Dig into the reasons why heat pump water heaters are the most efficient, most comfortable option on the planet.
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Time to upgrade your water heater?
If your water heater is getting up in ageor if its been running out of hot water before your shower is even finishedits time to start shopping around.
Well, youve found the right place.
In this heat pump water heater buying guide, youll get all the details on how and why theyre the best water-heating option for the vast majority of homes.
At Sealed, were home energy experts, and we LOVE heat pump water heaters.
Not to mention, there are plenty of tax incentives and rebates for heat pump water heaters (because theyre that good at cutting energy waste).
When you work with Sealed, well handle the paperwork so that you receive all eligible rebates. Learn more.
This is meant to be a comprehensive list of resources, so theres a lot in here.
Use the table of contents below to jump ahead:
For those of you who are late for a date with destiny, heres a quick glance at heat pump water heaters:
What is a hybrid water heater?
A hybrid water heater is also a heat pump water heater. Its a type of residential water heating appliance that operates on a combination of heat pump and electric resistance technology.
How much does a hybrid water heater cost?
These appliances dont come cheap. The appliance itself costs anywhere between $1,500 and over $3,000 depending on tank size, but that number doesnt include the cost of professional installation or any electric panel upgrades that may be required.
Tap here for more heat pump water heater cost considerations. By the way, Sealed can help you make your home more comfortable and energy efficientand that includes getting you eligible rebates on heat pump water heater upgrades, and connecting you to a highly vetted, expert contractor. Find out how.
How efficient are hybrid water heaters?
Theyre the most efficient way to heat water for residential useup to 3 times more efficient than traditional water heating methods of the past (1). More on exactly why and how below.
How do you size a hybrid water heater?
Sizing a new water heater is a job best left to the professionals. We asked our team of experts, and as a general guideline, a 50 gallon tank can be enough for 3 to 4 people. But if your household schedule requires using a lot of hot water at the same time, a 65 gallon tank may be the better option. Alternatively, a 50 gallon tank could be enough for 5 people that space their hot water use out a bit more. Consult a pro regarding the best fit for your hot water usage patterns.
Okaynow that youve been through the cheat sheetfor those of you who are ready to dig into the details (and impress your friends with sciencey water-heater knowledge), lets get started.
Okay, so if youre curious what all the buzz is about: A heat pump water heateralso sometimes referred to as a hybrid water heateris a type of home water heating system that uses a small amount of electricity to move heat from the ground (if youre using a geothermal heat pump) or the air to heat the water.
By far, heat pump water heaters are the most efficient way to create hot water at home. They blow other domestic water heating methods out of the water (pun intended, of course).
In the past, natural gas water heaters were more popular because, well, natural gas used to be a fairly cheap home heating fuel.
But as the cost of natural gas has increased over timeand now that we know more about the harmful effects gas has on indoor air quality and how it can contribute to increased health costsmore homeowners are opting into going fully electric (2).
Nearly 20% of the average households energy consumption is used on water heating alone.
And we cant go without mentioning this: Heat pump water heaters are better for the health of the planet, too. They have a lower carbon footprint because they use less energy to heat up the water in your house.
Thats good for everyoneincluding you, your utility bills, and future generations.
But how are they so efficient? Well, were glad you asked
A heat pump water heater is more energy efficient than a traditional electric resistance water heater or natural gas water heater because it doesnt have to work as hard to create heat.
Heat pumps work by moving existing heat from one place to another, rather than using energy to generate new heat.
If you have an air-source heat pump water heater, it pulls heat energy from the air (yes, even in cold weather!) to the appliance to generate hot waterthat way, you can enjoy washing your dishes, cleaning your clothes, and then get in a good, hot shower after a long day of chores.
And if you have a geothermal heat pump water heater? It moves heat energy from the ground outside to the appliance to create hot water.
(Read more about geothermal vs. air source heat pumps here to understand which type might be best for your house.)
For a super-detailed guide on how modern heat pump technology works, check out the Sealed Ultimate Guide to Heat Pumps.
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).
Well say this a bit louder for those who are scrolling fast:
Nearly 20% of the average households energy consumption is used on water heating alone, so conserving energy for this daily task can make a big difference (5).
How much electricity your new heat pump water heater will use or save overall depends on:
Hybrid heat pump water heaters can be up to 50% more efficient than natural gas water heaters.
ENERGYSTAR.gov
For most people looking to switch to a heat pump water heater, a hybrid water heater is probably the best bet, and youre about to learn exactly why.
A hybrid water heater is incredibly similar to a heat pump water heaterso much so that the terms are often used interchangeablybut theres one big difference.
Hybrid water heaters are a type of domestic water heater that use a combination of methods to keep your water warm.
A hybrid model has two technologies built into one appliance:
There are air source heat pump water heaters that can be connected to standalone outdoor condensers, too, but theyre not as common.
Overall, this combo-approach allows a hybrid water heater to switch to the heating method that will work most efficiently when neededwhich also makes it a lot smarter than other water heater models, in our opinion.
On the other hand, a heat pump water heater that doesnt offer a hybrid approach uses air-source or geothermal heat pump heating without an electric heating element backup.
So a non-hybrid type of water heater is best suited for warm or hot climates and households that use less hot water overall.
In fact, non-hybrid heat pump water heaters are used fairly rarely, which is why the phrases hybrid water heater and heat pump water heater are often used to refer to the same thing.
If youre still wondering Whats the difference between a conventional water heater and a heat pump water heater? its a valid question.
If you have an electric water heater, your water is heated by electric resistance heator elements that use electricity to heat up the water stored in the tank. (And if you have a hybrid heat pump water heater, you have this backup water-heating system automatically in place.)
Alternatively, natural gas water heaters burn fossil fuel (i.e., natural gas) in your home appliance to heat water thats stored in the tank. The burner is usually located at the bottom of the tank, and the heat created by the burner is transferred to the water.
If you have a natural gas water heater with a storage tank, the hot water is stored and transported throughout your home through hot water pipes as needed.
But as cold water enters the tank to refill it, the burner kicks back on to reheat the stored water to the desired temperature, causing it to kick on more often and use more fuel.
If you have a tankless water heater, it heats your water on-demand only when its needed.
As water flows through the tankless unit, the gas burner heats it up before its carried to your kitchen, bathroom, or laundry room.
Tankless water heaters have been the talk of the town in recent years due to their increased efficiency when compared to storage tank natural gas water heaters.
But heres a surprising fact: Tankless natural gas water heaters are still not as efficient as heat pump water heaters!
(And they often arent as comfortable as a hybrid water heater either. This writer found out the hard way when visiting a home with a tankless water heater and jumping into an ice-cold shower after leaving the hot water warming up for five minutes.)
Tankless gas water heaters can increase your water-heating efficiency up to 34% max, while heat pump water heaters can increase your efficiency up to 50%.
Energy.gov and ENERGYSTAR.gov
Wondering what type of hybrid heat pump water heater could be the best option for you?
Generally, weve found a 240v hybrid air source heat pump water heater is a smart choice.
This type of hybrid model works best in a variety of climates and produces cozy, reliable hot water year round. It can run on electric resistance mode or heat pump mode, depending on which is the most efficient any given day.
Some of the most trusted, best heat pump water heater brands include:
However, every house, climate, and household is different, so its best to get professional input on which model or brand is best for your situation.
With competitive price and timely delivery, OUTES sincerely hope to be your supplier and partner.
Expert contractors are an excellent source of knowledge and often carry specific brands or models for good reason.
Okay, so now that you have a better understanding of how heat pump water heaters work when compared to traditional water heaters or tankless systems, lets tackle an important question that often comes up.
If heat pumps use heat energy from the atmosphere to warm up your water, what happens in the winter?
In a colder climate, heat pump water heaters have to work harder to extract heat energy from the air or ground.
So if you live in Buffalo, New York, unfortunately, your heat pump water heater has to do a little more work than if it lived in Key West, Florida, year round.
(Although, you could consider taking your heat pump water heater on a tropical vacation to give it a break every now and again.)
Okay, jokes aside: What if you do live in Buffalo, New York? Does your water heater stop working in the winter?
Nope. And heres why: The backup heating element in your hybrid water heater kicks on and keeps your water hot and cozy on a very cold winters daywhile still using less energy on average than a traditional water heating system.
That way, you can enjoy a long, hot shower after shoveling snow from the driveway with zero guilt and hot water still left over.
And what if you heat your entire home with a heat pump? (You can, you know!)
Cold climate heat pumps are designed to operate as reliably and comfortably as ever in colder temps, so not to worry.
Read What temperature does a heat pump stop working? to learn why heat pump home heating is reliableeven in a Montana winter.
With a heat pump water heater, you can enjoy a long, hot shower after shoveling snow from the driveway with zero guilt and hot water still left over.
Yes, heat pump water heaters are worth it in cold climates. Modern heat pump water heaters are efficient even in cold climate areas.
Like we mentioned above, 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 (6, 7).
Well let that sink in for a minute.
That means you could save up to 50% of your water heating costs when you switch.
Plus, water heating makes up 19% of the average households total energy consumption, so this isnt just spare change (8). And when you have a lot of people in your household, the savings can be higher.
When you live in a cold climate, every penny of your energy-spend counts because winter heating costs can be a beast.
If you live somewhere it gets (and stays) cold, you can make your hybrid water heater even more efficient by installing it in an area that stays warmer in winter and by ensuring you have proper insulation and air sealing throughout your home.
Get insulation and air sealing in your homethey help your HVAC and water heating system work more efficiently year round.
But remember: The majority of heat pump water heaters are hybrid models that include an electric heating coil backup that your water heater automatically switches to when needed.
So youve always got a hot shower, whether you live in Phoenix, Arizona, or St. Paul, Minnesota.
If youre worried about running out of hot water after switching to a heat pump water heater, dont be!
Typically, when a household runs out of hot water, its because they have a water heaterheat pump or otherwisethat is incorrectly sized or is on its last leg and is ready to be replaced.
When a household runs out of hot water, its because they have a water heater thats incorrectly sized or is on its last leg.
A professional home performance contractor can help you get the correctly sized water heater replacement for your household.
Plus, when your hot water heater is correctly sized and professionally installed, you can rest easy knowing youll have plenty of hot water for daily use.
Which leads us to our next tidbit of information
If your water heater is getting up in age, its time to think about making a switch.
Typically, storage tank water heaters last about 10 years at the most, while tankless water heaters can last longer with proper maintenance.
And if your water heater breaks down, you dont want to end up without hot water for weeks while waiting for a new water heater to be installed.
So when your water heater starts showing signs that it will kick the bucket soon, start shopping for a replacement.
Here are a few symptoms of an aging water heater:
With proper maintenance and care, a heat pump water heater (also referred to as a hybrid water heater, remember?) can last up to 15 years on average, and possibly more depending on your household use patterns and appliance maintenance schedule.
Of course, how long your water heater lasts will depend on how much hot water your family uses and if it receives regular care according to the manufacturers directions.
For example, if you have a household of 8 and never perform regular maintenance, it could last significantly less than 15 years.
If you know your water heater is nearing its replacement timeor maybe youre just ready to leave natural gas behind and exchange it for better efficiency and healthier airthere are a few things to consider before you make the upgrade.
Before we jump into the pros and cons of heat pump water heaters, we should clarify: As home energy experts, we are very pro heat pump. In fact, its the only type of water heating system or HVAC system that we install.
(We should also mention here, you can get a brand-new heat pump installed by an expert contractor if you work with Sealedand we help you understand what rebates you may be able to apply to your project costs, too!)
In our experience, weve found that heat pumps are more comfortable, more efficient, and a healthier option for practically almost every household use case.
In our experience, weve found that heat pumps are more comfortable, more efficient, and a healthier option for practically almost every household use case.
However, if you arent sure what type of water heater is the best and most efficient for your house and climate, were happy to talk it through with you.
If a heat pump isnt right for you, thats okay. Were here to help!
So without further adoeven though were very pro-heat pump water heateryoull get both the pros and cons below.
The advantages of installing a heat pump water heater include having:
The cons of installing a heat pump water heater could include the:
Even with the possibility of a slightly shorter lifespan compared to a tankless water heater, hybrid heat pump water heaters are significantly more efficient.
So your new heat pump water heater will often pay for itself sooner and reduce more energy use during its lifetime.
A hybrid heat pump water heater appliance alone can cost up to $3,000, depending on the tank size and appliance features you choose.
And according to one homeowners documented personal experience in Bloomberg, a professional heat pump water heater installation could cost over $8,000, including the appliance costs and inspection fees.
Whats behind the higher costs? Well, a few things, including:
But, dont fret yet! Appliance and installation costs vary based on your location and market availability in your areaand if you work with Sealed, well handle the paperwork to help you get all eligible rebates toward a heat pump water heater.
Plus, because of their superior efficiency, hybrid heat pump water heaters are so well-loved by the government and utility providers that there are financial incentives to install them in your home.
And these incentives can do an excellent job at hedging some of those costs!
Hybrid water heaters have plenty of cheerleaders behind their adoptionand thats because conserving energy benefits everyone (even your utility company!), so there are plenty of incentives to help make the switch easier on your budget.
In , the Inflation Reduction Act was signed into law, and it created several new programs for energy-efficient home upgrade incentives. To learn about what home upgrades are included in the new legislation, check out our Homeowners Guide to Inflation Reduction Act Tax Credits and Rebates.
If you qualify to work with Sealed, we can help you understand what federal, state, and utility financial incentives your home energy upgrades may be eligible for.
Thinking of finally making the switch to a heat pump water heater?
We believe upgrading to a more comfortable, more efficient, and healthier home should be simple and easy to pay for, so we designed a better way to do home improvement.
With Sealed, you can get energy upgrades like a heat pump water heater, high-performance insulation, professional air sealing, or a super-efficient heat pump HVAC system from a highly vetted, experienced contractor, and well make sure you receive all eligible rebates.
Ready for a home energy makeover? Complete our easy, quick questionnaire to take the first step.
woodgeek said: Click to expand...
Click to expand...
In a way, a HPWH in an unconditioned basement is sort of like a hybrid geothermal system that also scavenges part of your heat loss through your floor insulation.The flip side of defrosts for an outdoor unit in the winter is that in the summer it benefits from the warmer outside air compared to your basement. There's pros and cons to either of these options, and they depend in part on your climate.You do pay twice in the winter, but only once in the summer (potentially less, see examples), and even in the winter, depending on your source of space heat, you might not be paying anywhere near full price either time.Here's a bunch of napkin math comparisons, assuming 70 deg F (39 deg C) temperature change to your water, where I refer to electric resistance heat as "full price":- Winter or Summer, electric resistance DHW and electric resistance space heat: 0.171 kWh / gal water + 0 kWh makeup space heat =- *Winter, HPWH (2.5 EF) and electric resistance space heat: 0.069 kWh / gal water + 0.171 kWh makeup space heat - 0.069 kWh waste heat =- *Summer, HPWH (2.5 EF) and no heat: 0.069 kWh / gal water + 0 kWh makeup space heat =- **Summer, HPWH (2.5 EF) and air conditioning (10 SEER): 0.069 kWh / gal water - 0.054 kWh makeup cooling =- Winter, HPWH (2.5 EF) and heat pump (9 HSPF): 0.069 kWh / gal water + 0.065 kWh makeup space heat =- ***Winter, HPWH (2.5 EF) and wood stove: 0.069 kWh / gal water + 0.071 "kWh" makeup space heat =* Even if your effective heating season is fully half the year, you still come out slightly ahead averaging these two (0.120 kWh/gal year round), but probably not enough to justify the higher cost. Milder climates do better. Warm climates do great. Edited per Woodgeek's point that the HPWH waste heat either goes into the water, or into the space.** Take note of the minus sign. We paid less than full price to heat the waterpaid less than full price to air condition the house, and now we're at 1/10th the summer baseline cost*** Wood usage compared to electricity usage based on cost @ $200/cord, 20mmBTU/cord burned at 75% efficiency, $0.11/kWhIf I also calculated an example with natural gas heat, it would work out in a similar ballpark to the wood heat example, but if you have natural gas space heat, you probably also have a natural gas water heater, and it will be harder to achieve a cost savings by switching to a HPWH because natural gas is relatively cheap as a heat source.
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