Della Omi Spark 21 Alternatives: 6 Similar Picks Compared

How these picks differ

Acquaer 1/4 HP Pool Cover Pump

The Acquaer 1/4 HP Pool Cover Pump serves a completely different purpose than the Della Omi Spark. While the Della unit manages water temperature for swimming, this pump handles drainage from pool covers and spas. It is a compact, submersible device designed for small water volumes rather than large-scale circulation. You get a black unit measuring 17.5 by 12.4 by 7.9 inches that weighs 12.2 pounds. It lacks any heating or cooling capability. Pick this if you need automatic water removal from covers. It does not fit pools needing temperature control. This is a specialized tool for maintenance, not comfort. It offers reliability for drainage tasks where the heat pump cannot function. Choose it for simple, low-volume water management.

AQUASTRONG 2 HP Single-Speed Pool Pump

The AQUASTRONG 2 HP Single-Speed Pool Pump focuses on raw flow power for large pools, unlike the Della Omi Spark which regulates temperature. This blue unit is built for circulation, not heating or cooling. It operates at 220V and features a self-priming design. The dimensions are 10 inches wide, 23.8 inches high, and 8.07 inches long. It supports pools up to 71,333 gallons. You lose smart controls and energy efficiency here. Instead, you gain robust construction and high-capacity movement of water. This pump suits buyers who prioritize durability and flow over adjustable settings. It is ideal for large above-ground or poolside setups. It does not offer WiFi or app integration. Select this if you need strong circulation power for a big volume of water.

Aquastrong 3HP High Flow Pool Pump

The Aquastrong 3HP High Flow Pool Pump provides even more power than the 2 HP version, targeting large pools that need simple operation. It runs on 115V and is charcoal black. The unit measures 9 inches wide, 22 inches high, and 7 inches long. It handles pools up to 74,802 gallons. Unlike the Della Omi Spark, it does not heat or cool water. It is a single-speed, self-priming pump focused on circulation. You trade smart features and temperature precision for certified safety and raw capacity. This pick fits users who want straightforward, high-flow performance without complex controls. It is suitable for above-ground or poolside use. It lacks app connectivity. Choose this if your priority is moving large volumes of water efficiently and reliably.

Vidapool 1/2 HP Automatic Pool Cover Pump

The Vidapool 1/2 HP Automatic Pool Cover Pump is designed for hot tub cover drainage, not pool temperature management. It operates on 115V power and is blue in color. The unit measures 11.6 inches wide, 7.17 inches high, and 12.2 inches long. It offers automatic water removal with standard hose connections. You get a set-and-forget solution for small water volumes. This pump lacks any heating or cooling elements. It does not connect to WiFi or smart home systems. It is a dedicated tool for maintaining cover cleanliness. Pick this if you own a hot tub and need reliable drainage. It is not a substitute for a heat pump. It provides simple, automated water removal where the Della unit would be overkill and ineffective.

AQUASTRONG Dual-Mode Inverter Pool Heat Pump

The AQUASTRONG Dual-Mode Inverter Pool Heat Pump is a direct alternative for inground pools, offering similar heating and cooling functions. It features a hex100 model with a larger footprint, measuring 39 inches long, 17.3 inches wide, and 25.6 inches high. It weighs 117 pounds. This unit prioritizes precise temperature control and energy efficiency for large pools. It includes app-based management and quiet operation. You gain a more robust system for bigger water volumes. It lacks the compact size of the Della Omi Spark. The Della unit is smaller and fits more spaces. Pick this if you need a heavy-duty solution for an inground pool. It offers advanced features but requires more installation space and power infrastructure.

Wayne 1/4 HP Automatic Pool Cover Pump

The Wayne 1/4 HP Automatic Pool Cover Pump provides reliable automated water removal from pool covers, similar to other cover pumps. It is a blue thermoplastic unit measuring 11.2 inches long, 7.9 inches wide, and 11.9 inches high. It weighs 10.6 pounds. This pump focuses on debris protection and automatic operation for small water volumes. It does not heat or cool water. It lacks smart connectivity or temperature regulation. You get a dependable, simple device for maintenance tasks. Pick this if you need automated cover drainage without complex features. It is not a heat pump. It serves a specific niche for pool owners who want hands-off water removal. It offers reliability and compact storage where a heat pump would be impractical.

Quick picks

Our 7 picks

1 Best overall

Della Omi Spark 21,000 BTU Inverter Heat Pump

Best for: Small pools needing heating and cooling

Heating Capacity

21,000 BTU

Pool Capacity

Up to 7,000 Gallons

Voltage

110-120V

Compressor Technology

DC Inverter

Operational Modes

Heating & Cooling

COP Rating

4.02 at 50°F, 4.97 at 80.6°F

View on Amazon: Della Omi Spark 21,000 BTU Inverter Heat Pump Affiliate link

The Della Omi Spark is a 21,000 BTU inverter heat pump designed for pools up to 7,000 gallons. It offers dual heating and cooling modes, reaching water temperatures from 47°F to 104°F. The unit features a titanium heat exchanger and operates at 48 dB. You can control it via WiFi, Alexa, or Google Home. Its compact 17.9-inch footprint fits most residential spaces while delivering efficient temperature management.

Pros

• Full DC inverter technology adjusts output for energy savings
• Dual heating and cooling modes for year-round comfort
• Smart WiFi control with Alexa and Google Home compatibility
• Titanium heat exchanger for durability and corrosion resistance

Cons

• Heating capacity is limited to 21,000 BTU
• Maximum pool capacity is 7,000 gallons
• Cooling function only reaches 47°F water temperature

Good fit if

• You need both heating and cooling for your pool
• You want remote control via smartphone or voice assistant
• You have a pool under 7,000 gallons

Skip if

• You require heating for pools larger than 7,000 gallons
• You need a unit with higher than 21,000 BTU output
• You prefer manual controls without WiFi connectivity

Verdict: Della Omi Spark 21,000 BTU Inverter Heat Pump is a compact, smart solution for small to medium pools. It suits owners who value precise temperature control and remote management over raw heating power.

2 Best budget

Acquaer 1/4 HP Pool Cover Pump

Best for: automatic pool cover and spa drainage

Voltage

115 volt

Features

Pool Cover

Use

Poolside

Horsepower

4 HP

Dimensions

16.9 × 12.4 × 7.7 inches

Weight

12.2 pounds

View on Amazon: Acquaer 1/4 HP Pool Cover Pump Affiliate link

The Acquaer 1/4 HP submersible pump moves 2,250 gallons per hour. It features an automatic on/off switch that activates at 2 inches of water and shuts off after draining to 0.4 inches. The unit measures 17.5 x 12.4 x 7.9 inches and weighs 12.2 pounds. It includes a 3/4-inch check valve adapter. This model suits users needing reliable water removal from pool covers, spas, or tarps without manual monitoring.

Pros

• Automatic on/off switch triggers at 2 inches of water depth
• Drains water down to approximately 0.4 inches
• Moves up to 2,250 gallons per hour
• Built-in temperature control prevents dry burning
• Includes 3/4-inch check valve adapter

Cons

• Lower 1/4 HP motor compared to high-flow pool pumps
• Limited to 115-volt standard outlets only
• Small 25-foot power cord length

Good fit if

• You need automatic water removal from pool covers
• You want a submersible pump for spas or hot tubs
• You prefer a unit with a built-in check valve adapter

Skip if

• You require high-flow circulation for large in-ground pools
• You need dual-voltage 220V compatibility
• You want a pump with a longer power cord

Verdict: Acquaer 1/4 HP Automatic Pool Cover Pump provides reliable automatic drainage for small water volumes. It fits users who need a compact, submersible solution for pool covers and spas rather than high-capacity pool circulation.

3 Best 2 hp

AQUASTRONG 2 HP Single-Speed Pool Pump

Best for: large pools needing high flow power

Pool Capacity

71333 Gallons

Voltage

220V

Features

Self-Priming

Use

Poolside, Above Ground Pools

Speed

Single Speed

Horsepower

2 HP

View on Amazon: AQUASTRONG 2 HP Single-Speed Pool Pump Affiliate link

This Aquastrong pump delivers high flow for pools up to 71,333 gallons. Its 2HP single-speed motor runs on 220V power. The self-priming design ensures efficient circulation. You get a reinforced thermoplastic body for durability. The unit includes a transparent lid for easy filter checks. It suits large above-ground or in-ground setups where steady water movement is key.

Pros

• High flow rate of 8917 GPH
• 2HP motor for powerful suction
• Self-priming capability
• Transparent lid for filter monitoring

Cons

• Single speed limits flow control
• Requires 220V electrical connection
• Larger footprint at 23.8 inches tall

Good fit if

• You need high flow for large pools
• You have 220V power available
• You want durable thermoplastic construction

Skip if

• You need variable speed settings
• You only have 110V outlets
• You prefer compact pump designs

Verdict: Aquastrong 2HP 220V Pool Pump delivers robust circulation for large pools. It fits buyers who prioritize raw flow power and durable construction over adjustable speed settings.

4 Also great

Aquastrong 3HP High Flow Pool Pump

Best for: Large pools needing high flow and simple operation

Pool Capacity

74802 Gallons

Voltage

115V

Features

Self-Priming

Use

Poolside, Above Ground Pools

Speed

Single Speed

Horsepower

3 HP

View on Amazon: Aquastrong 3HP High Flow Pool Pump Affiliate link

This Aquastrong pump delivers 9350 GPH flow at 115V. It is a single-speed, self-priming unit rated for up to 74,802 gallons. The motor is ETL-certified, and the cord is UL-certified. It fits both above-ground and in-ground setups. You get two adapters for 1.5-inch and 2-inch connections. It starts automatically when plugged in. This model suits users who need high flow without complex controls.

Pros

• 3 HP motor provides 9350 GPH flow rate
• ETL-certified motor and UL-certified 6-foot power cord
• Includes 1.5-inch and 2-inch adapters for easy installation
• Self-priming design for reliable operation

Cons

• Single-speed operation lacks variable flow control
• Large footprint measures 22 inches high and 9 inches wide
• No automatic timer or remote control included

Good fit if

• You need a high-flow pump for large pools
• You prefer simple plug-and-play installation
• You require ETL-certified safety for your setup

Skip if

• You need variable speed settings for energy efficiency
• You want a compact unit for tight spaces
• You require remote or smart control features

Verdict: Aquastrong 3HP 115V Pool Pump is a robust choice for users prioritizing raw flow capacity and certified safety over adjustable settings. It fits large pools where simplicity and power are more important than fine-tuned control.

5 Best 1/2 hp

Vidapool 1/2 HP Automatic Pool Cover Pump

Best for: Automatic 115V hot tub cover drainage

Voltage

115V

Features

Pool Cover

Use

Poolside, Inground Pools

Horsepower

1/2 HP

Dimensions

12.2 × 11.6 × 7.17 inches

View on Amazon: Vidapool 1/2 HP Automatic Pool Cover Pump Affiliate link

This Vidapool submersible pump handles 115V power and moves up to 2,250 gallons per hour. It uses a smart sensor to turn on at 2.1 inches of water and off at 0.4 inches. The 1/2 HP motor lifts water up to 26.6 feet. It fits standard 3/4-inch garden hoses. You get a 25-foot cord for reach. It suits hot tub owners needing automatic water removal from covers.

Pros

• 115V single voltage operation
• Automatic on/off sensor at 2.1 and 0.4 inches
• 2,250 GPH flow rate with 1/2 HP motor
• 25-foot power cord included

Cons

• Single speed motor limits flow adjustment
• 115V only, not compatible with 220V outlets
• No remote control or app connectivity

Good fit if

• You want automatic water removal without manual pumping
• You have standard 115V outlets near your hot tub
• You need a pump that fits standard garden hoses

Skip if

• You require high-flow drainage for large pools
• You only have 220V electrical access
• You prefer remote-controlled pump operation

Verdict: Vidapool 1/2 HP Automatic Pool Cover Pump offers reliable automatic drainage for hot tub owners using 115V power. It fits users who want set-and-forget water removal with standard hose connections.

6 Best premium

AQUASTRONG Dual-Mode Inverter Pool Heat Pump

Best for: Inground pools needing heating and cooling

Heating Capacity

100,000 BTU

Voltage

220V

Compressor Technology

Full DC variable frequency

Operational Modes

Heating and cooling

COP Rating

15.8

Connectivity

WiFi, app

View on Amazon: AQUASTRONG Dual-Mode Inverter Pool Heat Pump Affiliate link

This AQUASTRONG heat pump offers heating and cooling modes for above ground and inground pools. It uses full DC variable frequency technology to reach a COP rating of 15.8. The unit includes app control for remote temperature adjustments and scheduling. It measures 20 by 43 by 48 inches and weighs 117 pounds. The system operates at 55 dB and includes an auto-defrost cycle. It is designed to extend your swimming season through variable climate conditions.

Pros

• High 15.8 COP rating for energy efficiency
• Dual heating and cooling operational modes
• Remote control via mobile app
• Quiet 55 dB operational noise level

Cons

• Large physical footprint requires significant space
• Heavy weight of 117 pounds complicates placement
• No remote control hardware included in data

Good fit if

• You need both heating and cooling for your pool
• You want to control temperature settings remotely via an app
• You have space for a large 20 by 43 by 48 inch unit

Skip if

• You require a compact unit under 100 pounds
• You prefer a system without smartphone connectivity
• You only need heating without cooling capabilities

Verdict: AQUASTRONG HEX100 Inverter Pool Heater suits users who need precise temperature control and energy efficiency for large pools. It fits buyers who value app-based management and quiet operation over compact size.

7 Also great

Wayne 1/4 HP Automatic Pool Cover Pump

Best for: Automatic pool cover water removal

Features

Pool Cover

Use

Poolside

Dimensions

11.2 × 7.9 × 11.9 inches

Weight

10.6 pounds

View on Amazon: Wayne 1/4 HP Automatic Pool Cover Pump Affiliate link

The Wayne WAPC250 is a 1/4 HP submersible pump designed for pool covers. It moves up to 3,000 gallons per hour. The iSwitch technology starts pumping at 2-1/8 inches of water and stops at 3/4 inch. It includes a 25-foot power cord and a pull-to-shore rope. This blue unit weighs 10.6 pounds and measures 11.2 by 7.9 by 11.9 inches. It suits users needing automatic water removal from winter covers.

Pros

• Automatic iSwitch activation at 2-1/8 inches of water
• Maximum flow rate of 3,000 gallons per hour
• Includes 25-foot power cord and pull-to-shore rope
• Smart protection circuit prevents motor damage from debris
• Strainer base filters debris and prevents tipping

Cons

• Lower 1/4 HP motor compared to high-flow pool pumps
• Requires manual activation if water is below 2-1/8 inches
• No app or remote control for remote monitoring

Good fit if

• You need automatic water removal from a pool cover
• You want a pump with built-in freeze protection
• You prefer a unit assembled in the USA

Skip if

• You require a higher flow rate than 3,000 GPH
• You need to pump water deeper than 2-1/8 inches
• You want a dual-speed pump for versatility

Verdict: Wayne WAPC250 Thermoplastic Pool Cover Pump is a reliable choice for homeowners who need automated water removal from pool covers. It fits users who value automatic operation and debris protection over raw pumping speed.

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Frequently asked questions

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