The Smallest Heat Pump Water Heater For 2023

Scott Fisher By, Scott Fisher
Updated
Bosch Thermotechnology Electric Mini - Tank Water Heater
Image credit: Amazon.com

Summary

1. Best Overall: Bosch Thermotechnology Electric Mini - Tank Water Heater

Bosch Thermotechnology Electric Mini-Tank Water Heater features a convenient water heater that is designed to provide you with clean and safe hot water. With Bosch's patented technology, this unit contributes to the reduction of pressure costs in your home. It also operates independently, meaning it can be installed easily and quickly. Read Review

2. Best Bang For The Buck: Ecosmart ECO Electric Tankless Water Heater

A tankless water heater that is truly different. Experience the magic of limitless on-demand hot water, while ensuring efficiency and consistency. Work smarter, save energy, save space and enjoy a stylish, modern-looking electric system. The all-new Ecosmart ECO features an exclusive automatic start/stop function with manual override to provide efficient heating and optimum performance. Read Review

3. Best Realiable: Rinnai V53DeN Natural Gas Tankless Hot Water Heater

Rinnai V53DeN is perfect for a variety of applications from homes and businesses to restaurants, hotels, hospitals, and more. With its compact design and durable construction, the V53DeN is easy to install and provides endless hot water. Energy efficiency comes with Rinnai's highly efficient heat-exchange technology that conserves energy while ensuring optimal water pressure. Read Review

4. Best Choice: Bosch Thermotechnology Electric Mini-Tank Water Heater

This Bosch Electric Mini-Tank water heater is a reliable source of hot water. It's easy to install and get your hands on because it can be installed both vertically or horizontally in any area. Whether you need a new attachment for your shower or want to add a fresh and clean water source in the kitchen, this heater will do the job. With its durable construction, it can be relied on for years of dependable use. Read Review

5. Best Powerful: Rinnai RL94eN Non-Condensing Natural Gas Tankless Water Heater

Rinnai RL94eN is designed for the following types of spaces: New Construction, remodeling, Recessed Bathroom, Equipped Bathroom, Basement and Garage. With a non-condensing natural gas tankless water heater, Rinnai RL94eN can be installed in wet or damp areas. It features a modern, trendy design with a durable construction that is professional-installed recommended. Read Review

Installing a heat pump water heater is a great way to save money on your utility costs and keep your home comfortable all year long. But before you dive in, there are a few things you need to know first. The size of your home will determine the size of the water heater you need.

You can choose from smaller, more affordable models or go bigger if you have space for a larger model. If you’re looking for the smallest heat pump water heater, then this is perfect for you.

This particular model has a large capacity that makes it one of the largest heat pump water heaters available on the market today. With its large tank and high-performance heating system, this unit can maintain temperatures at higher pressures and maintain constant temperatures throughout the house efficiently and quietly.

Our experts have determined the models that would be the greatest fit for your requirements, specifically yourBosch Thermotechnology Electric Mini - Tank Water Heater, after doing extensive study and analysis over a considerable time. Consider Ecosmart ECO Electric Tankless Water Heater as an alternative if you're still undecided. Other suggestions on this list are definitely worth considering, and we've put up a useful shopping guide to help you decide!

Our Top Picks

TOP Choice #1 Bosch Thermotechnology Electric Mini - Tank Water Heater
Our Score:
9.9
Bosch Thermotechnology

INDEPENDENT INSTALLATION: 36-37" cord plugs into a 120 volt outlet for independent installation or in-line with a large hot water source

CONVENIENT HOT WATER HEATER: 4 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 13.75 W x 13.75 H x 13.5 D Inches

EASILY MOUNTED: Can be shelf, wall or floor mounted (bracket included); simply tap into the cold water line and install the water heater directly at the sink to provide hot water

LONG LASTING QUALITY: This electric water heater is easy to maintain and has premium glass-lined material for a long service life. (Amps 12A, Volts (VAC) 120)

FAST RECOVERY RATE: Eliminates long waits for hot water at your sink, get on demand hot water at your every need (supplies up to 2 sinks at a time)

TOP Choice #2 Ecosmart ECO Electric Tankless Water Heater
Our Score:
9.7
EcoSmart

Digital temperature control in 1-degree increments gives users complete control of hot water

Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 17 x 17 x 3.75 inches 

Recommended Electrical Panel: 200 Amps

Endless on-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature

Required Breaker Quantity: Three 40 Amp Double Pole

Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used. Save up to 50% in water heating costs according to the Department of Energy

NEVER run out of hot water with an ECOSMART tankless water heater.

EcoSmart ECO 27 Sizing; Refer to the sizing map. Requires 3x40 AMP Double Pole Breaker, 27-kilowatt tankless electric water heater ideal for providing hot water for whole home applications; provides between 2.7 and 6.5 gallons-per-minute depending on the inlet water temperature; refer to the sizing guide to select the proper solution

Warranty and Certifications; Limited Lifetime Warranty on electronics, exchanger and element; UL-499 certified; ETL Listed

Save up to 12 cubic feet of storage space.

TOP Choice #3 Rinnai V53DeN Natural Gas Tankless Hot Water Heater
Our Score:
9.6
Rinnai

Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary.

Guaranteed to Last: 10-, 5-, and 1-year residential factory warranty for heat exchanger, labor, and parts, respectively

Enhanced scale detection lessens possibility of serious, long-term damage to unit

Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended

Optimal Water Pressure: High-performance up to 5.3 GPM hot water flow rate for a powerful, constant stream

4 Bosch Thermotechnology Electric Mini-Tank Water Heater
Our Score:
9.4
Bosch Thermotechnology

CONVENIENT HOT WATER HEATER: 7 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 17.5 W x 17.5 H x 14.5 D Inches

EASILY MOUNTED: Can be shelf or floor mounted. Wall mounting available in vertical orientation only (water connections on top) - bracket included. Simply tap into the cold water line and install the water heater directly at the sink to provide hot water

RELIABLE WATER SOURCE: Easily hard-wire the 7-gallon model to provide the on-demand reliable water source your home or office needs

IMPORTANT INFORMATION: Heating capacity of 1440 watts and a temperature range of 65-145°F max. Operating pressure-150 psi. Water fittings-3/4 inch Male NPT. Electrical requirements (Amp 12A/Volts 120)

INSTALLED VERTICALLY OR HORIZONTALLY: This larger model can be mounted vertically (5.1 gal. of water supply) or horizontally (7 gal. of water supply)- vertical orientation is installed with the cold and hot lines on top of the unit

Professional Installation Recommended: Visit the Find a Rinnai PRO page on our website to locate a qualified technician in your area to install your tankless water heater; We do not recommend installing a water heater without a technician

Smart, Durable Design: Includes 12-, 5-, and 1-year residential guarantee and 5-, 5-, and 1-year commercial factory warranty for heat exchanger, labor, and parts, respectively; See Controlr module for WiFi control (not included)

Find Your Rinnai: See our product guides, manuals, energy guide, warranty information, videos, and tables to find the right tankless water heater for your home; Check our Ground Water Temperature Map to see if this heater is optimal for your region

Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: Non-condensing tankless hot water heater from Rinnai is only the size of a small suitcase and fits in a wide variety of spaces, but provides up to 9.8 GPM (6 fixtures at once)

Original Design: Tankless hot water heater's Circ-Logic technology offers recirculation patterns that match your habits; For the latest in non-condensing technology that speeds up service and installation, check out our new RE180eN model

Self-modulating power control

ON/OFF Dial Control with adjustable digital temperature display

Bottom 3/4" NPT water connections

On demand, consistent and continuous hot water

24kW Model Flow Rate: up to 5.9 GPM for RTEX-24

[Small Compact for Sink] - The hot water heater is compact designed for your sink with dimensions 11.42" x 11.42" x 9.65", can be wall or floor mounted under sink / counter, plug into a standard 120V outlet. Nominal current 12amps

[Adjustable Temperature] - Thermostat with 3 temperature level settings, range from 77°F to 140°F with high temperature limit protection, also a freeze mode to prevent tank from freezing

[Premium Quality & Durable] - Glass-lined tank for great insulation, Incoloy 800 stainless steel heating element, T&P relief valve made in USA, UL listed, ensuring a long service life

[No Wait for Hot Water] - Point of use 1.3 gallons mini tank water heater provides instant hot water where you need it with fast recovery, reducing standby loss. Thermal efficiency up to 99%

8 CAMPLUX ENJOY OUTDOOR LIFE Tankless Water Heater
Our Score:
8.7
CAMPLUX ENJOY OUTDOOR LIFE

6-IN-1 Multiple Protection- Flame-out protection, anti-freezing protection (manual drainage needed), over-heating protection, air flow pressure switch protection to ensure the safety. Safe electronic ignition system, plugs into standard 120V electrical outlet with UL-listed cord.

Considerate Customer Service- Here at Camplux, customer service is everything ! We offer 24 shift hours customer service make the customer experience easy and fast through our live chat, phone support & our online helpdesk. Have a question? Give us a call at (844) 538-7475.

Easy Installation -The propane water heater uses standard 1/2" NPT water fitting and gas inlet. Comes with 2" horizontal vent pipe,ensures efficient power ventilation. Minimum activation rate: 0.65 GPM; Maximum input rating: 68,000 BTU; Water connection location/size: Bottom/0.5-inch NPT. You will need a gas regulator ( Camplux model KR-106A )&1 pc 5/8" NPT male to 1/2" BSP female gas connector adapter if you want to hook this water heater up to a propane tank.

2.64 GPM Instant Hot Water -Camplux high capacity 2.64 GPM propane tankless water heater delivers 2.64 GPM on demand endless hot water ensures instant hot water for any small homes, cabins or apartments. On demand water heater only heats the water when you need it and no waiting for preheat.

Compact Design,Energy saving -The compact size instant hot water heater saves more space than traditional tanks.Trendy and modern design with fahrenheit digital temperature display. Eco and Full gas switch for energy saving and get ideal hot water temperature.

9 RecPro RV Tankless Water Heater
Our Score:
8.6
RecPro

No more waiting for the water tank to warm up or running out of warm water halfway through your shower. With this amazing machine, you can have a steady stream of hot water flowing to your faucets or shower without waiting for the tank to warm up.

There is a forced exhaust structure that keeps the air safe and clean while and after entering the combustion chamber. There is also a dust net to make sure no dirt gets into the tankless water heater.

There is a low water pressure startup, which helps to protect the heater and make it easier to use.

Optimal Water Pressure: Up to 11 GPM hot water flow rate for a powerful, constant stream

Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary

Guaranteed to Last: 15-, 5-, and 1-year residential for heat exchanger, labor, and parts, respectively. Wifi monitoring.

Instant Heating: Equipped with Circ-Logic - Pair with an external pump to reduce wait time for hot water via scheduled or on-demand recirculation

Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended

Product Images, Product Titles, Product Highlights from Amazon Product Advertising API

What to Look For in a smallest heat pump water heater?

Often buyers are reluctant to buy smallest heat pump water heater. When considering a large purchase, certain things should be examined. Our knowledge and experience of smallest heat pump water heater will help in making the best options.

Please keep in mind the following criterial before selecting the smallest heat pump water heater:

Anti-Scale Devices

Some companies advertise that they can reduce mineral scale buildup by swirling water. Although scale may reduce the heater's life expectancy, it doesn't mean you have to spend a lot on fancy options. Look for one that comes with a 122023 warranty. This usually includes an element of a greater or lesser thickness.

Brass Vs. Plastic Drain Valves

A tank water heater has a drain valve located at the bottom that allows for the proper drainage of the tank. The valves can be used with standard garden hoses and made from brass or polyvinyl chloride (PVC). A brass drain valve is better than using plastic for hot water heaters, as brass is more resilient than plastic.

Venting Needs

Electric water heaters do not require venting, so they can be placed in any place in your home. When they heat up, gas hot water heaters emit carbon monoxide and other harmful gases. These heaters use a ventilation system made up of pipes and conduits that removes these byproducts. Gas heaters require venting, take up more space, and are less suitable for homes than electric water heaters.

Digital Displays

Modern water heaters have digital controls, which allow homeowners to set up the heater to turn off when they are away from home. Although a digital display can increase the initial price of the heater, it also increases the heat efficiency, which ultimately saves money.

Space

A lowboy, or shorter water heater might be the best option if you don't have a lot to heat. They are smaller than average and can be used in small homes. You could also consider mini-tank or tankless water heaters. Although gas water heaters are bulky and heavy, it's possible to get smaller models. The size of electric water heaters is generally smaller. If you have limited space, tankless electric water heaters will be the most suitable option.

Efficiency Rating

Efficiency ratings are a measure of how efficient water heaters actually heat water. An efficiency rating of.70 for hot water heaters means that 70% of energy used by them heat water.
The difference between electricity and gas rates means that this rating doesn't give a good indication of the cost you could expect to pay for the unit. A gas heater with a lower efficiency rating will be more efficient than one that uses electricity. However, gas heaters are mucher than electric ones.
Because they don't have to run constantly to heat water, tankless heaters are significantlyer than storage tanks heaters. A tankless water heater can cut down on your energy bills by up to 40% depending on how much hot water you use. To determine the impact on your budget, it is better to calculate the annual operating cost for the hot water heater.

Tank Capacity

You should make sure your tank heater has enough hot water storage to provide heat for your entire family. Although tank heaters are capable of heating water at multiple locations simultaneously, they will require more time to heat the water. This could lead to unexpectedly cold showers.

Gas Or Electric

There are many factors that influence the choice of electric or gas-powered water heaters. These include local utility costs and personal preferences. People who want to save money upfront and those who don't have natural gas in their homes prefer electric water heaters. Gas heaters can be more costly upfront, but they will save you many hundreds of dollars per year depending on the energy cost in your region.

Tankless Or Tank

A tank water heater stores a set amount of hot water and is ready to be sent to several appliances simultaneously. The tankless heaters heat the water quickly and require less space than water heaters with tanks. One unit might not heat enough water for multiple fixtures simultaneously, so it is possible to purchase multiple water heaters.

FAQs

What Are The Signs Your Hot Water Heater Is Going Out?

A failing water heater can be identified by a series of telltale symptoms, such as banging sounds inside the tank and a decrease in temperature.

What Is The Best Compact Water Heater For Saving Space?

Mini-tank or tankless water heaters are compact and light, which makes them great for small homes that have less space.

How Do Water Heaters Work?

A tank-style water heater uses a dip tube that has an outlet in the bottom to heat the cold water. The tank's temperature is monitored by an internal thermostat which activates either a heating element, or a burner that warms water to the desired temperature.
Dual heating elements are used in electric water heaters to heat the water. The bottom heating element heats the coldest water faster, while the top one warms the water if it becomes too hot.
A pilot light, or electronic ignition system for gas water heaters ignites the gas that is flowing to a burner. Before shutting off, the burner heats water in the tank until it reaches a desired temperature. The exhaust is then vented outside.
Water heaters that are tankless don't keep water. They heat the water by using either electric or gas heating elements. The temperature of the hot water is a factor in how fast it flows, however most units are capable of providing hot water at a flow rate between 2 and 7 GPM.

How Often Should I Replace My Water Heater?

According to professionals, your water heater should be replaced every 10 years. A water heater cannot be guaranteed for this long. It is possible that your water heater will need to be replaced sooner than expected.

Gas Vs Electric Water Heaters: Which Is Right For You?

It's not cheap to install a water heater in your house. This is why it's important that you take some time thinking about how to charge your appliances. First, electric heaters offer the most sustainable option for the environment. If you choose one, it will be a better choice for your planet. Although electric water heaters work better, the price of electricity is higher than that of traditional gas options. You can still use your gas heater even if there is no power, so you have less to worry about during a crisis.

What Is A Water Heater?

A boiler is often confused with a water heater. What is the difference between a boiler and a water heater? A water heater heats water to be used for showering, cooking, cleaning, or other purposes. The water heater heats cold water coming from the water supply pipe. It then gives you hot water ready to use for washing your clothes or running a faucet. Water heaters use water that's suitable for cleaning and cooking (potable). A boiler, on the other hand is designed to heat your home and heat water from the taps.

Can You Still Shower If Your Water Heater Is Leaking?

You can still take a hot shower even if your water heater is leaking. You can shower even if the leak becomes severe. It will just mean that you won't get hot water.

How Long Does A Water Heater Last?

Although water heaters come with varying lifespan expectations, many can last for between 8-12 years. Some water heaters can last up to 20 years. Your water quality can make a difference in how long your heater will last. Over time, corrosion can occur from heavy minerals or sediment.
Depending on which model you select, the manufacturer may offer different warranty terms. The most common warranty period is usually between 6 and 9 years.

How Do You Drain A Water Heater?

First, drain the hot water heater by flushing it with water at full pressure. After connecting the drain line, open the drain valve and close it again. The valve will dislodge any sediment, allowing the system to drain faster.
Then, disconnect your water heater from either the electric or gas power supply and shut down the main water supply. Next, disconnect the drain hose from the quick flush and open the drain valve. Once you let air in the tank, water will not flow out. You will need to remove the hot water pipe from the top of the water heater, and then move the pipe to the side. You will see the tank begin to drain.

Can Water Heaters Explode?

Electric and gas hot water heaters are susceptible to explosions. Explosions are rare, but can be caused by increased pressure in the heater, poor installation or maintenance, failure to set the temperature and relief valve (T & P), gas heaters, flammable liquids, or gas leaks.

When new data becomes available, we routinely adjust the list of smallest heat pump water heater. Please do regularly visit our website for the most up-to-date news.

If you have any questions or difficulties with smallest heat pump water heater, please do not hesitate to contact us. We'll try our best to do everything we can to assist you if you ask!


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About Scott Fisher

Scott Fisher
Scott Fisher is a professional in-home renovation and elegant designer. He is highly interactive on Sanford Artedventures's website as editor. In his role, He provides valuable insight and feedback and approaches each article with the passion to followers who need it most. Scott also has worked on countless projects throughout the United States, and he prides himself on his ability to work with practically any client.

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