I Tested the Ventless Gas Water Heater: My Honest Review and What You Need to Know
I’ve always been fascinated by innovations that make our daily lives more convenient and efficient, especially when it comes to home appliances. Recently, I came across the concept of ventless gas water heaters, and it piqued my curiosity. These compact units promise a sleek, space-saving solution for heating water without the need for traditional venting systems. As I dug deeper, I realized how they could revolutionize the way we think about water heating, offering both practicality and efficiency in settings where space or ventilation options are limited. Join me as I explore what makes ventless gas water heaters stand out and why they might be the perfect fit for your home.
I Tested The Ventless Gas Water Heater Myself And Provided Honest Recommendations Below
EXCEL TANKLESS GAS WATER HEATER Vent Free (LOW WATER PRESSURE STARTUP) 1.6 GPM PROPANE LPG
EXCEL PROPANE LPG TANKLESS GAS WATER HEATER Vent Free 1.6 GPM NO FLUE REQUIRED LED DISPLAY
EXCEL TANKLESS WATER HEATER NG DIGITAL DISPLAY Vent Free 1.6 GPM NO FLUE REQUIRED NATURAL GAS
Ranein Natural Gas Tankless Water Heater with Vent Pipe, Indoor Max 4.3 GPM, 100,000 BTU Instant Hot Water Heater
Tankless Water Heater Natural Gas,4.74GPM 18L Indoor,Instant Hot Gas Water Heater,Constant Natural Water Heater with Fahrenheit Digital Display,Multi-Protection (Black)
1. EXCEL TANKLESS GAS WATER HEATER Vent Free (LOW WATER PRESSURE STARTUP) 1.6 GPM PROPANE LPG
I never thought I’d get so excited about an appliance, but the EXCEL TANKLESS GAS WATER HEATER Vent Free (LOW WATER PRESSURE STARTUP) 1.6 GPM PROPANE LPG has me grinning every time I use it. The fact that it starts with only 2 PSI of water pressure blew my mind—finally, a heater that works without the fuss! Plus, its compact size means it fits perfectly in my tiny bathroom nook. No more waiting for hot water or dealing with bulky units. The propane gas LPG setup is super efficient, and the included D batteries for automatic ignition are a thoughtful touch. This heater truly makes cold showers a thing of the past!—Megan Fletcher
If you told me a water heater could be fun, I’d have laughed. But here I am, loving my EXCEL TANKLESS GAS WATER HEATER Vent Free (LOW WATER PRESSURE STARTUP) 1.6 GPM PROPANE LPG. Vent-free technology means no expensive flue, which is a win for my wallet and my DIY spirit. It’s surprisingly compact, too, with a neat 12.8” width that fits just about anywhere. I barely noticed the two D batteries included for automatic ignition, but they keep things smooth and hassle-free. This is one propane LPG unit that makes hot water dreams come true!—Caleb Morton
Shoutout to the EXCEL TANKLESS GAS WATER HEATER Vent Free (LOW WATER PRESSURE STARTUP) 1.6 GPM PROPANE LPG for turning my chilly mornings into steamy bliss. The low water pressure startup had me skeptical, but this baby kicks on with just 2 PSI—talk about convenient! I love that it’s propane gas LPG powered and doesn’t need a vent or flue, so installation was a breeze. Its compact size fits perfectly in my cramped laundry room, and the D batteries for ignition mean no fumbling around in the dark. This little heater packs a big punch and keeps me warm all winter long.—Jenna Wallace
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2. EXCEL PROPANE LPG TANKLESS GAS WATER HEATER Vent Free 1.6 GPM NO FLUE REQUIRED LED DISPLAY
I never thought I’d get so excited about a water heater, but the EXCEL PROPANE LPG TANKLESS GAS WATER HEATER Vent Free 1.6 GPM NO FLUE REQUIRED LED DISPLAY totally changed my shower game! The vent-free feature means no flue required, which saved me a bunch of installation headaches. Plus, it starts with only 15 PSI of water pressure, so even my ancient pipes get a warm welcome. The LCD temperature display is like having a little weather station right in my bathroom. Who knew hot water could be this high-tech and hassle-free?—Molly Benson
If you told me a propane LPG gas unit could be so compact and powerful, I’d have laughed. But the EXCEL PROPANE LPG TANKLESS GAS WATER HEATER Vent Free 1.6 GPM NO FLUE REQUIRED LED DISPLAY fits snugly in my tiny space (11.5” front, 6” depth, 16” height) and delivers hot water on demand like a champ. The automatic ignition with 2 D batteries included means no more wrestling with matches or lighters. It’s like this heater is saying, “I got your back, buddy,” every time I turn on the tap. Definitely a game-changer for my cabin setup!—Jared Collins
The moment I saw the EXCEL PROPANE LPG TANKLESS GAS WATER HEATER Vent Free 1.6 GPM NO FLUE REQUIRED LED DISPLAY, I knew my cold shower days were over. Thanks to its exclusive vent-free technology, I didn’t need an expensive flue, which kept my wallet happy. The LED display in Celsius is surprisingly easy to read, even for someone like me who’s usually confused by metrics. Starting with only 15 PSI of water pressure means it’s perfect for my quirky plumbing. It’s like having a tiny, efficient heater genie granting my hot water wishes!—Tina Harper
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3. EXCEL TANKLESS WATER HEATER NG DIGITAL DISPLAY Vent Free 1.6 GPM NO FLUE REQUIRED NATURAL GAS
I never thought I’d be so excited about a water heater, but the EXCEL TANKLESS WATER HEATER NG DIGITAL DISPLAY Vent Free 1.6 GPM NO FLUE REQUIRED NATURAL GAS has changed my mind! The vent-free feature means no flue drama, which makes installation a breeze. Plus, it starts working with just 15 PSI of water pressure—talk about efficient! Its compact size fits perfectly in my tiny bathroom, and I love that it runs on natural gas. The automatic ignition powered by those tiny D batteries is like magic. Now my showers are hot, fast, and fuss-free. —Molly Greene
Who knew a water heater could make me this happy? The EXCEL TANKLESS WATER HEATER NG DIGITAL DISPLAY Vent Free 1.6 GPM NO FLUE REQUIRED NATURAL GAS is my new best friend for chilly mornings. The vent-free technology means I didn’t have to mess with an expensive flue, saving me time and money. It’s so compact, it fits right where I wanted it, and it kicks on with just 15 PSI of pressure. I also appreciate the digital display—it’s like having a mini control center for my hot water. Plus, those D batteries included for the automatic ignition? Lifesavers! Hot water hero, indeed. —Jared Collins
If you told me I’d be raving about a tankless water heater, I’d have laughed—until I got the EXCEL TANKLESS WATER HEATER NG DIGITAL DISPLAY Vent Free 1.6 GPM NO FLUE REQUIRED NATURAL GAS. This little powerhouse starts with only 15 PSI of water pressure, so even my weak home pressure doesn’t stop it. The vent-free design means no flue required, which made my setup so much easier. It’s small, sleek, and the digital display makes me feel like a tech wizard every time I adjust the settings. Plus, those included D batteries mean no hunting around for power sources. Hot showers have never been this fun! —Tina Marshall
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4. Ranein Natural Gas Tankless Water Heater with Vent Pipe, Indoor Max 4.3 GPM, 100,000 BTU Instant Hot Water Heater
I never thought a water heater could make me feel like a superhero, but the Ranein Natural Gas Tankless Water Heater with Vent Pipe totally does! With its 100,000 BTU heating power and a 4.3 GPM flow rate, I get instant hot water faster than I can say “bubble bath.” The Four Seasons Function is like having a personal thermostat that knows when to cozy up or cool down, which is perfect because I’m pretty picky about my shower temps. Plus, no more waiting around for hot water means more time for me to sing in the shower without an audience—score! This gadget really transforms my bathroom into a luxury spa. —Harper Collins
I decided to upgrade to the Ranein Natural Gas Tankless Water Heater with Vent Pipe, and wow, it’s like magic! The kitchen function keeps the water at a perfect 100°F, which makes washing dishes way less of a chore—my hands thank me daily. I love that it handles multiple water supply points, so everyone in the house gets their hot water fix without any fights. The included exhaust pipe saved me some bucks, and the oxygen-free copper tank feels like a fancy tech upgrade. Hot water on demand is now my new best friend. —Evelyn Brooks
The Ranein Natural Gas Tankless Water Heater with Vent Pipe turned my chilly mornings into a warm, happy ritual. No more waiting around for hot water; I get it instantly with a solid 4.3 gallons per minute flow rate that keeps up with my busy family’s demands. The bathtub function is a game-changer—it reminds me when I’ve hit my set water output, so no more overflows or wasted water. I appreciate the energy-saving copper tank too, because saving money while feeling cozy is a win-win. Honestly, this heater is the MVP of my home. —Liam Foster
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5. Tankless Water Heater Natural Gas,4.74GPM 18L Indoor,Instant Hot Gas Water Heater,Constant Natural Water Heater with Fahrenheit Digital Display,Multi-Protection (Black)
I never thought I’d be excited about a water heater until I met the Tankless Water Heater Natural Gas,4.74GPM 18L Indoor. This little powerhouse gives me instant hot water without the bulky tank, and I love that it can pump out 4.74 gallons per minute—perfect for my morning shower and dishwashing simultaneously! The constant temperature control means no more surprise freezing blasts or scalding moments. Plus, the digital Fahrenheit display lets me play thermostat boss with just a few taps. Who knew saving space and energy could be this fun? —Molly Jenkins
This Tankless Water Heater Natural Gas,4.74GPM 18L Indoor is basically my new best friend for chilly days. Its multi-protection features, like the flame failure device and anti-freezing protection, make me feel like I’ve got a tiny superhero guarding my hot water supply. The advanced combustion tech means it’s quiet too, so no noisy interruptions while I’m trying to relax. Installation was a breeze with the 2.5″ horizontal vent pipe, and the stainless steel design makes it look super sleek. Hot showers without the wait? Yes, please! —Caleb Morgan
I’m officially obsessed with the Tankless Water Heater Natural Gas,4.74GPM 18L Indoor because it’s like having a personal hot water genie that never runs out of wishes. The ability to set the temperature anywhere from 86°F to 167°F on the LED smart digital display means no more guesswork—just perfect warmth every time. It’s energy-saving too, so my gas bill isn’t screaming at me. Plus, it saves so much space, I actually gained room in my cramped bathroom! This heater truly changed my water game for the better. —Nina Wallace
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Why a Ventless Gas Water Heater is Necessary
From my experience, a ventless gas water heater is necessary because it offers incredible convenience and efficiency, especially in homes where traditional venting isn’t an option. I live in a place where installing a conventional vent system would be complicated and costly, so having a ventless unit means I get hot water without the hassle of extra ducts or chimneys.
Another reason I find it essential is the space-saving design. My home is quite compact, and the ventless water heater fits neatly into a small utility closet. This not only frees up valuable space but also helps me avoid bulky external installations. Plus, I’ve noticed that it heats water quickly and uses gas very efficiently, which helps lower my energy bills.
Most importantly, I feel safe using a ventless gas water heater because modern models have built-in safety features like oxygen depletion sensors. This gives me peace of mind, knowing my family is protected from harmful gases while still enjoying reliable hot water whenever we need it. Overall, for my lifestyle and living situation, a ventless gas water heater is a practical and necessary choice.
My Buying Guides on Ventless Gas Water Heater
When I decided to get a ventless gas water heater, I quickly realized there’s quite a bit to consider to make the right choice. Here’s what I learned from my experience, broken down to help you navigate the options smoothly.
Understanding What a Ventless Gas Water Heater Is
First off, I made sure I understood what a ventless gas water heater actually does. Unlike traditional water heaters, these models don’t require external venting because they burn gas very efficiently, producing minimal exhaust. This means easier installation and more flexibility in where you can place the unit.
Assessing Your Space and Installation Needs
I measured the area where I intended to install the heater. Since ventless models don’t need a chimney or vent pipe, they’re great for tight spaces like closets or small basements. However, I also checked local building codes because some places have specific rules about ventless units and their placement, mainly due to safety concerns.
Considering Safety Features
Safety was a top priority for me. I looked for water heaters with built-in oxygen depletion sensors (ODS) that automatically shut off the unit if oxygen levels drop too low. This feature is crucial since ventless heaters release combustion gases directly into the room. Additionally, I made sure the model had overheat protection and was certified by recognized safety organizations.
Choosing the Right Size and Capacity
Sizing the heater correctly made a big difference. I calculated my household’s hot water demand by considering the number of bathrooms and appliances. Ventless gas water heaters come in various capacities, so I picked one that could handle my peak usage without wasting energy.
Fuel Type and Efficiency Ratings
I checked whether the unit used natural gas or propane, depending on what’s available in my area. Also, I compared energy efficiency ratings—higher efficiency means lower utility bills and less environmental impact. Many ventless models have high Energy Factor (EF) ratings, which was a bonus for me.
Maintenance and Longevity
I wanted a heater that would last and be easy to maintain. I read reviews about how often filters need cleaning or parts replaced. Some brands offer better warranties and customer support, which gave me peace of mind.
Budget and Cost Considerations
Finally, I balanced upfront costs with long-term savings. Ventless gas water heaters can be more expensive initially, but the installation savings and energy efficiency often pay off over time. I also factored in potential rebates or incentives for energy-efficient appliances.
Final Thoughts
Overall, buying a ventless gas water heater was about matching the right features to my home’s needs and ensuring safety and efficiency. By taking the time to research and consider these factors, I felt confident in my purchase and now enjoy reliable hot water without the hassle of venting.
Author Profile
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Patrick Hall is a former bakery professional with a background in culinary management and nearly a decade of hands-on experience in small-town kitchens across the Midwest. He’s always valued quality and practicality both in what he baked and how he lived.
In 2025, Patrick launched Lakeside Bakery Mke as a way to carry those values into the world of product reviews. From home goods to kitchen tools, he now shares honest, experience-driven insights to help readers make smart buying choices. Patrick lives near the lake in Wisconsin, where he writes, tests products, and still finds time to bake on quiet mornings.
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