Loading... 
Experience endless hot water with our range of gas tankless water heaters. Perfect for homes and businesses, these energy-efficient units save space and cut energy costs, providing on-demand heating when you need it most. Enjoy reliability, durability, and comfort with our top-rated selection of tankless gas water heaters.
Free ground shipping on orders over $99*
- Home
- Products
- Plumbing
- Water Heaters
- Tankless Gas Water Heaters
Picture this: you step into the shower, turn on the water, and instantly, hot water flows—no waiting, no delays. That's the magic of tankless gas water heaters. They've completely changed how we experience hot water at home and in business. We don’t need to stand and wait for the water heater to heat the water for us. It’s always there now. These sleek and compact, on-demand gas water heaters provide endless hot water. They are also equipped with benefits like energy savings, cost efficiency, and space-saving designs. Whether you're a homeowner or running a business, switching to a tankless gas system brings convenience, reliability, and long-term benefits. Let’s dive deeper into how tankless gas water heaters work, their advantages, and how to choose the perfect one for your needs.
+ Read MoreUnderstanding Tankless Gas Water Heater?
A tankless gas water heater doesn’t store hot water like traditional units. Instead, it heats the water only when you need it. No more heating and re-heating a large tank of water all day—just instant hot water when you turn on the tap.
These water heaters can run on natural gas or propane, making them versatile and energy efficient. They can be used easily in residential and commercial settings.
How Does a Tankless Gas Water Heater Work?
When you turn on your faucet or start the shower, cold water flows through a pipe into the unit. A powerful gas burner heats the water as it passes through, and voilà— you get instant hot water! Unlike traditional water heaters that constantly heat stored water (even when you don’t need it), tankless units only use energy when you turn on the tap. This efficiency helps in reduced energy bills and a smaller environmental footprint.
The Benefits of Switching to a Tankless Gas Water Heater
- Energy Efficiency
With tankless gas water heaters, you’re saving energy and money with every single use. Traditional systems lose energy because they constantly heat a tank of water (even when you're not using it). This "standby heat loss" is not there in tankless models, as they only use gas when you need hot water. Over time, this can lead to noticeable reductions in your energy consumption.
- Endless Hot Water
One of the biggest advantages is continuous hot water. Forget about rushing through your shower before the hot water runs out. Whether you're washing dishes, doing laundry, or running multiple showers, tankless gas water heaters provide hot water on-demand, as long as you need it.
- Space-Saving Design
Gone are the days of dedicating a large closet or section of your garage to a bulky water heater. Tankless gas water heaters are compact and can be installed in smaller spaces. They’re perfect for homes with limited storage or businesses that want to maximize space. Whether you choose an indoor or outdoor model, installation is flexible and can suit a variety of layouts.
- Cost Savings Over Time
While the upfront cost of a tankless gas water heater may be higher than traditional models, the long-term savings are substantial. The increased energy efficiency can reduce your gas bill significantly, and you won’t have to replace it as often. Most tankless systems have a lifespan of 20 years or more with proper maintenance.
Types of Tankless Gas Water Heaters
- Natural Gas Tankless Water Heater
Natural gas is a cost-effective and highly efficient fuel source for tankless water heaters. Natural gas water heaters heat water quickly, making them ideal for homeowners who need fast and consistent hot water. If your home is already connected to a natural gas line, installation is easy, and you’ll benefit from lower fuel costs.
- Propane Tankless Water Heater
If natural gas isn’t available in your area, propane tankless water heaters are a great alternative. Propane is portable and efficient, offering the same on-demand hot water without the need for a gas line connection. This is especially beneficial for rural homes or off-grid living.
Residential and Commercial Applications
Residential tankless water heaters are designed to meet the daily demands of families, providing reliable hot water for showers, dishwashing, and laundry. They’re available in different sizes, so whether you live alone or have a bustling household, there’s a model that will fit your needs perfectly.
On the other hand, commercial tankless water heaters are built to handle the demands of businesses, such as hotels, restaurants, and apartment complexes. These units provide consistent hot water for large-scale operations, ensuring that businesses run smoothly without worrying about hot water shortages.
Tankless Gas Water Heaters vs. Electric
When comparing tankless gas water heaters with electric models, gas units typically come out on top in terms of efficiency and performance. Gas tankless heaters have faster recovery times, meaning they can heat water quicker and provide higher flow rates. Plus, gas is generally cheaper to use compared to electricity, making gas models more cost-effective in the long run.
Choosing the Right Size Tankless Gas Water Heater
Getting the right size tankless gas water heater is essential. To determine the correct size, you need to calculate the flow rate (how much water you’ll need heated at once, measured in gallons per minute) and temperature rise (the difference between incoming water temperature and your desired output temperature). If you have a large family or run a business, a unit with a higher flow rate will ensure that everyone gets hot water without interruptions.
Maintenance Tips for a Long-Lasting Water Heater
Proper care and maintenance are key to extending the life of your tankless gas water heater. Here are a few tips:
- Descale the system: If you live in a hard water area, descaling the unit every six months to a year helps prevent mineral buildup, which can reduce efficiency.
- Clean the air filter: Regularly cleaning or replacing the air filter keeps the burner running efficiently.
- Annual professional check-ups: Have a technician inspect your unit once a year to check for gas leaks, proper ventilation, and overall performance.
Safety Features to Keep in Mind
Safety is a top priority with tankless gas water heaters. Most models come equipped with advanced safety features, including:
- Automatic shut-off: Protects the unit from overheating.
- Pressure relief valves: Prevents dangerous pressure buildup.
- Venting systems: Ensures that harmful gases like carbon monoxide are safely expelled.
These features ensure peace of mind and keep your home or business safe.
FAQs
- How long does a tankless gas water heater last?
A well-maintained tankless gas water heater can last up to 20 years, much longer than traditional tank-style models. - Is it worth the cost?
Although the upfront investment is higher, the long-term energy savings and continuous hot water make it a cost-effective choice over time. - Can I install it myself?
It’s highly recommended to have a professional handle the installation, as proper venting and gas line connections are crucial for safety and efficiency. - What size do I need?
The size depends on your household’s or business’s hot water demand. A professional can help you calculate the flow rate and temperature rise to ensure you choose the right unit. - Does it require regular maintenance?
Yes, regular maintenance like descaling and air filter cleaning is essential for optimal performance and a longer lifespan.