If you’re looking to enhance your shed with hot water access, choosing the right tankless water heater is key. These heaters not only save space but also improve efficiency, making them ideal for outdoor settings. With various models available, understanding their features and specifications can help you make an informed choice. Let’s explore the top ten options that could transform your shed into a more comfortable space.
EcoSmart ECO 11 Electric Tankless Water Heater
If you’re looking for a compact and efficient solution to provide hot water in your shed, the EcoSmart ECO 11 Electric Tankless Water Heater could be your best choice. This unit boasts a sleek design, measuring just 11.5 x 8 x 3.75 inches and weighing only 6.5 pounds. With its 13KW power and patented self-modulating technology, you’ll enjoy endless hot water on demand. It maintains a consistent temperature within 1°F and operates at 99% thermal efficiency, heating water only when needed. Ideal for small sinks and showers, it’s perfect for your outdoor space without taking up much room.
Best For: Those seeking an efficient and space-saving solution for on-demand hot water in small areas like sheds, bathrooms, or office breakrooms.
Pros:
- Compact design, taking up 90% less space than traditional tank heaters.
- Provides endless hot water and maintains a consistent temperature within 1°F.
- High thermal efficiency at 99%, ensuring energy savings by heating water only when needed.
Cons:
- May not be suitable for larger homes or high-demand applications with multiple showers.
- Requires a 240V outlet and significant amperage draw, which may necessitate electrical upgrades.
- Performance is dependent on incoming water temperature; optimal in warmer climates.
Rheem 18kW 240V Tankless Electric Water Heater, Gray
The Rheem 18kW 240V Tankless Electric Water Heater is an ideal choice for anyone looking to maximize hot water efficiency in a shed or small space. With a flow rate of up to 4.4 GPM and a maximum temperature of 140°F, you’ll enjoy instant hot water when you need it. Its compact design is 90% smaller than traditional tank heaters, making it easy to install on a wall or under a sink. Plus, with 99.8% efficiency and self-modulation technology, you’ll save on energy bills while enjoying reliable performance. This heater combines convenience and effectiveness for your outdoor space.
Best For: The Rheem 18kW 240V Tankless Electric Water Heater is best for homeowners or renters in need of an efficient and space-saving solution for instant hot water in small areas like sheds or apartments.
Pros:
- High efficiency of 99.8% saves on energy costs.
- Compact design allows for versatile installation options, including under sinks.
- Self-modulation technology ensures optimal performance by adjusting power to hot water demand.
Cons:
- Requires a 240V electrical connection, which may necessitate professional installation.
- Limited to a maximum flow rate of 4.4 GPM, which may not be sufficient for larger households.
- Initial purchase cost may be higher compared to traditional tank water heaters.
Rinnai RX199iN Tankless Water Heater
For those seeking a reliable and efficient solution for hot water in a shed, the Rinnai RX199iN Tankless Water Heater stands out with its impressive capacity of up to 11.1 gallons per minute. This unit runs on natural gas or propane and is perfect for both indoor and outdoor installation. Boasting an exceptional energy efficiency factor with a UEF of .98, it helps keep your utility bills low. With its Smart Sense gas control system and optional WiFi control, you can easily monitor your usage. Just remember, professional installation is recommended for ideal performance and safety.
Best For: Those in need of a high-capacity, energy-efficient hot water solution for their indoor or outdoor spaces.
Pros:
- Exceptional flow rate of up to 11.1 GPM, allowing multiple fixtures to be used simultaneously.
- High energy efficiency with a UEF of .98, helping to reduce utility costs.
- Smart technology features, including a Smart Sense gas control system and optional WiFi control for easy monitoring.
Cons:
- Requires professional installation, which may add to the overall cost.
- The optional WiFi control module is sold separately, requiring an additional purchase.
- Limited to natural gas or propane, which may not be suitable for all users.
CAMPLUX Electric Tankless Water Heater (6kW, 240 Volts)
Looking for an efficient solution to provide instant hot water in your shed? The CAMPLUX Electric Tankless Water Heater (6kW, 240 Volts) is a compact powerhouse that heats water only when you need it, cutting energy consumption by up to 50%. With a temperature rise of 50°F at 1.0 GPM, you’ll enjoy endless hot water without waiting. This CSA-approved unit features a durable stainless steel design and crucial safety features like anti-leakage and overheating protection. Easy to install under your sink, the intelligent touch control lets you adjust the temperature effortlessly, ensuring convenience at your fingertips.
Best For: Individuals seeking an efficient and space-saving solution for instant hot water in small areas like sheds, bathrooms, or kitchens.
Pros:
- Heats water on demand, resulting in up to 50% energy savings.
- Compact design allows for easy under-sink installation.
- Features advanced safety mechanisms including anti-leakage and overheating protection.
Cons:
- Requires a dedicated 30A circuit breaker and specific wire size for installation, which may necessitate professional help.
- Limited flow rate of 1.0 GPM may not be sufficient for simultaneous multiple hot water usages.
- Hardwired installation may restrict flexibility in positioning and relocating the unit.
Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
Ideal for those who need a reliable hot water solution in their shed, the Rheem RTEX-24 24kW Electric Tankless Water Heater offers an impressive flow rate of 5.9 gallons per minute. With a maximum temperature of 140 degrees Fahrenheit and 99.8% efficiency, this compact unit guarantees continuous hot water for your entire space. Its wall-mount design saves room, while the adjustable dial control and digital temperature display provide user-friendly operation. Just remember, it requires a 200 AMP household service and three 40 AMP double pole breakers. Enjoy a modern, efficient solution for your outdoor hot water needs!
Best For: Those seeking a reliable and efficient hot water solution for their home or shed.
Pros:
- Compact design saves space and is up to 93% smaller than traditional water heaters.
- High efficiency rating of 99.8% minimizes energy costs.
- Continuous hot water supply with an impressive flow rate of 5.9 gallons per minute.
Cons:
- Requires a significant electrical setup with three 40 AMP double pole breakers and a 200 AMP household service.
- Installation may need professional assistance, increasing upfront costs.
- Performance can be affected by ground water temperature.
Rheem 11kW 240V Tankless Electric Water Heater
The Rheem 11kW 240V Tankless Electric Water Heater stands out with its adjustable digital temperature display, making it perfect for anyone needing precise control over their hot water in a shed. With a flow rate of up to 2.68 GPM, you’ll enjoy consistent, on-demand hot water without the wait. Its self-modulating power control optimizes energy use, keeping your bills low while delivering a reliable supply. The ON/OFF dial control offers simplicity, ensuring you can easily adjust settings to your preferences. Plus, the side 1/2 NPT water connections make installation straightforward, so you can start enjoying hot water quickly.
Best For: Those seeking an efficient and reliable solution for on-demand hot water in smaller spaces, like sheds or cabins.
Pros:
- Adjustable digital temperature display allows for precise temperature control.
- Self-modulating power control optimizes energy use, potentially lowering utility bills.
- Flow rate of up to 2.68 GPM ensures a consistent and continuous supply of hot water.
Cons:
- Requires a 240V electrical connection, which may necessitate electrical upgrades.
- May have limitations in high-demand situations if multiple outlets are used simultaneously.
- Installation may be more complex for those unfamiliar with plumbing and electrical work.
ORBEK 14kW Tankless Electric Water Heater
For those seeking an efficient and space-saving solution for their shed, the ORBEK 14kW Tankless Electric Water Heater stands out with its impressive flow rate of up to 3.38 GPM. This compact unit measures just 9.5W x 14.2H x 3.1D inches, making it perfect for tight spaces. It provides endless hot water in just three seconds while reducing electricity costs by up to 60%. With advanced safety features like leakage and over-temperature protection, you can use it with peace of mind. Plus, the LED digital display allows for easy temperature adjustments, ensuring comfort whenever you need it.
Best For: Individuals or families seeking an efficient and compact solution for providing endless hot water in small spaces like sheds or apartments.
Pros:
- High energy efficiency, reducing electricity costs by up to 60% compared to traditional tank heaters.
- Provides hot water in just 3 seconds, ensuring quick access when needed.
- Compact design saves over 50% space, making it ideal for tight areas.
Cons:
- Requires a specific electrical setup (240V/60AMP two-pole breaker) which may necessitate professional installation.
- Limited flow rate of 3.38 GPM may not suffice for larger households with multiple simultaneous hot water demands.
- Initial cost may be higher than traditional tank water heaters.
ThermoMate Electric Tankless Water Heater for Single Sink Faucet
With its compact design and impressive efficiency, the ThermoMate 3500W Electric Tankless Water Heater is perfect for those seeking instant hot water in their shed or workspace. Weighing just 3.09 pounds and measuring 6.4W x 7.9H x 2.5D inches, it fits snugly in tight spaces. This unit boasts a remarkable 99.8% efficiency, delivering up to 0.66 GPM and a temperature range of 86°F to 131°F. Its self-modulating technology adjusts energy use based on demand, while safety features like overheat protection guarantee safe operation. Plus, the touch control panel makes temperature adjustments a breeze!
Best For: Those needing an efficient and compact hot water solution for single sink faucets in tight spaces like sheds or workspaces.
Pros:
- Exceptional energy efficiency with a 99.8% rating.
- Compact and lightweight design suitable for limited installation areas.
- Self-modulating technology optimizes energy use based on hot water demand.
Cons:
- Limited maximum flow rate of 0.66 GPM may not support multiple fixtures.
- Requires hardwiring and specific electrical setup, which may complicate installation.
- Only suitable for single sink faucet use, limiting versatility.
SIVUATEK 14kW Tankless Electric Water Heater
Ideal for those seeking efficient hot water solutions in limited spaces, the SIVUATEK 14kW Tankless Electric Water Heater offers an impressive flow rate of 3.3 gallons per minute. With a compact design measuring just 15.87 x 11.14 inches, it’s perfect for wall-mounted or under-sink installations. You’ll enjoy instant hot water with precise temperature control and up to 99% thermal efficiency, reducing your heating costs by up to 60%. Plus, its safety features guarantee peace of mind. With a strong customer rating of 4.7 stars, this tankless water heater is a reliable choice for your shed’s hot water needs.
Best For: Those looking for an efficient, compact, and reliable solution for instant hot water in limited spaces.
Pros:
- Up to 99% thermal efficiency, leading to significant energy savings.
- Compact design allows for flexible installation in various spaces.
- Safety features like leakage protection and auto shut-off ensure reliable operation.
Cons:
- Requires a dedicated 60-amp circuit breaker, which may necessitate electrical upgrades.
- Limited flow rate of 3.3 GPM may not be sufficient for larger households with multiple simultaneous hot water needs.
- Installation may require professional assistance if electrical or plumbing modifications are needed.
Tankless Electric Water Heater 110V, 5000W Instant Under Sink
If you’re looking to maximize space and efficiency in your shed, the ECOTINYMACH Tankless Water Heater is an excellent choice. This compact, 5000W unit provides instant hot water on demand, so you won’t waste time waiting. With a user-friendly design and remote control, adjusting temperatures between Fahrenheit and Celsius is a breeze. Plus, it only operates when you need hot water, making it energy-efficient. Its safety features, like overheat protection and temperature lock, guarantee peace of mind. Remember, you’ll need a 60AMP circuit breaker and a licensed electrician for installation. Enjoy hot water with minimal hassle!
Best For: Those seeking an efficient, space-saving solution for instant hot water in small areas like sheds or under sinks.
Pros:
- Instant hot water on demand eliminates waiting time.
- Energy-efficient operation only activates when needed, saving on energy costs.
- User-friendly design with a remote control for easy temperature adjustments.
Cons:
- Requires a minimum 60AMP circuit breaker, which may necessitate electrical upgrades.
- Installation should be performed by a licensed electrician, adding to overall cost.
- Limited to 110V operation, which may not suit larger hot water needs.
Factors to Consider When Choosing Tankless Water Heaters for Sheds
When choosing a tankless water heater for your shed, you need to take into account several important factors. Size and space requirements, energy efficiency ratings, and flow rate capacity can all impact your decision. Additionally, installation factors and temperature control options will guarantee you pick the right model for your needs.
Size and Space Requirements
Choosing the right size and space for a tankless water heater in your shed is essential for maximizing efficiency and usability. Many models are up to 90% smaller than traditional tank heaters, allowing for versatile placement in tight areas. Make sure the unit’s weight is manageable; some options weigh as little as 6.5 pounds, making installation easier. Check the installation requirements, as specific mounting types or space for electrical connections could affect your setup. Also, consider the flow rate capabilities to meet your hot water demand based on the number of fixtures in your shed. Finally, confirm that your shed’s electrical system can support the required voltage and amperage for the heater you choose.
Energy Efficiency Ratings
Understanding energy efficiency ratings is key to selecting the right tankless water heater for your shed. These ratings typically range from 99% to 99.8%, showing minimal energy loss compared to traditional tank models. Look for the Uniform Energy Factor (UEF), which measures how much hot water a unit produces per energy unit consumed. Many tankless models feature self-modulating technology, adjusting energy use based on your hot water demand, leading to significant savings on your energy bills. Plus, they provide instant hot water, eliminating standby heat loss common with conventional heaters. By choosing a tankless system with a high energy efficiency rating, you could cut your energy costs by up to 60%, making it a smart investment for your outdoor space.
Flow Rate Capacity
Flow rate capacity is an essential factor to evaluate for tankless water heaters in sheds, as it determines how much hot water you can access at any given moment. Measured in gallons per minute (GPM), a flow rate of 2-3 GPM suffices for single-use applications, while 4-5 GPM can support multiple fixtures at once. Remember, colder incoming water temperatures lower the available flow rate, so consider your shed’s location and climate. If you need hot water for several bathrooms or appliances simultaneously, opt for models with higher flow rates. Matching the flow rate capacity to your expected hot water demands guarantees you won’t run out during peak usage times, providing a reliable hot water supply when you need it most.
Installation Considerations
When selecting a tankless water heater for your shed, installation considerations play a key role in ensuring ideal performance. First, check that the heater’s electrical requirements match your shed’s existing system to avoid compatibility issues. Space is another essential factor; while tankless heaters are typically compact, they still need specific dimensions for proper mounting. Local building codes and regulations might have specific requirements, so make sure to research those as well. Additionally, plan for adequate water supply connections and drainage options to support your intended usage. Finally, consider the accessibility of the installation location, as you’ll need to perform periodic maintenance and inspections, ensuring your heater stays in top working condition.
Temperature Control Options
Choosing the right temperature control options for your tankless water heater can greatly enhance your shed’s hot water experience. Look for models with adjustable digital displays that let you set temperatures between 80°F and 140°F. Self-modulating technology is another key feature, as it adjusts energy output based on your hot water demand, ensuring consistent temperatures while saving energy. Some units maintain stability within ±1°F of your selected setting, preventing annoying fluctuations during use. This precision is especially important for safety, helping to prevent scalding, particularly in homes with children or elderly residents. Additionally, consider units with LED displays for real-time feedback, giving you better convenience and control over your hot water supply.
