When it comes to choosing a reliable hot water solution, non-condensing tankless water heaters offer efficiency and convenience. You’ll find a range of options that deliver instant hot water without the bulk of traditional tanks. These models can meet the demands of your household while keeping energy costs low. But how do you pick the right one? Let’s explore the top contenders and what features you should consider before making a decision.
EcoSmart ECO 11 Electric Tankless Water Heater
The EcoSmart ECO 11 Electric Tankless Water Heater is a top choice for those seeking an efficient and compact solution for their hot water needs. With a power output of 13KW at 240 volts, it offers endless hot water on demand. Its self-modulating technology guarantees you get consistent temperatures within 1°F of your selected setting. Weighing just 6.5 pounds and measuring 11.5 x 8 x 3.75 inches, it’s perfect for small spaces. Whether you’re in a warmer climate needing two showers or a colder one needing just one, this heater delivers with 99% thermal efficiency, making it a smart choice.
Best For: Those seeking an efficient, space-saving water heater that provides endless hot water for small homes or low-flow applications.
Pros:
- Endless hot water: Provides on-demand hot water without running out.
- Compact design: 90% smaller than traditional tank heaters, making it ideal for limited spaces.
- High energy efficiency: With 99% thermal efficiency, it heats only when needed, saving energy.
Cons:
- Limited flow rate: Maximum flow rate of 3.1 gallons per minute may not suffice for larger households.
- Requires suitable climate: Best for areas with incoming water temperatures of 67°F and above.
- Electrical requirements: High amperage draw of 54 A may necessitate electrical upgrades in some homes.
Rheem 18kW 240V Tankless Electric Water Heater, Gray
If you’re looking for a compact and efficient solution for your hot water needs, the Rheem 18kW 240V Tankless Electric Water Heater is an excellent choice. This sleek gray unit measures just 14.5W x 18.25H inches and weighs under 15 pounds, making it perfect for tight spaces. With a flow rate of up to 4.4 GPM and a maximum temperature of 140°F, you’ll enjoy consistent hot water. Its 99.8% efficiency and self-modulation technology help reduce energy bills by adjusting power based on demand. Plus, the digital thermostatic control guarantees precise temperature management for your comfort and convenience.
Best For: Those seeking an energy-efficient, space-saving hot water solution for small to medium-sized homes or apartments.
Pros:
- 99.8% efficiency reduces energy costs and environmental impact.
- Self-modulation technology adjusts power usage based on hot water demand, enhancing performance.
- Compact design allows for versatile installation options, even in tight spaces.
Cons:
- Requires a 240V electrical supply, which may necessitate professional installation.
- Maximum flow rate of 4.4 GPM may not suffice for larger households with high hot water demands.
- Initial purchase cost can be higher compared to traditional tank water heaters.
Rheem RTG-70DVLP-3 Indoor Tankless Liquid Propane Water Heater
For homeowners seeking a reliable hot water solution, the Rheem RTG-70DVLP-3 Indoor Tankless Liquid Propane Water Heater stands out with its impressive capacity to deliver up to 7.0 gallons per minute. Powered by liquid propane and boasting 160,000 BTUs, it guarantees you get hot water even during peak demand. Thanks to its hot-start programming, you won’t experience cold water bursts, making it perfect for back-to-back showers. With a compact design and easy wall-mounting options, it saves space while meeting your household’s hot water needs efficiently. This unit’s versatility makes it an excellent choice for busy homes.
Best For: Homeowners with significant hot water needs, such as those with 2–3 bathrooms or simultaneous usage for showers and laundry.
Pros:
- High capacity of up to 7.0 GPM, suitable for multiple hot water demands.
- Hot-start programming prevents cold water bursts during use.
- Compact and space-saving design ideal for indoor installation.
Cons:
- Requires professional installation, which may incur additional costs.
- Limited to liquid propane fuel type, restricting options for some homeowners.
- Higher upfront cost compared to traditional tank water heaters.
Rheem RTG-70XLN-3 High Efficiency Outdoor Tankless Water Heater
Looking for a reliable water heater that can handle the demands of a busy household? The Rheem RTG-70XLN-3 High Efficiency Outdoor Tankless Water Heater is your answer. With a flow rate of 7.0 GPM and a powerful 160,000 BTUs, it delivers continuous hot water for up to three bathrooms. Featuring hot-start programming, it prevents cold water bursts during back-to-back uses. Its compact design (13.5W x 20.75H x 9.4D inches) makes it easy to install outdoors. Plus, with features like freeze protection and a digital display, you’ll enjoy safety and efficiency. Rated 4.4 out of 5 stars, it’s a dependable choice!
Best For: Families with 2–3 bathrooms seeking a reliable and efficient hot water solution.
Pros:
- High flow rate of 7.0 GPM provides continuous hot water for multiple demands.
- Hot-start programming prevents cold water bursts during consecutive uses.
- Compact and outdoor installation-friendly design saves space.
Cons:
- Requires natural gas connection, which may not be available in all areas.
- Outdoor installation may expose the unit to weather conditions.
- Limited to a maximum temperature of 140°F, which may not meet all users’ preferences.
Rinnai RE140iP Non-Condensing Propane Tankless Water Heater
The Rinnai RE140iP Non-Condensing Propane Tankless Water Heater stands out as an ideal choice for homeowners seeking efficient hot water solutions without the bulk of traditional tank systems. With a powerful flow rate of up to 5.3 GPM, it easily supports multiple fixtures simultaneously. Its compact design, similar to a small suitcase, optimizes your space while its smart heating technology conserves energy. Featuring a maximum temperature of 140°F, it guarantees hot water on-demand. Plus, you’ll benefit from a robust 15-year warranty on the heat exchanger, making it a reliable investment for your home’s needs.
Best For: Homeowners looking for an efficient, space-saving hot water solution that can support multiple fixtures simultaneously.
Pros:
- Compact design optimizes space in your home.
- High flow rate of up to 5.3 GPM supports multiple simultaneous uses.
- Energy-efficient operation with on-demand heating, reducing energy waste.
Cons:
- Professional installation is recommended, which may incur additional costs.
- WiFi control module not included, requiring a separate purchase for smart features.
- Limited maximum temperature of 140°F may not meet the needs of all users.
Titan Electric Tankless Water Heater
With its impressive 99.5% efficiency rating, the Titan Electric Tankless Water Heater is an ideal choice for homeowners seeking a reliable, energy-saving solution for on-demand hot water. This model (N-120) operates at 220 V, boasting a powerful 11,800 watts and a maximum of 54 amps. Its dual heating chambers guarantee consistent hot water, while the compact, wall-mounted design (9.6W x 12H x 2.75D inches) makes it perfect for any indoor space. Customers rate it 4.5 out of 5 stars, highlighting its efficiency and long warranties. Enjoy instant hot water without the hassle of a bulky tank!
Best For: Homeowners looking for a compact, energy-efficient solution for on-demand hot water without the need for a bulky tank.
Pros:
- High efficiency rating of 99.5%, helping to save on energy costs.
- Compact and wall-mounted design suitable for various indoor spaces.
- Dual heating chambers ensure consistent supply of hot water.
Cons:
- Requires a 220 V electrical supply which may not be available in all homes.
- Installation may require professional assistance due to its electric nature.
- Limited to indoor use, restricting placement options.
Rinnai V75IN Tankless Hot Water Heater
For households that require a reliable and efficient hot water solution, the Rinnai V75IN Tankless Hot Water Heater stands out with its impressive flow rate of 7.5 GPM. This natural gas unit provides endless hot water for up to five appliances simultaneously, making it ideal for busy homes. Its compact design fits various spaces, while energy-efficient operation guarantees you only heat water when needed. With a 10-year warranty on the heat exchanger and a leak detection feature, it’s built for durability. Plus, you can monitor it remotely with a Wi-Fi module, enhancing convenience and peace of mind.
Best For: Families or households that require a high flow rate of hot water for multiple appliances simultaneously.
Pros:
- Endless hot water supply allows for simultaneous use of multiple fixtures without running out.
- Energy-efficient design only heats water when needed, helping to lower energy bills.
- Compact size makes it suitable for various installation spaces, maximizing utility.
Cons:
- Professional installation is recommended, which may add to the overall cost.
- Wi-Fi monitoring module sold separately, limiting remote functionality without additional purchase.
- Higher upfront cost compared to traditional tank water heaters.
Rheem RTG-70DVLN-3 Tankless Natural Gas Water Heater
Ideal for homes with 2 to 3 bathrooms, the Rheem RTG-70DVLN-3 Tankless Natural Gas Water Heater delivers an impressive flow rate of up to 7.0 gallons per minute. With a powerful 160,000 BTUs, you won’t have to worry about running out of hot water. Its Hot Start Programming prevents cold bursts during back-to-back uses, while the Overheat Protection and LeakGuard guarantee reliability and safety. The compact wall-mount design fits snugly in smaller spaces, making installation easy. Plus, with a solid 4.2-star rating, you can trust this model for your household’s hot water needs.
Best For: Families with 2 to 3 bathrooms who require consistent and reliable hot water for multiple simultaneous uses.
Pros:
- Hot Start Programming eliminates cold water bursts, ensuring a consistent hot water supply.
- Compact Design allows for easy installation in smaller spaces, maximizing available area.
- High Efficiency Rating of 0.82 helps save on energy costs while providing ample hot water.
Cons:
- Initial Cost may be higher compared to traditional water heaters, which could be a barrier for some buyers.
- Requires Professional Installation due to gas line compatibility and safety regulations.
- Limited Maximum Temperature of 140°F may not meet the preferences of all users for very hot water.
ORBEK 14kW Tankless Electric Water Heater
The ORBEK 14kW Tankless Electric Water Heater is perfect for those who need a compact and efficient solution for on-demand hot water. With a flow rate of up to 3.38 GPM, it easily serves 2-3 points of use. Its sleek design saves over 50% space compared to traditional tanks. You’ll enjoy endless hot water in just 3 seconds, while the energy efficiency can cut your electricity costs by up to 60%. Plus, advanced safety features like leakage protection and dry-heating protection guarantee peace of mind. The LED display makes temperature adjustments a breeze, enhancing your overall experience.
Best For: Homeowners seeking an energy-efficient and space-saving solution for on-demand hot water.
Pros:
- High energy efficiency reduces electricity costs by up to 60% compared to traditional tank heaters.
- Compact design saves over 50% space, making it ideal for smaller homes or apartments.
- Provides endless hot water in just 3 seconds, ensuring convenience for multiple users.
Cons:
- Requires professional installation with specific electrical requirements (240V/60AMP two-pole breaker).
- Limited flow rate may not support larger households with higher simultaneous hot water demands.
- Initial investment may be higher compared to conventional tank water heaters.
EcoSmart ECO 18 Electric Tankless Water Heater
With its remarkable efficiency rating of 99.8%, the EcoSmart ECO 18 Electric Tankless Water Heater stands out as a top choice for homeowners seeking to minimize energy costs while enjoying continuous hot water. This compact unit, measuring just 17 x 14 x 3.5 inches, delivers up to 3.51 gallons per minute, enough for one shower and a sink. Its patented Self Modulating Technology guarantees peak performance, adjusting energy use based on demand. Plus, the digital temperature control allows you to set your preferred heat level in 1-degree increments. With a lifetime warranty on key components, you can invest with confidence.
Best For: Homeowners in warmer climates seeking an energy-efficient solution for continuous hot water.
Pros:
- High Efficiency: Achieves an impressive 99.8% efficiency rating, reducing energy costs.
- Compact Design: The small size allows for easy wall mounting and saves space.
- Lifetime Warranty: Offers peace of mind with a lifetime warranty on key components.
Cons:
- Temperature Limitations: Performance may be affected in colder climates with incoming water temperatures below 62°F.
- Flow Rate Constraints: May not support multiple high-demand outlets simultaneously in cooler conditions.
- Electric Dependency: Requires a 240-volt electrical connection, which may necessitate electrical upgrades.
Factors to Consider When Choosing Non Condensing Tankless Water Heaters
When choosing a non-condensing tankless water heater, you need to take into account several key factors. Flow rate, energy efficiency, and installation space all play an essential role in ensuring you get the right fit for your home. Additionally, temperature control features and warranty options can greatly impact your overall satisfaction with the unit.
Flow Rate Considerations
How can you guarantee your household meets its hot water demands? Consider the flow rate of your non-condensing tankless water heater, measured in gallons per minute (GPM). A higher flow rate is essential if you have multiple hot water needs, like simultaneous showers, laundry, and dishwashing. For example, a unit with a flow rate of 7.0 GPM can comfortably serve a home with 2-3 bathrooms, allowing multiple fixtures to run at once without a temperature drop. Also, keep in mind the incoming water temperature; colder water can reduce effective flow rates. Verify the flow rate matches your household’s peak demand to prevent running out of hot water during those busy times. Your comfort relies on this critical factor!
Energy Efficiency Ratings
Choosing a non-condensing tankless water heater involves more than just flow rate; energy efficiency ratings play an essential role in your decision. These ratings typically range from 0.82 to 0.99, indicating how effectively the unit converts fuel into usable hot water. Higher percentages mean less energy waste and greater savings on your utility bills. Keep in mind that non-condensing models generally offer lower efficiency compared to condensing units, as they exhaust hot gases that could otherwise heat your water. To boost energy savings, consider heaters with self-modulating technology, which adjusts power output based on your hot water demand. Don’t forget to balance energy efficiency with flow rate; an efficient unit won’t meet your needs if it can’t deliver sufficient hot water.
Installation Space Requirements
Understanding the installation space requirements for non-condensing tankless water heaters is essential to ensuring an efficient setup in your home. These heaters often take up less space than traditional tank models, being about 90% smaller. Many compact designs, typically around 13.5W x 20.75H inches, allow for wall mounting in tight areas. You can install them indoors or outdoors, depending on the model, making them perfect for laundry rooms, basements, or utility closets. However, proper venting is vital, as they need a dedicated vent to safely expel combustion gases. Remember to leave adequate clearance around the unit for maintenance and serviceability, especially since some models may require extra space for ventilation and access to controls.
Temperature Control Features
When selecting a non-condensing tankless water heater, the temperature control features can greatly impact your overall satisfaction. Look for models with digital thermostatic controls that allow precise adjustments within ±1°F, ensuring you get the exact temperature you want. Many units include LED displays that make monitoring and setting your desired temperature easy. Typically, the temperature range spans from 80°F to 140°F, accommodating various household needs. Some heaters use self-modulating technology, automatically adjusting heating power based on demand for consistent output. Additionally, advanced systems often feature safety measures like over-temperature protection, helping to prevent scalding and ensuring user safety. Choosing the right temperature control features will enhance your hot water experience.
Warranty and Support Options
While evaluating non-condensing tankless water heaters, it’s crucial to take into account warranty and support options, as they can greatly influence your long-term satisfaction and peace of mind. Check the warranty duration; many models offer 1 to 15 years on key components like the heat exchanger. Some manufacturers even provide lifetime warranties on electronics, enhancing reliability and cutting future costs. Make sure the warranty covers both parts and labor, as some only cover the heater itself. Customer support varies, so look for brands with 24/7 service and online resources for troubleshooting. Finally, understand the return policy; many retailers offer a 30-day guarantee, allowing you to return the product if it doesn’t meet your expectations.
Fuel Type Availability
Warranty and support options are important, but fuel type availability is another key factor to evaluate when choosing a non-condensing tankless water heater. These units primarily use natural gas or propane, so you need to guarantee your area has access to the chosen fuel. If you live in a rural setting, propane may be your best bet, especially where natural gas lines aren’t available. Keep in mind that the efficiency and performance can vary greatly based on fuel type; natural gas generally provides a higher BTU output than propane. Also, remember that proper venting is essential for gas-powered models, as they emit exhaust gases, affecting installation requirements and costs. Choose wisely to guarantee peak performance.
