For a central heat pump, backup heat is typically electric resistance heat built into the air handler or a separate heating system that can help when the heat pump cannot meet demand. Among these listed options, the ACiQ systems with included electric heat kits are the most directly relevant. The 4-ton packaged system is suited to buyers seeking an all-in-one unit with a 20kW kit; the 2-ton systems suit smaller system requirements, with different listed kit sizes. Confirm sizing and electrical requirements with a qualified HVAC professional before choosing.
| Product | Listed backup-heat detail | Best suited for |
|---|---|---|
| ACiQ 4 Ton Packaged Heat Pump | 20kW kit | Buyers considering a packaged system |
| ACiQ Essentials 5 Ton Heat Pump | 10kW; optional electric backup heat noted | Buyers considering a larger central system |
| ACiQ Essentials 2 Ton, 5kW | 5kW kit | Buyers considering a smaller central system |
| ACiQ Essentials 2 Ton, 10kW | 10kW; optional electric backup heat noted | Buyers comparing a larger listed kit |
| NATURAQUELL Pool Heat Pump | No home-heating backup feature listed | Pool heating only; not home backup heat |
ACiQ 4 Ton Packaged Heat Pump With 20kW Kit
This packaged heat pump combines heating and cooling in one unit and lists a 20kW kit. It is the clearest match in this selection for a buyer specifically looking for a heat pump with a substantial included electric backup-heat kit. The listing also identifies a 13.4 SEER2 rating and R32 refrigerant.
Best for: Buyers considering a packaged residential or commercial system who want an included electric heat kit. Its all-in-one format may be relevant when comparing packaged equipment with separate indoor and outdoor components.
Why it was selected: The product description explicitly names the 20kW kit and describes both heating and cooling. That makes the backup-heat detail easier to identify than for products whose listing only refers to optional electric backup heat.
Limitation: A 20kW kit does not establish that this unit is correctly sized for a particular building or electrical service. Ask an HVAC contractor to verify both before purchase.
ACiQ Essentials 5 Ton Heat Pump With 10kW Kit
This 5-ton ACiQ Essentials system is listed with a 10kW kit. Its description says it provides heating and cooling and notes optional electric backup heat for colder conditions. It also describes inverter operation and gives stated outdoor operating ranges: cooling from 5°F to 125°F and heat pump heating from 5°F to 75°F.
Best for: Buyers evaluating a larger-capacity central heat pump who want the listing to identify a 10kW kit and an electric backup option. The stated heating range can help frame questions for a contractor, but it is not a guarantee of output or comfort in a particular home.
Why it was selected: It combines a listed kit size with a clear mention of optional electric backup heat, making it relevant to shoppers comparing backup arrangements.
Limitation: The product features call the system ductless in one description while the product name says central AC heat pump. Confirm the exact configuration, included components, and kit contents with the seller before ordering.
ACiQ Essentials 2 Ton Heat Pump With 5kW Kit
This 2-ton ACiQ Essentials listing identifies a 5kW kit and describes inverter heating and cooling. It states a heat pump heating operating range of 5°F to 75°F and says electric backup heat is optional for colder conditions. The smaller nominal capacity and listed kit size make it a distinct comparison from the 5-ton system.
Best for: Buyers whose HVAC professional has determined that a 2-ton system is appropriate and who are comparing a listed 5kW backup-heat kit. The kit figure gives buyers a specific point to discuss when reviewing electrical demand and expected supplemental heat.
Why it was selected: It is one of the few supplied product listings that identifies a backup-heat kit size alongside a central heat pump system.
Limitation: The listing uses “central” in the name but describes the product as ductless in its features. Verify the system type, included indoor equipment, and whether the kit is included as named.
ACiQ Essentials 2 Ton Heat Pump With 10kW Kit
This product is also named as a 2-ton ACiQ Essentials central AC heat pump, but its listing identifies a 10kW kit rather than the 5kW kit on the other 2-ton option. The features describe inverter operation, heating and cooling, and optional electric backup heat for colder conditions.
Best for: Buyers comparing two listed kit sizes for a nominally 2-ton system. The 10kW figure is useful for starting a discussion with a professional about supplemental heat capacity and electrical requirements.
Why it was selected: It offers a direct product-to-product comparison with the 2-ton 5kW listing while retaining the same stated heat pump operating range.
Limitation: A larger kit is not automatically a better choice. The listing does not establish that 10kW is suitable for a specific home, panel, or air handler, and the system configuration should be confirmed before purchase.
NATURAQUELL Inverter Pool Heat Pump
This NATURAQUELL product is designed for pool water, not indoor home heating. Its features specify pools up to 16,000 gallons, output up to 55,000 BTU per hour, heating and cooling modes, Wi-Fi control, and a titanium heat exchanger. It is included here to distinguish a pool heat pump from a home heat pump with backup heat.
Best for: Pool owners seeking a dedicated pool-temperature system. The listed app control and pool capacity are relevant to that use, but they do not make it a home heating backup system.
Why it was selected: It is the only other heat-pump product in the supplied list, and its intended use illustrates why buyers should check whether a heat pump is designed for air or pool water.
Limitation: Do not choose it as backup heat for a house. The product information describes pool heating and cooling, not a home furnace, air handler, or indoor heating system.
Buying Guide: How To Choose Backup Heat For A Heat Pump
What does backup heat do?
A heat pump moves heat rather than generating it through combustion. In cold conditions or during a period of high heating demand, a system may need supplemental heat to help maintain the thermostat setting. Electric resistance heat is one common backup approach. Some homes also have a separate furnace or other heating source, but the appropriate setup depends on the existing equipment and local requirements.
Backup heat is not the same as emergency heat in every control setup. Thermostat labels and system wiring vary. Ask the installer to explain when supplemental heat turns on automatically, what the emergency setting does, and how to use it. Do not assume that a product listing alone explains the finished system’s controls.
How should I compare kit sizes?
The listed ACiQ options include 5kW, 10kW, and 20kW kit figures. These are useful comparison points, not stand-alone recommendations. The right size depends on the building’s heat loss, the heat pump’s capacity and performance, the air handler configuration, and available electrical service. Have a qualified HVAC professional calculate the load and confirm equipment matchups instead of selecting a kit from tonnage alone.
- 5kW listing: A smaller listed kit to discuss for the 2-ton option.
- 10kW listing: Appears with both a 5-ton option and a 2-ton option, so verify the exact system and included components.
- 20kW listing: Identified with the 4-ton packaged system; confirm electrical and installation requirements.
Should I choose electric backup or a separate heating system?
Electric resistance backup can be integrated with compatible heat-pump equipment, but its operation and electrical demand should be reviewed before installation. A separate heating source may suit some homes, depending on existing equipment, fuel availability, climate, and installation plans. Compare the full system design rather than assuming one backup type is universally better. Ask about how the controls coordinate the heat pump and backup source.
What should I verify before ordering?
Product titles and features in this selection do not always describe the system configuration consistently. Some use “central” in the name and “ductless” in the features. Confirm whether the product is packaged, split, ducted, or ductless; which indoor and outdoor components are included; whether the heat kit is included or optional; and whether the thermostat or other named accessories are included.
Also confirm the system’s capacity against a professional load calculation, the electrical requirements, installation scope, and compatibility with the planned controls and air handler. The listed operating temperatures are product-description details, not a promise that the system will maintain a particular indoor temperature in every home.
How can I compare operating costs?
Ask the contractor to compare estimated seasonal operation for the heat pump and its backup source using local weather and utility rates. Electric resistance heat uses electricity to produce heat directly, while a heat pump transfers heat; actual costs depend on equipment performance and conditions. The product details provided here are not enough to calculate household energy costs or savings.
How do I avoid buying the wrong type of heat pump?
Check the intended application. A home heat pump is part of an indoor heating and cooling system, while a pool heat pump transfers heat to or from pool water. Pool capacity, water-temperature controls, and pool-specific construction do not indicate suitability for home heating. For backup heat in a house, choose equipment specifically designed for the home’s HVAC configuration.
Frequently Asked Questions
What is the most common backup heat for a heat pump?
Electric resistance heat is a common supplemental option in heat-pump systems. A separate heating system may also be used, depending on the home and system design.
Does a heat pump always need backup heat?
No. Whether backup heat is needed depends on the climate, home heat loss, equipment capacity, and comfort requirements. An HVAC professional can assess the specific home.
Is a 10kW kit better than a 5kW kit?
Not necessarily. A larger kit may provide more supplemental heating capacity, but it also needs to be appropriate for the system and electrical service. Have the kit size professionally verified.
Can I use a pool heat pump as home backup heat?
No. The NATURAQUELL listing describes equipment for heating and cooling pool water, not a residential indoor heating system.
What should I ask an installer before buying?
Ask the installer to confirm the system type, equipment match, heat-loss calculation, backup-kit size, electrical requirements, thermostat controls, and which components are included in the listing.