Water heater with heat pump - A compact unvented hot water heater with storage tank in either 10 litres or 15 litres. Suitable for sinks only. Heat pump: available with the Dalis Pro. An air source heat pump, designed for energy-efficient production of domestic hot water. Either 200 litres or 260 litres, an include an optional heat exchanger for connection to solar/PV.

 
Heat pump water heaters cost between £1,400 and £4,100 on average. Price will vary depending on the size of the heat pump – that is, how many litres it can hold – as well as the brand, model, and installer. The average three-bedroom home with one or two bathrooms needs a water tank of around 180 litres to meet its needs.. Bosch dishwasher sales

Exhaust air-water heat pumps transfer heat to a heating circuit that includes a tank of domestic hot water. Solar-assisted heat pump. Hybrid photovoltaic-thermal solar panels …With the rising costs of energy and the increasing concern for environmental sustainability, homeowners are constantly seeking ways to optimize their energy usage while also saving...A heat pump water heater is two to three times more efficient than traditional options, meaning it can require just one-third of the typical energy consumption to heat …1. The efficiency of the water heater goes down when it is in a cold space, and rises when it is in a hot space. The ideal place for a heat-pump water heater in Florida is inside the home's thermal envelope, because the appliance provides free cooling and dehumidification. 2. If you end up putting the water heater in an attic, make sure that ...A heat pump water heater, also known as a hybrid water heater, employs the same process but in reverse. A fan at the top of the unit draws in air across an evaporator, which is a series of refrigerant-filled tubes. The …The V-Guard Domestic Heat Pump has a silent operation; therefore, you won't be disturbed by the rumbling noise. Condition: Note * Heating Capacity at Air 20°C/15°C, Water Temperature from 15°C to 55°C. Easy to install and assures hassle-free services. The low-maintenance feature helps you save money and time. The electric backup …HEAT PUMP WATER HEATER. Ever worried about the wastage of energy when you turned on your electric water heater ? Ever wondered if the water in your heater is enough for your bath ? Well, with the all –new Havells Heat Pump ; you can let go of all these worries and just get down to enjoying your Bath. Heat Pump comes with the capacity to ...Heat Pump Water Heater. A hybrid heat pump water heater costs $2,000 to $4,600 installed. These systems operate three times more efficiently than electric water heaters, saving $250 to $500 annually. Swimming Pool Heat Pump. A swimming pool heat pump costs $2,000 to $6,000 installed. Our most technologically advanced heat pump water heater! You’ll get all the standard AeroTherm ® Series features plus the ability to turn your heat pump water heater into a smart, connected appliance you can control with your phone. With the Bradford White Connect™ app, you can: Adjust temperature settings. Set daily or weekly schedules. These categories are called bins. A water heater is assigned a UEF within its bin based upon its first hour rating. A higher UEF means a water heater is more energy efficient and will cost less to operate compared …A. O. Smith's Signature® 900 Series 66 Gallon tall high efficiency hybrid electric heat pump Water Heater is designed to provide efficient and reliable hot water for households with 3 to 4 people when sized appropriately. A. O. Smith Signature® 900 heat pump water heaters can save you up to 76% or 330 dollars per year in energy costs compared to a standard …Heat pump water heaters are also commonly referred to as Hybrid Electric water Heaters. Different name - same ultra-efficient performance! Just look for the ENERGY STAR label. …Dec 25, 2022 · A heat pump water heater uses a heat pump to heat water for home use. It can replace traditional water tanks fueled by electricity, gas, propane, or oil, as well as tankless water heaters. Along ... ATLANTA, July 18, 2022 /PRNewswire/ -- Rheem®, a leading global manufacturer of water heating and HVACR products, is launching two versions of the 120-Volt ProTerra® Plug-in Heat Pump Water Heater.American® Electric Heat Pump Water Heater, the best water heater on the market that employs heat pump water heater technology to pull ambient heat in from ...Our Heat Pump Water Heater uses R290 which has a global warming potential (GWP) of 3. Many heat pumps use R134A. R290 has a global warming potential that is 476 times lower than R134A. As many refrigerants are strong greenhouse gases, ...Feb 10, 2023 · A heat pump water heater can be up to 3 times more efficient than a traditional electric water heater and up to 50% more efficient than a natural gas water heater, according to the U.S. Department of Energy and an analysis by ENERGY STAR (3, 4). Heat pump water heaters do not generate direct heat. Instead, they pull heat that is already present from the air. This process alone renders heat pump water ... Noise level 57dbA. The noise level of the heat pump hot water system compressor. Compressors can sometimes be noisy and shouldn't be installed too close to neighbouring properties or bedroom windows. 40dBA is a equivalent to a whispered conversation, whereas 60dBA would be an average conversation level. • for water heating.Heat Pump Water Heaters make the same hot water using 70% less energy than standard electric water heaters. • Provides hot water using 1/3 the electricity and at 1/3 the cost than conventional electric water heaters. How does it work? • A Heat Pump Water Heater works like a refrigerator in reverse. It uses the same 4 models: 200 & 270lt capacity with or without and internal coil. Compatible with photovoltaic (PV) Smart energy function selects the most efficient energy source. View product. Air-to-water heat pumps transfer heat from outside (air) via a compressor to heat or cool a property. It can also be used for the production of hot water.4 models: 200 & 270lt capacity with or without and internal coil. Compatible with photovoltaic (PV) Smart energy function selects the most efficient energy source. View product. Air-to-water heat pumps transfer heat from outside (air) via a compressor to heat or cool a property. It can also be used for the production of hot water.Learn how heat pump water heaters work, the components, types, costs and benefits of this high-efficiency technology. Find out if it's worth it for your home …The Rheem ® ProTerra ® heat pump water heaters delivers savings when you buy — in the form of available government and utility rebates — and also with big energy cost savings. Because the ProTerra draws heat energy from the air and produce zero emissions, it is helping save the planet. These products meet a stringent set of our internally ...There are some parts that tend to go bad on hot water heaters, including heating elements on electric water heaters and fuel valves on gas water heaters. Plumbing supply stores tha...Our Heat Pump Water Heater uses R290 which has a global warming potential (GWP) of 3. Many heat pumps use R134A. R290 has a global warming potential that is 476 times lower than R134A. As many refrigerants are strong greenhouse gases, ...Feb 6, 2024 · Since heat pumps can be less efficient in extremely cold weather, the idea is to offset the difference by using fossil fuels to help get the room up to a temperature where the heat pump can ... Point of Use (POU) Water Heaters; When Should You Replace Your Water Heater; Demand Hot Water Recirculating System; Heat Pump Water Heater Fact Sheet (PDF, 69KB) Gas Water Heater Fact Sheet (PDF, 83KB) How It Works — Solar Water Heaters; How It Works — Whole-Home Gas Tankless Water Heaters; How It Works — High …A recirculating pump is an option designed to keep hot water constantly flowing through your tankless water heater system, using a crossover valve and line. By using the crossover valve option, it eliminates the need to wait for the water line to heat up, saving you precious time and reducing unnecessary water wastage.A compact unvented hot water heater with storage tank in either 10 litres or 15 litres. Suitable for sinks only. Heat pump: available with the Dalis Pro. An air source heat pump, designed for energy-efficient production of domestic hot water. Either 200 litres or 260 litres, an include an optional heat exchanger for connection to solar/PV.A heat pump water heater can save a household of four people around $330 a year on electric bills, according to the Environmental Protection Agency. That adds up to a savings of around $4,000 to ...Shop A.O. Smith Signature 900 50-Gallon Tall 10-year Limited Warranty 4500-Watt Double Element Electric Water Heater with Hybrid Heat Pump at Lowe's.com. A. O. Smith Signature 900 Series 50 Gallon tall high efficiency hybrid electric heat pump Water Heater is designed to provide efficient and reliable hot waterHeat pump hot water systems comparison. Buy smarter with CHOICE membership. Join CHOICE. Or Learn more. Reviews and ratings you can trust. Easy side-by-side …The SANCO2 warms the water up to 176°F at a rate of 20 Gallons per Hour. The product has three different sized tank options, with a giant 119-gallon tank costing just under $5,000. Daikin Altherma is another company offering a split system heat pump that also provides water heating. HEAT PUMP TECHNOLOGY. Electric heat pump water heaters use electricity to move heat from one place to another. Like an air conditioner in reverse, heat is pulled from the ambient air and transferred into the water inside the tank. In addition to heating water, it also cools and dehumidifies the surrounding air. If you can service your hybrid heat pump water heater yourself, you can realize these annual savings in real cash. However, you’ll likely see no realized yearly savings if you hire out the service to a technician at $50-$100 per hour. Ultimately, only you can decide what is suitable for you and your family.Page couldn't load • Instagram. Something went wrong. There's an issue and the page could not be loaded. Reload page. 270 likes, 19 comments - risingerbuild on March 18, 2024: … This type of water heater is designed to provide an adequate supply of hot water without running out when adequately sized. Heat pump water heaters move heat from one place to another instead of generating heat directly for providing hot water, resulting in high efficiencies and significant cost savings. In that scenario, the $2,000 credit for the heat pump could be combined with tax credits up to $600 total for the windows/skylights plus $500 for two or more doors. If you replace your water heater the following year, you would be eligible for another 30% tax credit, up to $2,000 plus up to $600 if you need an electric panel upgrade to ... Similarly, you could combine a heat pump installation with window/door replacements. In that scenario, the $2,000 credit for the heat pump could be combined with tax credits up to $600 total for the windows/skylights plus $500 for two or more doors. If you replace your water heater the following year, you would be eligible for another 30% tax ...Multifamily · Heat your building's water twice as efficiently as standard electric water heaters · Save 25-50% on your building's electric water-heating costs...A hybrid electric water heater is an exception, since the design of this water heater allows it to achieve significantly better efficiency ratings when compared to most electric water heaters. As a case-in-point, the A.O. Smith Electric Water Heater with Hybrid Heat Pump has a 3.42 UEF rating that tops the energy efficiency of any other water …Feb 10, 2023 · A heat pump water heater can be up to 3 times more efficient than a traditional electric water heater and up to 50% more efficient than a natural gas water heater, according to the U.S. Department of Energy and an analysis by ENERGY STAR (3, 4). In Australia, heat pump water heaters (HPWH) comprise approximately 3% of water heaters in use. Aside from the above-mentioned, heat pumps can also be used in industrial applications such as process cooling/heating, boiler feed water preheating, drying, pasteurization, and washing processes.Feb 28, 2022 · Heat Pump: Heat pump water heaters use electricity to move heat from one place to another instead of generating heat directly. To move the heat, heat pumps work like a refrigerator in reverse. Lasts about 10-15 years. Can be 2 to 3 times more energy efficient than conventional electric resistance water heaters. Heat pump water heaters account for around 20% of new water heater sales in my state of Oregon and about 60% of sales in Maine, yet people haven’t heard of them in many places. This presents a ...With the rising costs of energy and the increasing concern for environmental sustainability, homeowners are constantly seeking ways to optimize their energy usage while also saving...May 12, 2014 · The small heat pump located on top of the tank on a heat pump water heater extracts heat from the surrounding air to create hot water. (Source: ENERGY STAR 2023 ) Heat pump water heaters operate as “hybrid” devices – i.e. they use the heat pump whenever possible, but built-in controls switch to conventional resistance heating when there ... Learn how heat pump water heaters use electricity to heat water more efficiently than conventional electric resistance water heaters. Find out the types, benefit… In that scenario, the $2,000 credit for the heat pump could be combined with tax credits up to $600 total for the windows/skylights plus $500 for two or more doors. If you replace your water heater the following year, you would be eligible for another 30% tax credit, up to $2,000 plus up to $600 if you need an electric panel upgrade to ... Homemade Solar Water Heaters - Homemade solar water heaters can help you save money for more important matters. Visit HowStuffWorks to learn all about homemade solar water heaters....An air-source heat pump can provide efficient heating and cooling for your home. When properly installed, an air-source heat pump can deliver up to three times more heat energy to a home than the electrical energy it consumes. This is possible because a heat pump transfers heat rather than converting it from a fuel like combustion heating ... HEAT PUMP TECHNOLOGY. Electric heat pump water heaters use electricity to move heat from one place to another. Like an air conditioner in reverse, heat is pulled from the ambient air and transferred into the water inside the tank. In addition to heating water, it also cools and dehumidifies the surrounding air. To understand the concept of heat pumps, imagine a refrigerator working in reverse. While a refrigerator removes heat from an enclosed box and expels that heat to the surrounding air, a HPWH takes the heat from surrounding air and transfers it to water in an enclosed tank. During periods of high hot water demand, HPWHs switch to standard ... For example, an electric heat pump water heater typically is more energy efficient than an electric conventional storage water heater. Also, an electric heat pump water heater might have lower energy costs than a gas-fired conventional storage water heater, even though local natural gas costs might be lower than the electricity rates.The Hubbell Model PBX Heat Pump Water Heater can pull heat out of air as cool as 40°F, and if it cannot provide enough heating capacity to meet demand, the water heater includes back-up resistive heating elements to ensure the unit provides sufficient hot water.If a heat-pump water heater is installed in a very small room — a closet or a tiny mechanical room, for example — the room can get so cold that the heat pump can’t operate properly. That’s why the manufacturers of heat-pump water heaters dictate the minimum volume (generally, 1,000 cubic feet) of the room in which this type of appliance …The Residential Heat Pump Water Heater (HPWH) Qualified Products List (QPL) contains information on Residential HPWH products that meet the Advanced Water Heating Specification requirements. These products are found in Single Family or low rise multifamily (in residential dwelling units). The list also indicates if the listed product qualifies ...In that scenario, the $2,000 credit for the heat pump could be combined with tax credits up to $600 total for the windows/skylights plus $500 for two or more doors. If you replace your water heater the following year, you would be eligible for another 30% tax credit, up to $2,000 plus up to $600 if you need an electric panel upgrade to ... A water heater’s UEF can only be compared with water heaters within the same bin. The higher the uniform energy factor, the more efficient the water heater. However, higher energy factor values don't always mean lower annual operating costs, especially when you compare fuel sources. Product literature from a manufacturer usually provides a ... May 12, 2014 · The small heat pump located on top of the tank on a heat pump water heater extracts heat from the surrounding air to create hot water. (Source: ENERGY STAR 2023 ) Heat pump water heaters operate as “hybrid” devices – i.e. they use the heat pump whenever possible, but built-in controls switch to conventional resistance heating when there ... Location: Heat pump water heaters need space. They work best in locations with temperatures between 40°F and 90°F. Places like basements or garages can be ideal. Plumbing and Electrical Configurations: Ensure that your home's plumbing and electrical systems are compatible with the heat pump model you choose. Energy … To understand the concept of heat pumps, imagine a refrigerator working in reverse. While a refrigerator removes heat from an enclosed box and expels that heat to the surrounding air, a HPWH takes the heat from surrounding air and transfers it to water in an enclosed tank. During periods of high hot water demand, HPWHs switch to standard ... Here's a quick summary of what a heat pump water heater is, and how heat pump water heaters work. Skip to content. Products. Gas Products Electric Products All Products Gas Products i200 i250 i Series. iN199 iN401 iN501 Neuron Series. iQ251 iQ251D iQ Wall Series. iQ751 iQ1001 iQ1501 iQ2001 ...A recirculating pump is an option designed to keep hot water constantly flowing through your tankless water heater system, using a crossover valve and line. By using the crossover valve option, it eliminates the need to wait for the water line to heat up, saving you precious time and reducing unnecessary water wastage.Switching to a more energy efficient hot water system will help you reduce the amount of energy and water you use. This means you can expect to see long-term cost savings on your bills. Using a more energy efficient hot water system will also help you lower your environmental impact. This incentive is part of the Energy Savings Scheme.Learn how heat pump water heaters use electricity to heat water more efficiently than conventional electric resistance water heaters. Find out the types, benefit…If you’re in the market for a heat pump, you’ve probably come across the Evoheat Evo270. Known for its energy efficiency and reliable performance, this heat pump is a popular choic...A heat pump water heater can save a household of four people around $330 a year on electric bills, according to the Environmental Protection Agency. That adds up to a savings of around $4,000 to ...A. O. Smith's Signature® 900 Series 66-gallon smart hybrid electric heat pump water heater provides efficient and reliable hot water for 5+ person ...The price to purchase a pool heat pump varies depending on size but you can expect to pay between $2,000-$4,500 for a top rated pool heat pump. In addition to the purchase price you should budget $400-$500 for installation by a certified pool technician. The cost to service a heat pump is similar to electric and gas heaters, you might find our ...Conclusion. Breaking Down Heat Pump Water Heaters. Heat pump water heaters are a great green technology that utilize the ambient air to help heat the water. …Heat pump water heaters can either be purchased as integrated units with build-in water storage tanks, or as an add-on that can be retrofitted to an existing water heater tank. Australian Hot Water is able to help you determine if a heat pump water system is a suitable and cost-effective option for your property.Hot water heat pumps are particularly effective because they use approximately one-third the electricity of a traditional electric storage water heater to produce the same amount of hot water. The actual savings for your household would depend on the specific details of your situation, including the size and efficiency of the heat pump installed, your local … • for water heating.Heat Pump Water Heaters make the same hot water using 70% less energy than standard electric water heaters. • Provides hot water using 1/3 the electricity and at 1/3 the cost than conventional electric water heaters. How does it work? • A Heat Pump Water Heater works like a refrigerator in reverse. It uses the same Heat pump water heaters (HPWHs) are highly efficient. They use thermodynamics and electricity to extract heat from the surrounding air and transfer it to your hot water tank. Unlike gas and fossil fuel heaters, heat pumps use ambient temperature to heat water, saving 70% or more on energy costs. This article will provide …The cost to install a heat pump ranges from $1,500 to $20,000, with an average price of $10,750. The higher end of this price range assumes additional contract work, such as excavation in the case ...Enviroflo Heat Pump. Energy Efficient. Environmentally Focused. Quiet Operations. Perfect for replacing an electric system. 1000 kPa maximum water pressure rating. Class leading weight for easy handling and installation. 250L and 315L capacities available. Australian designed and built with a high level of product quality. Our most technologically advanced heat pump water heater! You’ll get all the standard AeroTherm ® Series features plus the ability to turn your heat pump water heater into a smart, connected appliance you can control with your phone. With the Bradford White Connect™ app, you can: Adjust temperature settings. Set daily or weekly schedules. A recirculating pump is an option designed to keep hot water constantly flowing through your tankless water heater system, using a crossover valve and line. By using the crossover valve option, it eliminates the need to wait for the water line to heat up, saving you precious time and reducing unnecessary water wastage.Jan 27, 2023 · And because the heat pump is on top, a hybrid water heater needs as much as 7 feet of clearance from floor to ceiling. You’ll also need up to 1,000 cubic feet of uncooled space to capture enough ... HEAT PUMP WATER HEATER. Ever worried about the wastage of energy when you turned on your electric water heater ? Ever wondered if the water in your heater is enough for your bath ? Well, with the all –new Havells Heat Pump ; you can let go of all these worries and just get down to enjoying your Bath. Heat Pump comes with the capacity to ... Gree Integrated Heat Pump Water Heater is a smart water supply for saving energy with complete functions. Fashionable product is reliable and durable.Racold’s heat pump water heaters with their quick heating technology, save up to 70% power. A heat pump water heater is the most advanced water heating solution with a reverse Carnot-cycle that uses a refrigerant to trap the heat from the air, which is then transferred to the water inside the heat pump, thus heating the water. 150 L Capacity.There are several incentives for heat pump water heater installation you can take advantage of in California. Inflation Reduction Act energy efficiency tax credit - Get a federal tax credit worth 30% of your heat pump water heater installation costs, up to $2,000. SMUD heat pump water heater rebates - Save up to $3,000 on heat pump …13 Apr 2020 ... In a hot climate, it is best practice to place the heat pump indoors. This way, it will pull heat from inside the house and use it to heat the ... The residential heat pump range was developed to integrate with any existing residential hot water geyser in the South African market. Our energy efficient residential heat pump range can therefore be installed without and expensive replacement costs or changes to the existing hot water system. There’s a residential heat pump in our range ... Water heaters can come as storage tanks, tankless, heat pump, solar and condensing types. Water heaters use a variety of fuel sources, including electric, gas, solar and geothermal. Storage Tank

Heat pump water heaters (HPWHs) are similar to heat pumps for space heating, except they produce hot water instead of hot air. In other words, HPWHs use electricity to pull heat from the surrounding air and transfer it into a hot water tank. Like heat pumps, HPWHs transfer heat instead of creating it, leading to efficiency gains, utility bill .... Party with pizza

water heater with heat pump

Heat pump water heaters (HPWHs) are an energy-efficient alternative to electric-resistance water heaters. Instead of heating water stored in a tank by running electrical current through resistors (i.e., the electric water heater elements), HPWHs use a vapor-compression refrigerant cycle ...A heat pump water heater provides hot water for bathrooms by warming up the contents of a hot water cylinder or tank. What sets it apart from other types of heat … • for water heating.Heat Pump Water Heaters make the same hot water using 70% less energy than standard electric water heaters. • Provides hot water using 1/3 the electricity and at 1/3 the cost than conventional electric water heaters. How does it work? • A Heat Pump Water Heater works like a refrigerator in reverse. It uses the same Compare the LG 24,000 BTU model to the smaller 7,500 BTU device to see what I mean. The higher-BTU device can heat a space of 1,440 square feet. The 7,500 BTU AC, on the other hand, is rated for no more than 220 square feet. TL;DR: Make sure the heating or cooling BTU is sufficient for the coverage area of your space.Hot water heat pumps are particularly effective because they use approximately one-third the electricity of a traditional electric storage water heater to produce the same amount of hot water. The actual savings for your household would depend on the specific details of your situation, including the size and efficiency of the heat pump installed, your local …Dec 2, 2021 · A standard electric water heater has a UEF of about 0.9, making my HPWH about 4.1 times as efficient. Instead of 501 kWh per year, I would have used about 2000 kWh per year with an electric-resistance water heater. At $0.10 per kWh, I would have saved about $150 per year on water heating. Our Arctic Series Cold Climate Heat Pumps are both the most advanced and cost effective air source heat pump on the market, with the ability to heat your home, office, shop, and pool/hot tub. Contact. 1-866-800-8123. Configure ... Heat Pump Water Heaters; Radiant Floor Cooling; Analysis of Heat Pumps Popularity Growth; Air to Water Heat Pump ...You’ll need a 0.75-inch gas line for sufficient gas supply. Rinnai’s RU199iN model tops our list for the best tankless water heater in the condensing category. Although it’s quite pricey, it has a high flow rate of up to 11 GPM for running multiple fixtures and appliances at once and a powerful 199,000 BTU.If you’re in the market for a heat pump, you’ve probably come across the Evoheat Evo270. Known for its energy efficiency and reliable performance, this heat pump is a popular choic...9 May 2023 ... Energy Efficiency. Daalderop's heat pump technology enables significant energy savings, helping you reduce your carbon footprint and lower ...A. O. Smith's Signature® 900 Series 66 Gallon tall high efficiency hybrid electric heat pump Water Heater is designed to provide efficient and reliable hot water for households with 3 to 4 people when sized appropriately. A. O. Smith Signature® 900 heat pump water heaters can save you up to 76% or 330 dollars per year in energy costs compared to a standard …Although heat pump hot water systems are more expensive to buy than conventional electric hot water systems, they’ll help to save you over the long run. Heat pump hot water systems cost roughly $3000-$4000 not including installation. On the other hand, electric hot water systems typically cost between $1000-$2000, including labour and materials.A water heater is a device that heats and stores water for various household activities, such as bathing, cooking, and cleaning. Without a functioning water heater, …In general, a heat pump water heater should be installed in a location that is accessible for maintenance & repair and where it can operate efficiently. This may include a basement, utility room, or garage. If the water heater is installed outside, it must be protected from the elements and extreme temperatures, which can affect its performance ...A car’s heater does not generate heat if the coolant level is low or restricted by buildup, if the water pump failed or if the thermostat is broken. The heater fan is also sometime...Savings based on the estimated annual operating cost of a standard 50-gallon electric tank water heater using 3531 kWh per year vs. the 50-gallon, 3.43 UEF AeroTherm® heat pump water heater using 947 kWh per year and national average electricity rate of 14 cents per kWh. For FTC guide information, please visit www.ahrinet.org.Introducing the Rheem ProTerra Plug-in Heat Pump Electric Water Heater. Like the Rheem Proterra models, this 65 gallon model is known for its high efficiency. The ProTerra Plug-in was created to make it easier to replace your natural gas …HPHE10250H045DVN - ProLine® XE 50 Gallon Residential Hybrid Electric Heat Pump Water Heater - 10 Year Warranty. Features; Tech Specs; Product Literature; The Hybrid Electric heat pump water heater from American is the most cost effective energy-efficient option available for consumers who want to save money on their utility bills. ...Heat pump water heaters (HPWHs) are an energy-efficient alternative to electric-resistance water heaters. Instead of heating water stored in a tank by running electrical current through resistors (i.e., the electric water heater elements), HPWHs use a vapor-compression refrigerant cycle ....

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