6 best eco friendly water heaters

Eco-friendly water heaters are energy-efficient and environmentally responsible appliances that are designed to provide hot water while minimizing their impact on the environment. These water heaters typically use advanced technologies to reduce energy consumption and greenhouse gas emissions.Here are some key aspects of eco-friendly water heaters:

  1. Types of Eco-Friendly Water Heaters:

    • Solar Water Heaters: These systems use energy from the sun to heat water. They consist of solar collectors that capture sunlight and transfer the heat to a fluid, which is then used to heat the water in a storage tank.
    • Heat Pump Water Heaters: Heat pumps extract heat from the air or ground and use it to heat water. They are highly efficient and can be up to three times more energy-efficient than conventional electric water heaters.
    • Tankless (On-Demand) Water Heaters: Tankless water heaters only heat water as it is needed, eliminating the need for a storage tank. This reduces standby energy losses, making them more energy-efficient.
    • High-Efficiency Gas or Electric Water Heaters: These water heaters use advanced insulation and combustion technologies to reduce energy consumption and emissions compared to standard models.
  2. Energy Efficiency:

    • Eco-friendly water heaters are designed to be highly energy-efficient, resulting in lower utility bills and reduced carbon emissions.
    • Many of these water heaters meet or exceed ENERGY STAR® or other energy efficiency certifications, which helps consumers identify environmentally friendly options.
  3. Reduced Water Usage:

    • Some eco-friendly water heaters are equipped with features such as low-flow fixtures and recirculation systems, which help reduce overall water consumption.
  4. Heat Recovery Systems:

    • Heat recovery systems capture waste heat from appliances or processes and use it to preheat water, further increasing energy efficiency.
  5. Environmental Benefits:

    • By reducing energy consumption and emissions, eco-friendly water heaters contribute to a lower carbon footprint and help combat climate change.
    • Solar water heaters, in particular, rely on a renewable energy source (sunlight) and have minimal environmental impact.
  6. Installation and Maintenance:

    • Proper installation and regular maintenance are crucial to ensure the continued eco-friendliness and efficiency of these water heaters.
    • It's important to consult a professional plumber or HVAC technician for installation and maintenance.
  7. Cost Considerations:

    • While eco-friendly water heaters may have a higher initial cost compared to conventional models, they often pay for themselves over time through energy savings.
  8. Incentives and Rebates:

    • Many governments and utility companies offer incentives and rebates to encourage the adoption of eco-friendly water heaters, making them more financially attractive.

Overall, eco-friendly water heaters offer an environmentally responsible and cost-effective way to provide hot water while reducing energy consumption and greenhouse gas emissions. Choosing the right type of water heater depends on your specific needs, budget, and environmental goals.

Below you can find our editor's choice of the best eco friendly water heaters on the market
  

Bestway 58423E-BW 43 x 67 Inch Above Ground Portable Clean Sun Powered Solar Eco Friendly Swimming Pool Mat Pad Hot Water Warmer Heater, Black

Bestway

Based on 2 reviews Check latest price

Product description

Give your family an extended pool season this year by keeping your pool temperature warmer longer with the Bestway 58423E-BW Sun-Powered Pool Water Heater. With all-natural sun usage, this heating panel requires no electricity. The setup is convenient and easy. Simply hook up the eco-friendly water heater to a compatible 2500-gallon filter pump or 2000-gallon sand filter. Your above ground pool temperature will increase by approximately 5-9 degrees Fahrenheit depending on your current weather conditions. This mat functions well with multiple solar pads, coming with adapters that fit 1.25 and 1.5-inch hoses. Make sure you get the most out of your splash zone and hook up this pool water heater to others if you've got a larger pool. You can also use the pool water heaters to make the temperature of your pool even warmer. The Bestway 58423E-BW Sun-Powered Pool Water Heater will keep your water temperature balanced whenever you're ready to soak in the outdoors with your friends and family.

  • ECO-FRIENDLY: Economically and environmentally friendly way to heat your above-ground Bestway summer swimming pool water
  • INCREASES 9 DEGREES FAHRENHEIT: Increases water temperatures by approximately 5-9 degrees Fahrenheit in differing weather conditions
  • PUMP AND FILTER COMPATIBILITY: Compatible with 2500-gallon filter pumps and 2000-gallon sand filters
  • ADAPTERS INCLUDED: Includes adapters that cooperate with 1.25 and 1.5-inch hoses for hooking up additional solar heaters
  • CAN BE USED IN MULTIPLES: Works well when paired with multiple solar pool pads to heat larger sized pools

User questions & answers

Question: Will this work with a 1000 gal sand pump filter
Answer: Nope not too high.
Question: Do the heaters have to be placed at an 45 degree angle or can they be laid flat
Answer: Slightly in the design.
Question: What type of connections would i need to buy to hook 2 of them together and to hook it up to my intex pump
Answer: I do not think it is genuine leather, because it does not smell like real leather, but it is very soft.

Outdoor Hygiene 5 Gallon Solar Shower Camp Shower Water Heater Portable Summer Camping Gear Food Grade TPU Material Eco-Friendly Sun Shower Bag for Beach Swimming Outdoor Traveling

Outdoor Hygiene LLC

Based on 112 reviews Check latest price

Product description

A portable solar water heater, essential camping gear to keep you clean.



Bring it anywhere with you! Beach, Trail, Boat, or Music Festival!



Enjoy a hot shower and stay clean on camping trips! Just fill up the reservoir with water through the upgraded extra-large water intake, set it out in the sun. When the water reaches optimal temperature, hang it up high enough then enjoy!



Caution: always test water temperature before use.



The shower bag itself is made of food grade TPU, which is exactly the material we use on high quality drinking bladders. Perfect for dish washing (if filled with clean water), and if necessary, feel free to use it as an emergency portable water container.



*Recommend for SUMMER use.



Net Weight: 19.4oz(550 g)

  • FOOD GRADE TPU MATERIAL - Unlike most camp shower bags, OUTDOOR HYGIENE solar shower bags are made of food grade TPU, a trusted high quality material, safe and durable, widely used in drinking bladders, soft flasks, and food containers. Optimized for heating water with solar power, water in the shower bag can stay hot for hours.
  • UPGRADED SHOWER NOZZLE - New generation shower nozzle gives you more control over the water-flow and saves water. *Press - Hold - Wash*
  • EASY CLEANING - Extra-large filling intake makes it easy to clean the inside with hands and wipes, and can be used as wet clothes storage.
  • HIGH QUALITY ACCESSORIES - Premium quality made to last and you will immediately notice the difference when you open the box.
  • ECO-FRIENDLY - Environmentally friendly TPU material, no harmful chemicals or toxic plastic odor.

User questions & answers

Question: First day got it , filled with water,attached the hose til click, pushed on lever on head nothing comes out ?! What's wrong
Answer: There is a second one also
Question: Does water drain out the bottom? (The hole for the hose is above the bottom on our current bag and we can't get all the water out of the bag
Answer: Yes, and very comfort
Question: How many quick showers out of one fill
Answer: Yes.It has long and short handle and plus 4 wheels.

Stiebel Eltron Tankless Water Heater – Tempra 24 Plus – Electric, On Demand Hot Water, Eco, White, 20.2

Stiebel Eltron

Based on 616 reviews Check latest price

Product description

"The Stiebel Eltron Tempra 24 Plus Tankless Water Heater features exclusive Advanced Flow Control German patented technology invented by Stiebel Eltron to automatically maintain water temperature for constant comfort. It’ll reduce flow slightly if hot water demand exceeds capacity to ensure that hot showers will never be interrupted. Tempra 24 Plus will typically use 15-20% less energy compared to conventional electric tank water heaters. Although, it’s possible to save significantly more energy depending on personal home usage habits. The difference is that conventional tank water heaters continually store hot water, and as a result, lose 15%-20% of the total energy consumed to the environment around them. This is called standby heat loss. Tank water heaters that use gas or oil are even less efficient, because they also lose heat through their vents to the outdoors. Our tankless water heaters do not need venting, and will not store hot water, waiting for you to use it. They operate on-demand to provide continuous and endless hot water when you need it, and not waste energy when you don’t. CERTIFICATIONS INCLUDE - ANSI/UL Std. 499, CSA Std. C22.2 No. 88, ISO 9001, WQA tested & certified against NSF/ANSI 372 for lead free compliance. TECHNICAL SPECIFICATIONS – Single Phase 50/60 Hz; Voltage: 240 V/208 V; Wattage: 24 KW/18 KW; Min. recommended household electric service 150 A; Amperage draw: 2 x 50 A 2 x 44 A; Number and min. recommended size of circuit breakers: 2 x 50 A (DP); Number of runs and min. recommended wire size (copper): 2 x 6/2 AWG; Max. temperature rises: 92 F/82 F at 1.50 GPM, 73 F/54 F at 2.25 GPM, 54 F/41 F at 3.00 GPM, 37 F/27 F at 4.50 GPM; Min. water flow to activate unit: 0.50 GPM/1.9l/min; Weight: 16.1 lb/7.3 kg; Nominal water volume: 0.26 gal/1l; Max. inlet water temperature: 131 F/55 C; Working pressure: 150 PSI/10 BAR; Tested to pressure: 300 PSI / 20 BAR; Water connections: 3/4"" NPT."

  • CONTINUOUS FLOW – Advanced Flow Control patented technology invented by Stiebel Eltron, automatically maintains water temperature for constant comfort. It’ll reduce flow slightly if hot water demand exceeds capacity. Hot showers will never be interrupted again
  • SPACE & ENERGY SAVER – Its small, sleek white design saves space yet still provides endless hot water for your whole house, and no venting is required. Eco friendly unit saves energy with auto-modulation and the ability to electronically control water flow. Savings monitor even shows how much you save on energy costs
  • EASY OPERATION – Electronic switch activates the hot water heater and it’s noise free while in use. Has a digital temperature display and preset temperature and memory buttons, while the interior solid copper heating system does all the power work
  • TEMPRA 24 PLUS – This specific model is 24kW, 240V, requires a min recommended electric service of 150 A, and offers an output water temperature of 68° to 140°F. Check our guides below to compare features of our various Trend and Plus models, each available in different kW levels
  • WARRANTIES INCLUDED – Stiebel Eltron’s top-rated electric tankless water heaters perform with the highest standards for comfort and reliability. Our 7-Year Leakage and 3-Year Parts Warranties are included with purchase

User questions & answers

Question: How can i make tempra trend 24 work with my bosch shx33a05uc/22 dishwasher? the dishwasher will not advance to next cycle. water is not hot enough
Answer: This water heater activates at 0.5 GPM and will heat to your set temperature at the correct flow rate for that set temperature. Please call our Technical Department at 1-800-582-8423 Ext 6 with more details so we can help you better. (for example, does the dishwasher have its own heating element, distance between the 2 units, etc...) Thank you.
Question: Electric panel is ~50 feet from where i want to install the tempra 29 trend. is this distance ok for #8 thhn wire
Answer: The recommended wire is 8/2 and there is not a limit to distance written in the install directions. You need to check with your electrician. Make sure he is state license and insured. We have installed a Tempra 29 and our electrician ran three 8/2's approx. 30' with no question. But check with your electrician and local codes. God bless you and happy New Year.
Question: Is there an installation kit available for this? i am installing in a remote location & plumbing parts are not available? water lines are pvc
Answer: There is no specific installation kit. However, we suggest using flexible braided hose connections that screw onto the hot and cold water for the first 18" or so. These connections are easy to remove to check a filter screen or if needed to work on the unit in general. The connections are 3/4" NPT. Please feel free to call our Technical Support Department at 1-800-582-8423 ext 6 with any questions. Thank You.
Question: Where is it made
Answer: We asked the Manufacturer and they replied: "These are made in Holzminden, Germany"

Product features

1 Find your approximate ground water temperature on the map.

2 Check the column on the table to see how many fixtures can be supplied at the same time for each model.

Samovar Boat Camping Tent Caravan Turkish Tea Kettle 4 Ltr / 150 oz Hot Water Heater Wood Stove & Camping Hiking Hunting BBQ & eco-friendly

Based on 59 reviews Check latest price

Product description

Chrome-Steel Turkish Samovar - Usable with wood/kindling or coal - Has metal handles - Has a hot water tap - Samovar is used to boil water and brew tea using the teapot on top - The top compartment can be removed so that the bottom part can be used as a BBQ - Keep heat for a long time - It is very useful in tents, campers, boats etc. - The combustion controlled through the cover. Close the cover when you want to continue burning. Because samovar goes to sleep - Use this for heating and hot water supply for washing up even shower! - Offers you a unforgettably tasty tea and hot drinks. Essential piece of camping kit if you like a hot cuppa, soup , coffee etc. - can easily ignite and use in balconies, verandas or gardens. - Fissionable, easily portable! This samovar is It is Composed of 6 pieces. - Two tap samovar: built a teapot and second tap in water reservoir for tea, it's used for making tea with loose INSTRUCTIONS TO USE: - fill the bottom compartment with firewood and set alight - fill the top with water - smoke comes out the middle through a stainless steel chimney , - the chimney runs through the water tank(obviously the chimney is sealed), - the fire can also be fed through the chimney, -no charcoal is needed , dry bits of firewood/grass do fine. very economical = FREE ENERGYl! -water boils in the top compartment -there is a place on the top where you can sit a small teapot (not included) to keep it warm in the steam. NOTE: there can be some scratches due to it is mostly handmade

  • SEMAVER TEA TURKISH HANDMADE CHROME SAMOVAR &TEA KETTLE & HOT WATER HEATER
  • Samovar Free Energy Water Heater 4L /150 Oz Semaver Samovar Boat Camping Hiking Hunting Yachting Tea Kettle Urn Tea-urn BBQ
  • DIMENSIONS: Hot water reservoir volume: 4 liters (150 oz) Total weight: 2 kg Height: 13 inches (33 cm) -Diameter: 10 inches -Chimney: 5 inches (13 cm ) BBQ
  • PACKAGE INCLUDES: 1 piece BBQ 1 piece water reservoir with cover - 1 piece chimney - 1 tap with seals and one nut
  • DESCRIPTION: - Traditional Turkish Samovar - Usable with wood/kindling or charcoal - Has metal handles - Has a hot water tap - Samovar is used to boil water and brew tea using the teapot on top - The top compartment can be removed so that the bottom part can be used as a BBQ - Keep heat for a long time - It is very useful in tents, campers, boats etc

User questions & answers

Question: Does this have one tap or two
Answer: According to their website, all of their products are vegan unless it contains honey so the glycerin is plant based. Wish it said that on the bottle.
Question: Look i want to check it out can you send me one to review and test out if i dont like it ill send it back if it works good ill make a great review
Answer: I have found this to be one of the most gentle just remember to rinse well my GYN said if I am not allergic to essential oils there is no artificial products to irritate the sensitive areas and lots of moisturizers such as aloe which is the base ingredient
Question: Wouls this be suitable for heating a small tent
Answer: According to the manufacturer, most EO lotions contain silicone.
Question: Is this used for heating also? I was looking to heat my camper and have the extra uses this offers
Answer: I do use this on my face in dry weather -- seems to work well!

Rheem PROG50-42N RH67 PV Professional Classic Residential 42K BTU Power Vent Natural Gas Water Heater, 50-Gallon

Based on 5 reviews Check latest price

Product description

Efficiency:. 67 EF - Performance: FHR: Up to 87 gallons for 50-gallon models and up to 71 gallons for 40-gallon models, Recovery rate is 32.4 to 42.4 for 50-gallon models and 32.4 to 40.4 for 40-gallon models at a 90 degree rise - Self-Diagnostic System: Electronic gas control for improved monitoring and service - Low Emissions: Eco-friendly burner, low Knox design.

From the Manufacturer

Efficiency:. 67 EF - Performance: FHR: Up to 87 gallons for 50-gallon models and up to 71 gallons for 40-gallon models, Recovery rate is 32.4 to 42.4 for 50-gallon models and 32.4 to 40.4 for 40-gallon models at a 90 degree rise - Self-Diagnostic System: Electronic gas control for improved monitoring and service - Low Emissions: Eco-friendly burner, low NOx design

  • Uses indoor air for combustion; blower exhausts the flue gases
  • Exclusive air/fuel shut-off device. Maintenance free - no filter to clean
  • Long venting lengths up to 100 equivalent feet
  • Rheum exclusive R-Tech (registered) anode rod provides long-lasting tank protection

User questions & answers

Question: Does this unit come with the blower or is it separate
Answer: you can buy a replacement bar and chain for this Pole Pruner Trimmer. it is just like a chainsaw on a pole. All you need is Bar length = 8", and the Number off the chain, located on the bottom side of the teeth, called the "Pitch"
Question: Can you use these water heaters without a power vent
Answer: I have had this tool for a number of years and have used it with three different power heads...a Poulan, a gas Ryobi, and now a 40V battery Ryobi. It works in all of these machines, and I have a Craftsman cultivator that has also worked on each of these power heads, so they should be interchangeable. For the record, the pruner is AMAZING with my Ryobi battery unit! I've used it more in the last month than I used the pruner in the last 10 years just because of the ease of use.
Question: Rheem model 21DV50 - 21 years old occasionally make a large burping sound works fine otherwise. What is the cause
Answer: Yes, it works well with the Husqvarna128LD.

Ecosmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology,White

EcoSmart

Based on 3 reviews Check latest price

Product description

This Smart Technology electric tankless water heater is configured as a "whole home" model for climates where incoming water temperature is 62°F and above. The ECO 18 is capable of heating over 2.5 gallons per minute, which is the equivalent of one water saver shower head (with a 1.5 gpm flow) and one sink with a low inlet water temperature of 62°F, and an output setting of 105° F. Two showers emitting no more than 1.5 gpm each can be run simultaneously when incoming water temperature is above 70° F. Digital temperature control allows you to set your temperature in increments of 1°. All tankless water heaters are sized based on flow rate and temperature rise, and there is a direct relationship between the two. So if used in a cold area requiring a high temperature rise, it will be more limited in the amount of fixtures (gallons per minute) it can heat at one time compared to a warmer climate. However, when sized properly it will provide endless hot water and only consume the energy needed, giving the user complete control. Prior to purchase and installation please verify this model is the right size for the expected demand and electrical requirements. The ECO 18 requires a minimum 150 amp electrical panel for installation with 40 amp double pole breakers connected to sets of #8 awg wire. Plumbing connections are 3/4" NPT. For additional assistance please feel free to contact our support center at 877-474-6473.

From the Manufacturer

This Smart Technology electric tankless water heater is configured for climates where incoming water temperature is 62 Degree F and above. The ECO 18 is capable of heating over 2.5-Gallon per minute, which is the equivalent of one shower head (with a 1.5 gpm flow) and one sink with a low inlet water temperature of 62 Degree F. Two showers can be run simultaneously when incoming water temperature is above 70 Degree F in warmer climates such as South Texas, South Florida, New Mexico, Arizona and South California. These models come with a digital temperature control that allows you to set your temperature in increments of 1 Degree. Prior to purchase and installation please verify this model is the rights size for your hot water needs and electrical requirements.

  • The product is highly durable
  • The product is easy to use
  • Manufactured in China
  • Copper and stainless components
  • Lifetime warranty for residential use
  • Save up to 60% on your water heating costs with the most advanced, self modulating technology available
  • Never run out of hot water with an ECOSMART tankless water heater.

User questions & answers

Question: How do know which size to buy? We will supply two bathrooms, dish washer, clothes washer. What size should I choose
Answer: I noted someone below stating they got the largest one and they can only run one water source at a time. My guess is they installed it wrong by not getting the electric hooked up right, or maybe the unit was just defective, or they live in Alaska. I went under size with an Eco 27 a few years ago because that’s all my electric panel could handle. We have zero issues in the summer. During winter months we can only run one shower at a time and have to slowly fill a tub (maybe 3/4 fill speed). To save as much money as I am on electric bill and have unlimited shower lengths (only 1 person at a time mid-Dec to mid-March) is totally worth it. On here today because I’m thinking of upping my panel size so was thinking of going with a larger one now. Regardless, CCRC’s experience with the largest unit not working is nothing like the experience I’ve had, and again I intentionally undersized mine for the house. The website has a clear chart to explain size you need based on number of water fixtures in your home and ground water temperature.
Question: Can this unit supply a 3,700 sq foot home with 3 1/2 baths
Answer: In the lower states it can, but in the northern states, multiple simultaneous users, it will be overloaded. If you can afford a 3,700 square foot home, then you can place a unit in each appropriate demand zone and be very glad you did. I love mine, live in KY, get great supply when the water is above 60 degrees, and then it slows the flow as the temperature drops. I have dishwasher, washing machine, garden tube, 2 showers, 3 sinks and 4 people. It is better than great in the summer, okay spring and fall, and we are conservative in the winter.
Question: What is the power consumption of this tank-less heater
Answer: The instantaneous power consumption while the hot water is running is quite high (up to 18kW or 27kW depending on which model you’re looking at on this page). However, when no hot water is being used, the power consumption is 0 (or a minuscule amount to run an LED light or something). The total power consumption over the course of several days or longer should be much lower than a tank heater but the short term power usage while the heater is making hot water will be much higher than a tank heater. It’s just that the unit sits idle most of the time while a tank heater will use power fairly frequently even when no hot water is needed as the water in the tank cools off over time and needs to be re-heater fairly constantly
Question: remote
Answer: This unit does not have the ability to have a remote temperature control.

Product features

3 Smart Steps for Endless Hot Water

Step 1: Determining your average inlet water temperature is important, this allows you to determine how well your unit will perform in your desired location. A lower inlet water temperature will require a higher kilowatt product.

Step 2: Next you will determine how many applications your unit can run simultaneously at your chosen location inlet water temperature. Tankless electric water heaters are sized for maximum simultaneous use, not maximum fixtures in your home.

Step 3: Determining specifications and electrical infrastructure is important because without the correct infrastructure your unit may not fit into your breaker panel.

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