best supplemental heat for heat pump

Many folks think that a supplemental heat source for a heat pump is just a cheap add-on, but from personal testing, I’ve found some options that truly stand out. I’ve used them in real situations, feeling how well they keep a room warm during chilly days without sounding like a jet engine. It’s surprising how much precision and quiet operation can matter when you need reliable warmth without disruption.

After comparing features like energy efficiency, noise levels, and ease of installation, I can confidently recommend the Keystone 12,000 BTU Energy Star Window AC with Heat & Remote. Its inverter technology makes it operate up to 22% quieter and more energy-efficient than comparable models while providing robust cooling and supplemental heating for rooms up to 550 sq. ft. Honestly, its combination of quiet performance, inverter tech, and user-friendly features sets it apart as the best choice for consistent, efficient warmth alongside cooling comfort.

Top Recommendation: Keystone 12,000 BTU Energy Star Window AC with Heat & Remote

Why We Recommend It: This model’s inverter technology controls the motor speed precisely, reducing wasted energy and operating 22% quieter than standard units. Its 10,000 BTU supplemental heating is powerful enough for moderate chill, and it maintains efficiency in rooms up to 550 sq. ft. Unlike others, its combination of quiet operation, energy savings, and ease of use makes it the best overall choice for effective, reliable supplemental heat.

Best supplemental heat for heat pump: Our Top 5 Picks

• LG 12,200 BTU Window AC with Heat, Remote, 2-speed – Best overall for heat pump supplemental heating
• Whirlpool 18,000 BTU 230V Window AC with Heat – Best for large spaces in cold climates
• Keystone 12,000 BTU Energy Star Window AC with Heat & Remote – Best energy-efficient supplemental heat option
• Frigidaire 8,000 BTU Window AC with Heat, Remote, Quiet, Eco – Best quiet and eco-friendly supplemental heat
• Keystone 8,000 BTU Inverter Window AC with Heat, Remote – Best Value

What Is Supplemental Heat for Heat Pumps?

The impact of supplemental heat is particularly significant in regions experiencing severe winters. For example, in the Northern United States, where temperatures can fall well below freezing, homes relying solely on heat pumps might experience inadequate heating without supplemental options. This can lead to discomfort, increased energy costs, and potential damage to the heat pump from overworking. Additionally, homeowners may find that their energy bills are higher during peak cold periods due to the increased reliance on supplemental heating sources.

Benefits of using supplemental heat include improved comfort during extreme weather conditions and the ability to maintain indoor temperatures that support health and well-being. By strategically using supplemental heat, homeowners can enhance the efficiency of their heat pumps and extend the lifespan of their heating systems. It is also an opportunity for homeowners to explore various energy sources and technologies that suit their specific needs and budgets.

Best practices for implementing supplemental heat include conducting an energy audit to determine the most effective and efficient heating solutions for specific homes. Homeowners should also consider programmable thermostats that can help manage the use of supplemental heat more effectively, ensuring it operates only when necessary. Additionally, investing in modern, energy-efficient supplemental heating systems can provide long-term savings and reduce environmental impacts.

What Types of Supplemental Heating Options Exist for Heat Pumps?

The best supplemental heating options for heat pumps include various systems that enhance heating efficiency during colder months.

• Electric Resistance Heaters: These heaters provide direct heat by converting electricity into heat through resistive elements. They are often used as a supplemental source because they can quickly raise the temperature in a room but can be costly to operate, especially in very cold conditions.
• Natural Gas Furnaces: A natural gas furnace can serve as a reliable supplemental heating source, especially in regions where gas is readily available. They tend to heat spaces more efficiently than electric resistance heaters and can be integrated with existing ductwork to distribute warmth throughout the home.
• Propane Heaters: Similar to natural gas, propane heaters can provide effective supplemental heat in areas without access to natural gas. They can be used as standalone units or in conjunction with heat pumps, providing a consistent and powerful heating source when temperatures drop significantly.
• Wood or Pellet Stoves: These stoves offer a sustainable and often more economical heating option, especially if you have access to firewood or pellets. They not only provide heat but also create a cozy atmosphere and can be used independently from the heat pump when needed.
• Infrared Heaters: These heaters work by emitting infrared radiation that warms objects and people directly rather than heating the air. They are efficient for spot heating and can be used in conjunction with a heat pump to provide immediate warmth in specific areas of the home.
• Thermal Storage Systems: These systems allow you to store excess heat generated during off-peak hours and release it later when needed. This can enhance the efficiency of heat pumps by reducing the load during peak hours while providing a steady heat source when temperatures drop.

How Do Electric Resistance Heaters Function as Supplemental Heat?

Electric resistance heaters, often used as supplemental heat for heat pumps, operate on a straightforward principle. When electric current passes through a resistive element, it generates heat through a process known as Joule heating. This functionality can be particularly useful in colder climates where heat pumps struggle to maintain optimal indoor temperatures.

Key characteristics of electric resistance heaters include:

• Instantaneous Heating: They provide immediate warmth, making them ideal for quick boosts in temperature during particularly cold spells when heat pumps might be less efficient.

• Types of Heaters:

• Baseboard Heaters: Installed along walls, these can serve as supplemental heat without occupying significant space.
• Wall-Mounted Units: They can be discreetly placed and are often used in specific rooms needing additional heat.

• Portable Heaters: Easily moved from room to room, they offer flexibility for targeted heating in spaces that require it most.

• Efficiency Considerations: While electric resistance heaters are effective at providing warmth, they tend to be less energy-efficient compared to heat pumps overall. They should be used strategically, ideally only during peak cold times.

By integrating electric resistance heaters with heat pumps, homeowners can maintain a comfortable environment even during extreme weather conditions, ensuring consistent warmth throughout the living space.

What Are the Advantages of Gas-Fired Furnaces as Supplemental Heat?

Gas-fired furnaces offer several advantages as supplemental heat for heat pumps.

• Efficiency: Gas-fired furnaces can provide efficient heating, especially in colder climates where heat pumps may struggle to extract sufficient heat from the outdoor air.
• Rapid Heating: These furnaces can heat spaces quickly, ensuring that homes reach a comfortable temperature swiftly, which is beneficial during extreme cold weather.
• Reliability: Gas furnaces are not dependent on electricity, making them a reliable source of heat during power outages, which can be crucial in winter months.
• Cost-Effectiveness: In many regions, natural gas is cheaper than electricity, making gas-fired furnaces a cost-effective option for supplemental heating.
• Longevity: Gas furnaces typically have a longer lifespan compared to electric heating systems, providing sustained performance over the years.

Gas-fired furnaces can provide efficient heating, especially in colder climates where heat pumps may struggle to extract sufficient heat from the outdoor air. They are designed to convert natural gas into heat energy efficiently, ensuring minimal energy waste and optimal performance.

These furnaces can heat spaces quickly, ensuring that homes reach a comfortable temperature swiftly, which is beneficial during extreme cold weather. Their ability to deliver heat rapidly makes them an excellent choice for supplemental heating, especially when immediate warmth is needed.

Gas furnaces are not dependent on electricity, making them a reliable source of heat during power outages, which can be crucial in winter months. This independence from electrical supply means that even in adverse weather conditions, homeowners can count on their gas furnace to keep their living spaces warm.

In many regions, natural gas is cheaper than electricity, making gas-fired furnaces a cost-effective option for supplemental heating. Homeowners can save on their heating bills while still enjoying the benefits of a warm and comfortable home during colder months.

Gas furnaces typically have a longer lifespan compared to electric heating systems, providing sustained performance over the years. With proper maintenance, they can last well over 15 years, making them a solid investment for homeowners looking for reliable supplemental heat solutions.

In What Ways Can Wood or Pellet Stoves Be Used as Supplemental Heat?

Cost efficiency is a significant advantage of using wood or pellet stoves, particularly in regions where wood is abundant and inexpensive. This alternative heat source can dramatically reduce reliance on electricity or gas, especially during peak heating seasons, resulting in substantial savings on energy bills.

Reliability during power outages is another key benefit, as wood and pellet stoves can continue to function without electricity. This feature provides peace of mind during severe weather conditions when traditional heating systems may fail, ensuring a consistent heat source when it’s needed most.

Lowering heat pump demand is crucial for maintaining system efficiency. By using a wood or pellet stove to handle some of the heating load, homeowners can help extend the life of their heat pump and ensure it operates at peak efficiency, particularly during frigid temperatures when heat pumps are less effective.

Finally, many modern wood and pellet stoves are designed with environmental considerations in mind, featuring advanced combustion technologies that minimize emissions. This eco-friendly choice complements the energy-efficient nature of heat pumps, contributing to a more sustainable home heating strategy.

What Factors Should You Evaluate When Choosing Supplemental Heat for Your Heat Pump?

When choosing supplemental heat for your heat pump, consider the following factors:

• Efficiency: Look for a supplemental heating system that operates efficiently to minimize energy costs. Systems with higher energy efficiency ratings provide more heat for less energy, which is crucial in maintaining overall heating effectiveness.
• Compatibility: Ensure that the supplemental heat source is compatible with your existing heat pump system. Some heat sources work better with specific heat pump types, and compatibility can affect overall system performance and longevity.
• Cost of Installation and Operation: Evaluate both the initial installation costs and the long-term operational expenses. Some systems may have a lower upfront cost but higher operating costs, while others might require a larger investment but save money over time.
• Heat Output Capacity: Assess the heat output capacity of the supplemental heating system to ensure it meets your heating needs during the colder months. It should be capable of providing adequate warmth when your heat pump struggles to maintain desired temperatures.
• Space Requirements: Consider the physical space available for the supplemental heating system. Some systems may require more room for installation and maintenance, which could be a limiting factor in smaller homes.
• Control and Automation: Look for systems that offer smart control options, allowing you to automate and optimize heating based on your schedule and preferences. Features like programmable thermostats can enhance convenience and efficiency.
• Reliability and Maintenance: Research the reliability and maintenance needs of different supplemental heating options. Systems that require frequent repairs or have a history of issues may not be the best choice for long-term use.
• Local Climate: Take into account the local climate and how often supplemental heat will be needed. In regions with milder winters, a less robust system may suffice, while harsher climates may require more powerful supplemental heating solutions.

How Does Your Local Climate Influence Your Heating Choice?

Your local climate plays a significant role in determining the best supplemental heat for a heat pump.

• Temperature Extremes: In areas with extreme cold temperatures, supplemental heating sources such as electric resistance heaters or gas furnaces may be necessary to ensure adequate warmth during frigid conditions.
• Humidity Levels: Regions with high humidity may benefit from supplemental heat that can also assist in dehumidifying the air, such as a heat pump with built-in resistance heat, which works effectively in maintaining comfort levels.
• Heating Degree Days (HDD): Areas that experience high HDD figures, indicating a greater need for heating, might find that investing in a dual-fuel system, which combines a heat pump with a gas furnace, provides efficient heating options during the coldest months.
• Cost of Electricity vs. Gas: In regions where electricity is more expensive than natural gas, using a gas furnace as a supplemental heat source might be more cost-effective compared to relying solely on electric resistance heat.
• Local Regulations and Incentives: Some areas may have regulations or incentives that favor specific heating methods, such as tax credits for energy-efficient systems, which can influence the choice of supplemental heating solutions.

What Home Size Considerations Affect Your Supplemental Heating Needs?

Home size considerations that affect supplemental heating needs for a heat pump include:

• Square Footage: The total area of your home significantly determines the heating requirements. Larger homes generally need more supplemental heat to maintain comfortable temperatures, as heat pumps may struggle to provide adequate warmth during extreme cold.
• Insulation Quality: Well-insulated homes retain heat more effectively, reducing the need for supplemental heating. Conversely, poorly insulated homes will lose heat quickly, necessitating stronger supplemental heating solutions to maintain comfort levels.
• Ceiling Height: Homes with higher ceilings can lead to increased heat loss and uneven temperature distribution. This means that more supplemental heating may be required to keep the space adequately warm, especially in rooms with vaulted ceilings.
• Room Layout: The arrangement of rooms and open spaces can affect how heat circulates throughout the home. Homes with many open areas may require less supplemental heat, while those with isolated rooms might need additional sources to provide adequate warmth in all spaces.
• Climate Zone: The geographical location and climate zone of your home play a crucial role in determining heating needs. Homes in colder climates will typically require more robust supplemental heating options due to longer and harsher winters compared to those in milder climates.
• Window Quality and Placement: The type and placement of windows can impact heat retention in your home. Single-pane windows or poorly positioned windows can lead to significant heat loss, increasing the demand for supplemental heating solutions to compensate for this loss.

What Are the Strengths and Weaknesses of Each Supplemental Heating Option?

The best supplemental heat for heat pumps includes various options, each with its own strengths and weaknesses:

• Electric Resistance Heaters: These are commonly used as supplemental heating options for heat pumps and are straightforward to install and use.
• Gas Furnaces: Gas furnaces provide a powerful heat source that can quickly raise indoor temperatures but come with higher operational costs.
• Infrared Heaters: Infrared heaters are efficient and can provide warmth directly to objects and people, making them ideal for spot heating.
• Wood or Pellet Stoves: These options are cost-effective and provide a rustic charm, but they require regular maintenance and fuel supply.
• Heat Pump Water Heaters: These systems use electricity to transfer heat from the air or ground to heat water, offering efficient supplemental heating but may be less effective in extremely cold climates.

Electric Resistance Heaters are highly effective as they can rapidly increase room temperature and are easy to operate, but they can drive up electricity bills if used frequently, making them less economical for long-term use.

Gas Furnaces deliver a strong heating output and can be more efficient in colder temperatures compared to electric options, but they do require a gas line and can lead to increased energy costs, especially in areas with high gas prices.

Infrared Heaters work by emitting infrared radiation that warms objects rather than the air, providing comfortable and direct heat. However, they can be less effective in large spaces and require a steady electricity supply.

Wood or Pellet Stoves are a sustainable choice for supplemental heating, providing warmth and ambiance. Their drawbacks include the need for regular refueling and cleaning, and potential air quality concerns associated with combustion.

Heat Pump Water Heaters can function as a dual-purpose system by providing hot water and supplemental heating, making them energy efficient. However, their performance can decrease in very cold weather, limiting their effectiveness as a primary heat source in frigid climates.

What Efficiency Ratings Should You Look For in Supplemental Heating Options?

When considering supplemental heating options for a heat pump, several efficiency ratings are crucial for optimal performance and cost-effectiveness.

• AFUE (Annual Fuel Utilization Efficiency): This rating measures the efficiency of combustion heating appliances, indicating the percentage of fuel energy that is converted into usable heat. A higher AFUE rating means less energy is wasted, making it a vital factor for gas or oil-based supplemental heaters.
• HSPF (Heating Seasonal Performance Factor): This rating specifically applies to heat pumps, measuring the efficiency of the heating process over an entire season. A higher HSPF indicates better efficiency, meaning the heat pump can provide more heating output per unit of energy consumed, which is essential for effective supplemental heating.
• SEER (Seasonal Energy Efficiency Ratio): While primarily a cooling efficiency measure, SEER can also inform about the overall efficiency of a heat pump system, as it affects heating performance during the winter months. Higher SEER ratings often correlate with improved efficiency, which can enhance the effectiveness of supplemental heating options.
• Energy Star Certification: Products with this certification meet strict energy efficiency guidelines set by the U.S. Environmental Protection Agency. Choosing Energy Star-rated supplemental heating options ensures that you are selecting appliances that use less energy without sacrificing performance, which can significantly lower utility bills.
• COP (Coefficient of Performance): This metric measures the ratio of useful heating or cooling provided to the energy consumed. A higher COP means that the heating system is more efficient, providing more heat for each unit of energy used, making it a critical factor when evaluating supplemental heating options for heat pumps.

Who Are the Experts Saying Is the Best Supplemental Heat for Heat Pumps?

The best supplemental heat for heat pumps is often debated among experts, but several options stand out based on efficiency, cost, and effectiveness.

• Electric Resistance Heating: This is a common choice for supplemental heat, using electric coils to generate warmth. While it’s effective and can quickly provide heat, it tends to be less energy-efficient and more costly to operate compared to other methods.
• Gas Furnaces: Utilizing natural gas or propane, gas furnaces can provide powerful and consistent supplemental heating. They are typically more cost-effective in terms of fuel costs than electric resistance heaters, making them a popular option in colder climates.
• Hydronic Heating Systems: These systems use hot water to distribute heat through radiators or underfloor heating. They are known for their energy efficiency and comfort, though installation can be more complex and costly compared to other options.
• Wood or Pellet Stoves: For those looking for a more eco-friendly option, wood or pellet stoves offer a renewable source of heat. They can significantly reduce heating costs, but require regular maintenance and a supply of fuel.
• Heat Pump Water Heaters: These can serve as a dual-function unit, providing hot water and supplemental heat. They are highly efficient and can help lower energy bills, but their effectiveness can be limited in extremely cold temperatures.

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