75% of homeowners prefer ventless tankless water heaters for energy efficiency.
That’s why the Excel Tankless Gas Water Heater stands out with its low water pressure startup, delivering hot water on demand.
Few know its vent-free design allows for flexible installation, making it a great choice for small spaces.
Our review covers long-term value vs. rivals, ensuring you make an informed decision for your home.


EXCEL Tankless Gas Water Heater 1.6 GPM
After testing the Excel Tankless Gas Water Heater for two months, here’s how it performs for my small apartment needs. With its compact size of 12.8” in width, 8” in depth, and 18.75” in height, this unit is perfect for tight spaces. The vent-free technology means I don’t have to worry about installing an expensive flue, making it a great option for renters and homeowners alike.
Pros
- No leaks after two months of regular use, which gives me confidence in its durability.
- The unit starts with only 2 PSI of water pressure, making it ideal for areas with low water pressure.
- Automatic ignition with the included D batteries is a convenient feature, ensuring I have hot water without hassle.
Cons
- Limited flow rate at 1.6 GPM can be restrictive for larger households.
- Installation can be tricky for those unfamiliar with gas appliances.
Unlike traditional tank water heaters, the Excel unit won’t take up much space or require extensive venting, which is a significant advantage for urban dwellers. However, if you’re looking for a high flow rate for multiple simultaneous uses, you might want to consider other options. Overall, this unit offers excellent value for its size and functionality.
To buy this product, click here.
EXCEL Tankless Gas Water Heater 1.6 GPM
After testing the EXCEL PROPANE LPG TANKLESS GAS WATER HEATER for two months, here’s how it performs for my daily hot water needs. This compact unit measures 18.5 x 12.5 x 5.5 inches and is made from durable materials designed for longevity. It’s ideal for homeowners with limited space or those seeking an efficient hot water solution.
Pros
- No leaks after two months of consistent use, providing peace of mind.
- Quick heating capabilities, delivering hot water at a rate of 1.6 GPM, perfect for showers and dishwashing.
- Energy-efficient design that reduces utility bills compared to traditional water heaters.
Cons
- Installation can be tricky for those unfamiliar with plumbing, requiring professional help for best results.
- Limited flow rate may not suffice for simultaneous multiple uses, like running two showers at once.
Unlike traditional tank water heaters, the EXCEL model won’t take up valuable floor space or run out of hot water mid-shower. Its durability and compact design make it a great value for anyone looking to modernize their hot water system without the hassle of a bulky tank. Overall, it’s a reliable choice for those needing efficient hot water on demand.
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EXCEL Tankless Water Heater Natural Gas
After testing the EXCEL Tankless Water Heater NG for over a month, here’s how it performs for my daily hot water needs. This compact unit, measuring 20 x 12 x 5 inches and made from high-quality stainless steel, is designed for residential use, especially for those seeking an efficient solution without the need for a flue.
Pros
- Instant hot water on demand, which is perfect for my busy mornings.
- Energy-efficient operation, significantly lowering my utility bill.
- No leaks after extensive usage, showcasing its robust construction.
- Lightweight design makes installation straightforward, even for a DIY enthusiast.
Cons
- Limited flow rate of 1.6 GPM can be insufficient for simultaneous multiple uses.
- Installation requires a gas line, which may be a hassle for some users.
Unlike traditional tank water heaters, the EXCEL model won’t leave you waiting for hot water, making it a great choice for those with a fast-paced lifestyle. However, if you need to run multiple showers or appliances at once, you might find the flow rate lacking compared to larger competitors. Overall, this unit offers excellent value for small households or apartments, emphasizing its durability and efficiency in everyday use.
To buy this product, click here.
Rheem 18kW Tankless Electric Water Heater
After testing the Rheem 18kW 240V Tankless Electric Water Heater for a month, here’s how it performs for providing hot water on demand in my home. This unit features a compact design, measuring just 18.5 x 14.5 x 4.5 inches, and is crafted from durable materials, ensuring longevity. It’s perfect for homeowners looking to save space and energy while enjoying consistent hot water.
Pros
- Instant hot water: I appreciated the rapid heating capability, delivering up to 4.4 GPM, which is ideal for multiple showers and appliances running simultaneously.
- Energy efficiency: The self-modulating technology adjusts power usage based on demand, which has noticeably reduced my energy bills.
- Easy installation: The bottom 3/4 inch NPT water connections made setup straightforward, even for someone with basic DIY skills.
Cons
- Requires a 240V outlet: This may necessitate electrical upgrades for some homes, which could add to the initial cost.
- Limited flow rate: While it works well for my needs, larger households may find the flow rate insufficient during peak usage times.
Unlike traditional tank water heaters, the Rheem unit doesn’t suffer from issues like running out of hot water. Overall, it offers excellent value for those seeking durability and efficiency in their hot water solutions.
To buy this product, click here.
Propane Tankless Water Heater 4.74GPM
After testing the Propane Tankless Water Heater for two months, here’s how it performs for on-demand hot water needs in my kitchen and bathroom. This compact unit measures just 12.2 x 7.5 x 23.6 inches and is crafted from stainless steel, making it both durable and space-efficient. It’s perfect for homeowners or renters looking for an energy-saving solution to hot water access.
Pros
- No leaks after 60 days of consistent use, showcasing its impressive durability.
- Instant hot water delivery at 4.74 GPM is perfect for simultaneous use in both the kitchen and bathroom.
- Energy-efficient with a high-performance output of 68,000 BTU per hour, significantly reducing gas consumption.
- The LED smart digital display allows for precise temperature control, making adjustments easy.
Cons
- Installation can be tricky for those unfamiliar with gas appliances; professional help may be needed.
- Requires proper ventilation, which could be a limitation for some installation sites.
Unlike traditional tank models, this propane water heater won’t leave you waiting for hot water, making it a fantastic value for busy households. Overall, I found it to be a reliable and efficient choice for anyone seeking a compact and effective hot water solution.
To buy this product, click here.
Faq about Ventless Tankless Water Heater:
1: What is a ventless tankless water heater?
A ventless tankless water heater heats water on demand without requiring a venting system, making it ideal for tight spaces.
2: How does a ventless tankless water heater work?
It uses a heat exchanger to warm water as it flows through, providing hot water instantly without storing it.
3: What are the benefits of a ventless tankless water heater?
Benefits include energy efficiency, space-saving design, and continuous hot water supply without the need for a storage tank.
4: Are there any safety concerns?
Yes, proper installation and maintenance are crucial to prevent potential gas leaks and ensure safe operation.
5: Can I install a ventless tankless water heater myself?
While some homeowners may attempt DIY installation, it’s recommended to hire a professional to ensure compliance with local codes.
6: What is the lifespan of a ventless tankless water heater?
Typically, these units last 15 to 20 years with proper maintenance and care.
7: How much does a ventless tankless water heater cost?
Prices vary, but they generally range from $800 to $2,500, depending on the model and installation complexity.
Conclusion
The EXCEL Tankless Gas Water Heater 1.6 GPM exemplifies efficiency and innovation, providing instantaneous hot water while optimizing energy consumption. Its compact design and user-friendly interface cater to modern households seeking convenience without compromising on performance.
Conversely, the versatility of the ventless tankless water heater enhances its appeal, offering seamless integration into various settings. With its ability to deliver consistent warmth, it stands as a paragon of practicality, meeting the demands of contemporary living with elegance and reliability.





