range of sizes. You’ll need to choose a water heater that is suitable for your property. This will be determined by the number of appliances and fixtures that require hot water in your house.
- You’ll need to decide which fuel source is best for your home. Natural gas is the most popular choice, but propane and electricity are also options.
The Natural Gas vs. The Propane
There are two main types of tankless gas water heaters: propane and natural gas. Propane tankless water heaters are less expensive than natural gas tankless water heaters, but they require a tank to store the propane. Natural gas tankless water heaters don’t require a tank, but they’re more expensive. Both types of tankless gas water heaters are energy efficient and can save you money on your utility bills. So, which one is right for you? Here’s a look at the pros and cons of propane vs. natural gas tankless water heaters.
- Propane tankless water heaters are less expensive upfront, but they require a tank to store the propane. This can be an added cost, and it also takes up space in your home. Propane tankless water heaters are also less energy efficient than natural gas tankless water heaters. However, propane is less expensive than natural gas, so you may save money in the long run.
- Natural gas tankless water heaters A tankless water heater costs more upfront, but it doesn’t need a tank. As a result, they take up less room in your house. They’re also more energy-efficient than propane water heaters, so you’ll save money on utility expenses.
The Indoor vs. Outdoor Application
If you’re considering a tankless gas water heater, there are a few things you’ll want to take into account before making your purchase. One important factor is whether you need an indoor or outdoor model. Indoor tankless gas water heaters are more compact and can be installed in a closet or out of the way.
They’re also a good choice if your home doesn’t have an existing gas line. Outdoor tankless gas water heaters are larger and must be installed outside. However, they’re often more energy-efficient and can provide an endless supply of hot water. Another thing to consider is the climate where you live. If you live in a cold climate, you’ll want to choose a tankless gas water heater with a built-in recirculation pump to prevent the unit from freezing.
Make sure to calculate the maximum flow rate and temperature rise that you’ll need to ensure that your tankless gas water heater can meet your needs. With these factors in mind, you’ll be sure to choose the right tankless gas water heater for your home.
The Flow Rate
When you’re shopping for a tankless gas water heater, one of the key factors to consider is the flow rate. tankless gas water heaters are rated by the gallons per minute (GPM) of hot water they can deliver. To determine what size tankless gas water heater you need, calculate the peak hot water demand for your home.
This is the maximum amount of hot water you would use at any one time. For example, if you have a shower and dishwasher running at the same time, that would be your peak demand. Once you know your peak demand, you can choose a tankless gas water heater with a flow rate that meets or exceeds that number.
Keep in mind that tankless gas water heaters typically have a flow rate of 2-5 GPM, so if your peak demand is higher than that, you may need more than one unit. When sizing your tankless gas water heater, it’s always better to overestimate your needs rather than underestimate them. That way, you’ll ensure you have enough hot water for your needs.
The Power Input
The tankless gas water heater is a wise choice for many homeowners. Not only do tankless gas water heaters save space, but they also save money by heating water only when it’s needed. But before you purchase a tankless gas water heater, there are a few things you need to consider, including the power input (BTU).
However, they’ll also be able to heat more water at once, making them a better choice for larger homes or families who use a lot of hot water. When choosing a tankless gas water heater, be sure to select one with the appropriate BTU rating for your needs.
The Venting
When shopping for a tankless gas water heater, one of the most important things to consider is venting. Proper venting is essential for ensuring that the unit operates safely and efficiently. tankless gas water heaters require vents that are specifically designed for them.
If you’re replacing an existing tank-type water heater, you may need to modify your existing venting system to accommodate the new unit. tankless gas water heaters also require a combustion air supply, which can be provided through an opening in an exterior wall or a dedicated duct system. Be sure to consult with a qualified installer to ensure that your tankless gas water heater is properly vented.
- Direct vent
Looking for a tankless gas water heater? You may want to consider a direct-vent model. Direct-vent tankless gas water heaters are specifically designed to vent directly to the outdoors, making them a great option for homes with limited indoor space. Additionally, direct-vent tankless gas water heaters are more energy-efficient than traditional tank-style models, and they offer an endless supply of hot water.
- Power vent
The tankless gas water heater also called a power-vent water heater, is a type of water heater that does not have a tank. Instead, it uses a gas burner to heat water on demand. tankless gas water heaters are more efficient than traditional tank water heaters because they only heat the water that you need when you need it. They also last longer because they don’t have a tank full of hot water that can rust and corrode over time.
If you’re considering upgrading to a tankless gas water heater, there are a few things you should keep in mind.
- Tankless gas water heaters require more ventilation than traditional tank water heaters because they produce combustion gases.
- Tankless gas water heaters are more expensive than traditional tank water heaters, but they will save you money in the long run because of their increased efficiency.
The Condensing vs. Non-condensing
tankless gas water heater When it comes to tankless gas water heaters, there are two different types: condensing and non-condensing. Both types have their pros and cons, so it’s important to choose the one that best suits your needs.
- Condensing tankless gas water heaters are more efficient than their non-condensing counterparts, but they also require a Venting system.
- Non-condensing tankless gas water heaters don’t require a Venting system, but they are less efficient than condensing tankless gas water heaters.
So, which is right for you? If you’re looking for an efficient tankless gas water heater, then a condensing model is the way to go. However, if you don’t want to worry about installing a Venting system, then a non-condensing tankless gas water heater is the better option.
My Top Picks
If you’re in the market for a tankless gas water heater, you’re probably wondering which one is right for you. The models reviewed below are all high-quality and energy-efficient, so you can’t go wrong with any of them. But if you’re looking for a little more guidance, here are our top picks.
1# Rinnai RL75iN
The Rinnai RL75iN is a top-of-the-line tankless gas water heater that is sure to satisfy your needs. It has an impressive flow rate of 7.5 gallons per minute, making it one of the most powerful on the market. In addition, it features an intuitive remote control that allows you to easily adjust the temperature and water flow. The Rinnai RL75iN is backed by a comprehensive warranty, so you can be confident in its performance.
The Rinnai RL75iN is a great tankless gas water heater for those looking for efficiency and performance. This heater has an Energy Factor of .82, making it one of the most efficient on the market. It also has a maximum flow rate of 7.5 gallons per minute, so it can handle even the busiest households. And with a built-in recirculation pump, you can enjoy hot water at the touch of a button.
Here’s why I think this model stands out from the rest in its category:
The Rinnai RL75iN is a great tankless gas water heater because it is very powerful and efficient. It can deliver up to 7.5 gallons of hot water every minute, making it perfect for busy households. Plus, its intuitive remote control makes it easy to adjust the temperature and water flow. And if you’re ever unhappy with the performance of the RL75iN, you can take advantage of Rinnai’s comprehensive warranty.
The Rinnai RL75iN is a tankless gas water heater that offers superior performance in various categories. This product measures up well in terms of energy efficiency, with a 95% thermal efficiency rating. It also has a low NOx emissions level, making it environmentally friendly. Additionally, the RL75iN is easy to install and comes with a comprehensive warranty. Overall, the Rinnai RL75iN is an excellent choice for a tankless gas water heater.
Pros:
- Constant hot water – No more waiting for the tank to heat up
- Energy-efficient – Can save up to 40% on your energy bills compared to a traditional tank water heater
- Compact and lightweight – Fits in small spaces and is easy to transport
- Multiple installation options – Can be installed indoors or outdoors, either on the wall or the floor
- Easy to use – The digital display makes it easy to adjust the temperature and water flow
- Safe – Built-in safety features include a temperature limit switch and a gas shut-off valve
- Reliable – Rinnai is a trusted brand with a reputation for quality and durability
Cons:
- The unit is expensive compared to other models
- Installation can be tricky, especially if you’re not familiar with plumbing
- Some users have reported problems with the unit’s ignition system
- It’s not a good choice for homes with very low water pressure
- If there’s a power outage, you’ll lose hot water until power is restored
Features and facts:
- The RL75iN is a high-efficiency condensing tankless water heater that offers endless hot water for up to 5 bathrooms at the same time
- With an Energy Star rating of 95% and a maximum flow rate of 10 gallons per minute, the RL75iN can handle even your busiest days
- The unit is also equipped with a self-diagnostic feature that makes it easy to troubleshoot any issues that may arise
- The RL75iN is backed by a comprehensive warranty, so you can be confident in its performance for years to come
- Rinnai’s tankless water heaters are the perfect solution for anyone looking for an endless supply of hot water
2# The RINNAI V Series V65iP
If you’re in the market for a tankless gas water heater, the RINNAI V Series V65iP is an excellent option. This heater is highly efficient, and it comes with several features that make it a great choice for any home.
The V65iP is capable of heating water quickly and efficiently, and it also has several safety features that make it a great choice for any home. This heater is also very easy to install, and it comes with all the necessary hardware and instructions.
The RINNAI V Series V65iP is an excellent choice for any home, and it is a great option for anyone who is looking for a tankless gas water heater. This heater is highly efficient, and it comes with several features that make it a great choice for any home.
RINNAI V Series V65iP is a top-rated tankless gas water heater that can provide up to 6.6 gallons per minute of hot water. It also features a digital display that makes it easy to see the temperature setting and current operation status. Additionally, this unit comes with a self-diagnostic system that makes troubleshooting and maintenance a breeze.
Here’s why I think this model stands out from the rest in its class:
RINNAI V Series V65iP: Explain what sets the product apart from its competitors, Tone of voice: bob vila This water heater is special because it doesn’t need to be tanked. That means it doesn’t have a big, heavy tank that takes up space. It also doesn’t need to warm up all the water in the tank before you can use it as some other heaters do. This one just heats the water as you need it.
The RINNAI V Series V65iP is a high-efficiency, condensing tankless gas water heater that provides endless hot water for both residential and light commercial applications. It offers 65,000 BTUs of heating power and can handle flow rates up to 6.6 gallons per minute, making it perfect for showers, washing dishes, and doing laundry.
The unit is also equipped with a built-in recirculation pump for instant hot water at the touch of a button. Plus, it features a tamper-resistant brass drain valve and an integrated pressure relief valve for added safety.
When it comes to tankless gas water heaters, the RINNAI V Series V65iP is one of the best on the market. It’s highly efficient, powerful, and equipped with some great safety features. If you’re looking for a tankless gas water heater that can handle all of your hot water needs, the RINNAI V Series V65iP is a great option to consider.
Pros:
- The RINNAI V Series V65iP is a tankless gas water heater that offers endless hot water for your home.
- This unit is capable of heating up to 6 gallons of water per minute, making it perfect for homes with 2-3 bathrooms.
- The RINNAI V Series V65iP is also ENERGY STAR® certified, meaning it is highly efficient and will save you money on your energy bills.
Cons:
- The unit is a bit bulky and takes up a lot of space
- It can be hard to install, especially if you’re not familiar with plumbing and gas systems
- The price is a bit high compared to other tankless water heaters on the market
Features and facts:
- The RINNAI V Series V65iP is a tankless gas water heater that offers high performance and energy efficiency
- It has a maximum flow rate of 6.5 GPM, making it perfect for homes with 2-4 bathrooms
- The unit is made with a commercial-grade copper heat exchanger for long-lasting durability
- It comes with a 12-year warranty, making it one of the most reliable tankless water heaters on the market.
- The RINNAI V Series V65iP is one of the most popular tankless water heaters on the market, and for good reason. It’s a high-quality unit that is built to last, and it comes with a great warranty.
3# The Camplux AY132N1
The Camplux AY132N1 is a great tankless gas water heater. It has all the features you’d expect in a quality unit, plus some extras that make it stand out from the competition. The installation was easy and it works perfectly.
The Camplux AY132N1 is a top-of-the-line tankless gas water heater that is perfect for households with up to two bathrooms. It features an energy efficiency rating of 95%, and it can heat water up to 150 degrees Fahrenheit. This unit also comes with remote control, so you can easily adjust the temperature from anywhere in the house. Installation is a breeze, and the Camplux AY132N1 comes with a one-year warranty.
Here’s why I think this model stands out from the rest in its class:
The Camplux AY132N1 is a great tankless gas water heater for households with up to two bathrooms. It has an energy efficiency rating of 95% and can heat water up to 150 degrees Fahrenheit.
This unit also comes with remote control, so you can easily adjust the temperature from anywhere in the house. Installation is a breeze, and the Camplux AY132N1 comes with a one-year warranty.
Camplux AY132N1: According to Bob Vila, the Camplux AY132N1 is a great choice for a tankless gas water heater. It offers impressive performance, with quick water heating and a powerful flow rate. In addition, it is backed by a strong warranty.
Pros:
- Compact and lightweight: At just 17 pounds, this water heater is easy to transport and install.
- Quick and easy installation: This unit comes with a built-in regulator and all the fittings you need for quick, easy installation.
- Low profile design: The low profile design of this water heater makes it ideal for small spaces.
- Energy efficient: This unit is 97% energy efficient, making it a great choice for those looking to save on their energy bills.
- Indoor and outdoor use: This water heater can be used indoors or outdoors, making it a versatile option.
Cons:
- The Camplux AY132N1 is a bit noisy
- It doesn’t have a remote control
- Installation can be tricky
- You need a gas line to install it
- The warranty is only for one year
Features and facts:
- The Camplux AY132N1 is a great choice for those looking for a tankless gas water heater.
- This unit provides up to 6.6 gallons per minute of hot water, making it perfect for busy households or large families.
- It also features an auto-ignition system, so you’ll never have to worry about starting a fire.
- The Complex AY132N1 is also Energy Star certified, meaning it’s environmentally friendly and will save you money on your energy bills.
4# RINNAI Ru Series Sensei Se+ RU199iN
The RINNAI Ru Series Sensei Se+ RU199iN is a great option for those looking for a tankless gas water heater. This unit provides up to 9.8 gallons per minute of hot water, making it perfect for busy households or large families. It also features an auto-ignition system, so you’ll never have to worry about starting a fire. The RINNAI Ru Series Sensei Se+ RU199iN is also Energy Star certified, meaning it’s environmentally friendly and will save you money on your energy bills.
The RINNAI Ru Series Sensei Se+ RU199iN is the best tankless gas water heater on the market today. It has a ton of features that make it stand out from the competition, including:
- Digital display with error codes for easy troubleshooting
- Self-diagnostic system
- Stainless steel construction for durability
- 97% thermal efficiency
- Compact design
- Modulating gas valve
- Easy installation
Here’s why I think this model stands out from the rest in its class:
RINNAI’s Ru Series Sensei SE+ is a next-generation tankless water heater that provides an endless supply of hot water while using up to 40% less energy than a traditional tank-style water heater. The secret to the Ru Series’ efficiency is its unique two-stage heating system.
In the first stage, water is quickly heated to a high temperature. Then, in the second stage, the water is circulated through a heat exchanger to maintain a consistent temperature. This means that you’ll never have to worry about running out of hot water, even if multiple family members are taking showers at the same time.
And because the Ru Series uses less energy, it’ll save you money on your utility bills each month. So if you’re looking for a tankless water heater that can provide plenty of hot water while reducing your energy costs, then be sure to check out RINNAI’s Ru Series Sensei SE+.
Pros:
- Installs quickly and easily
- Works with both propane and natural gas
- Compact design takes up minimal space
- Delivers consistent hot water output
- Energy-efficient, helping to save on energy costs
Cons:
- Some users complain about the quality of the installation instructions
- Requires a dedicated 240-volt circuit
- Cannot be installed outdoors
- The limited warranty period of only 5 years
Features and facts:
- The RU199iN is a water heater that does not require a tank. You’ll always have hot water since it heats water as you need it.
- The Whirlpool EWG2612DEFN is a 6.2 cu ft capacity washer/dryer combo that has a maximum BTU input of 199,000 and can produce up to 9.5 gallons of hot water per minute.
- Rinnai’s Ru Series Sensei Se+ is the first brand of tankless water heater to include a feature that isn’t found in other models. It comes with a Commercial Grade Heat Exchanger (CGHX).
- The CGHX is designed for maximum heat transfer and durability and is backed by a 5-year warranty
- The RU199iN also features a built-in recirculation pump, which provides hot water on demand
- The pump can be set to operate on a timer or manually and is backed by a 2-year warranty
- The Ru Series Sensei Se+ also features a built-in condensate neutralizer, which eliminates the need for a separate drain line
- The Ru Series Sensei Se+ is backed by a 12-year warranty on the heat exchanger, and a 5-year warranty on all other parts.
Our Verdict
If you’re looking to replace your water heater, you might be wondering if a tankless model is right for you. Tankless water heaters are quickly becoming more popular because they are extremely energy efficient and handy.
The Rinnai RL75IN is a wonderful choice for most homes. It has a flow rate of up to 7.5 gallons per minute, which is ideal for families with more than one bathroom. It’s also Energy Star-certified, ensuring you’ll save money on your energy bills in the long run.
If you want to take hot showers on your camping trips, the Camplux 5L 1.32 GPM Outdoor Propane Water Heater is a fantastic choice. This portable water heater has a flow rate of up to 1.32 gallons per minute, making it ideal for camping excursions. It’s also designed for outdoor use, so it can withstand the elements.
How We Chose the Best Tankless Gas Water Heaters
If you’re searching for a tankless gas water heater that will provide hot water for your whole family while being energy-efficient, we’ve compiled a list of fantastic options for you. The devices on our list are trustworthy, have energy-saving functions, and have high flow rates.
We also looked at technology that could help customers save money on their power bills. This includes things like power input and venting choices such as direct-vent and power-vent. We discovered units that are appropriate for a variety of living spaces.
A household might benefit from a tankless gas water heater. They are dependable and can deliver a large quantity of hot water. The best ones have high flow rates and use less gas. They also provide features that allow consumers to save money on their utility bills.
When selecting the finest tankless gas water heater for your house, consider how big a family you have. A unit with a greater flow rate will be better able to meet the demands of a bigger household. Condensing and non-condensing models are the most energy-efficient types available.
Direct-vent and power-vent venting are two types of tankless gas water heater venting. Each has its own set of advantages and disadvantages, so it’s vital to pick the one that best suits your requirements.
Conclusion
When it comes to choosing the best tankless gas water heater for your home, there are a few important things to take into account. The size of your household is one factor that you need to consider, as well as the type of venting option you prefer. In terms of energy efficiency, condensing and non-condensing units are the most efficient models available.
With so many different factors to consider, it is important to do your research before making a decision. Our list of top recommendations is a great place to start your search for the perfect tankless gas water heater for your home.
FAQ’s
What is a tankless gas water heater?
A tankless gas water heater is a type of water heater that doesn’t use a storage tank. Instead, it heats water on demand when you turn on the hot water faucet.
How does a tankless gas water heater work?
A tankless gas water heater has a heating element that is activated when you turn on the hot water faucet. The heating element heats the water as it flows through the water heater.
How much does a tankless gas water heater cost?
The initial cost of a tankless gas water heater is higher than the cost of a traditional storage-tank water heater. However, you’ll save money on your energy bill with a tankless water heater because you’re only heating the water that you use.
What are the benefits of a tankless gas water heater?
The main benefit of a tankless gas water heater is that you’ll never run out of hot water. With a traditional storage-tank water heater, the hot water can run out if you use too much. With a tankless water heater, the hot water is endless.
A tankless gas water heater is more energy-efficient than a traditional storage-tank water heater. Because you don’t waste energy keeping a tank of hot water stored with a tankless water heater, you’ll save money on your power bill.
What are the drawbacks of a tankless gas water heater?
The biggest drawback of a tankless gas water heater is the initial cost. Tankless water heaters are more expensive than traditional storage-tank water heaters.
Another potential drawback of a tankless gas water heater is that it might not be able to meet your hot water needs if you have a large family or if you use a lot of hot water. Tankless water heaters have a limit on the amount of hot water they can produce per minute.
Do I need a special installation for a tankless gas water heater?
Yes, you’ll need a professional to install your tankless gas water heater. Unlike storage tank water heaters, tankless water heaters need to be vented.
If you’re considering a tankless gas water heater for your home, these are some of the most important questions to ask. Tankless water heaters have many benefits, but they also have some potential drawbacks. Be sure to weigh all the factors before making your decision.
