Vidapool vs GRAT Pool Heat Pumps: Which Brand Fits You?
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The vidapool vs GRAT pool heat pump comparison highlights two very different tools for pool maintenance. The Vidapool model is a submersible sump pump designed to remove unwanted water from covers or shallow areas. The GRAT unit is an air-source heat pump built to warm and cool pool water. While both sit poolside, their functions do not overlap. One handles drainage, while the other manages temperature. You need to decide which task requires your attention first.
Key differences
| Aspect | Vidapool 1/2 HP Automatic Pool Cover Pump | GRAT 75,000 BTU Full Inverter Pool Heat Pump |
|---|---|---|
| Primary Function | Drains water via suction | Heats and cools water |
| Power Source | 115V electric motor | Air-source heat pump |
| Flow/Output | 2169 GPH flow rate | 75,000 BTU heating capacity |
| Control Type | Automatic float sensor | WiFi and Bluetooth app |
| Pool Capacity | Not listed | Up to 21,000 gallons |
Which one should you choose?
Choose Vidapool 1/2 HP Automatic Pool Cover Pump if
- You need to quickly remove standing water from a pool cover
- You require a submersible pump for basements or window wells
- You want a simple automatic unit with no smart features
Choose GRAT 75,000 BTU Full Inverter Pool Heat Pump if
- You want to raise or lower your pool water temperature
- You prefer controlling heating schedules via a mobile app
- You have a large pool up to 21,000 gallons
Verdict: Choose the Vidapool pump if your immediate goal is draining water from covers or shallow spaces. Select the GRAT heat pump if you need to actively manage the temperature of your pool water. These devices serve distinct maintenance needs rather than competing directly.
Vidapool vs GRAT Key Specs
Primary function
The Vidapool unit is a submersible sump pump designed to remove standing water. It automatically powers on when water reaches 2.1 inches and off at 0.4 inches. This makes it ideal for draining pool covers, window wells, or shallow areas. In contrast, the GRAT model is an air-source heat pump. Its sole purpose is to warm or cool pool water. It captures heat from the surrounding air to maintain a specific temperature range. You need these devices for entirely different tasks. One removes water; the other manages water temperature. They do not overlap in their core mechanical purpose.
Heating capacity
The GRAT heat pump delivers 75,000 BTUs of heating power. This capacity allows it to handle pools up to 21,000 gallons. It uses a titanium heat exchanger that resists corrosion in both fresh and saltwater environments. The Vidapool pump does not provide any heating capability. It moves water at a rate of 2,169 gallons per hour. If you need to raise the water temperature, only the GRAT unit offers this feature. The Vidapool model simply drains liquid. It cannot influence the thermal state of your pool. For temperature control, the GRAT specification is the only relevant metric here.
Control type
The GRAT system offers advanced digital control via a mobile app. It connects through 2.4GHz WiFi for remote monitoring and adjustments. Initial pairing requires Bluetooth. You can set heating ranges from 46°F to 104°F and cooling ranges from 45°F to 82°F. The Vidapool pump uses a simple automatic sensor mechanism. It relies on water level triggers rather than user input. There is no app, remote, or digital display mentioned for the Vidapool model. It operates independently once placed in water. If you prefer remote management and precise temperature settings, the GRAT control system provides significantly more functionality.
Motor power
The Vidapool pump features a 1/2 HP motor. This power level enables it to lift water up to 26.6 feet. It moves water efficiently for drainage tasks. The GRAT heat pump does not list a horsepower rating in the provided data. Instead, it focuses on BTU output and inverter compressor technology. The full inverter technology helps reduce energy consumption while maintaining stable heating. Since the products serve different purposes, direct horsepower comparison is limited. However, the Vidapool motor is rated for specific mechanical lifting work, while the GRAT focuses on thermal transfer efficiency.
Noise level
The GRAT heat pump operates at approximately 50 dB. This level is considered quiet for outdoor pool equipment. The automatic defrost technology helps ensure efficient operation in cooler weather without excessive noise. The Vidapool pump does not provide a decibel rating in the specifications. Submersible pumps are generally quieter than external air-source units, but exact data is missing. If low noise is a critical factor for your poolside area, the GRAT specification confirms it meets quiet operation standards. You cannot verify the noise profile of the Vidapool model from the available data alone.
Physical size
The GRAT heat pump is a large outdoor unit. It measures 34 inches in length, 22 inches in height, and 18 inches in width. It requires significant space for installation. The Vidapool pump is much more compact. It measures 12.2 inches in length, 11.6 inches in width, and 7.17 inches in height. This small footprint allows it to fit easily into pool covers or tight spaces. The Vidapool model is submersible and portable. The GRAT unit is a permanent or semi-permanent installation. If space is limited, the Vidapool dimensions are far more manageable for temporary or confined setups.
Which model fits your needs?
You need to drain water from pool covers
The Vidapool pump features automatic on-off sensors that activate at 2.1 inches and shut off at 0.4 inches. Its 1/2 HP motor moves up to 2250 GPH, effectively clearing standing water from covers or shallow areas. The compact design allows it to remove water down to 1/4 inch, making it the practical choice for this specific maintenance task.
You want to heat your pool via an app
The GRAT heat pump offers WiFi and Bluetooth connectivity for remote control via a mobile app. It delivers 75,000 BTU of heating power for pools up to 21,000 gallons. With a full inverter compressor and a heating range of 46°F to 104°F, it provides consistent warmth. The digital control panel allows you to monitor and adjust settings from anywhere.
You prefer quiet operation for outdoor living
The GRAT unit operates at approximately 50 dB, ensuring minimal noise disruption in your outdoor space. Its UV-resistant ABS housing protects against weather damage while maintaining a low sound profile. This quiet performance, combined with its durable construction, makes it suitable for installation near patios or seating areas where excessive noise would be undesirable during operation.
You need a simple submersible pump for drains
The Vidapool model is built for straightforward water removal tasks. It includes a 25-foot power cord for flexible placement and a check valve to prevent backflow. The blockage and no-load protection safeguards the motor during dry runs. Its 115V compatibility and standard 1-inch NPT discharge make it easy to connect to standard garden hoses for efficient draining.
The products compared
Vidapool 1/2 HP Automatic Pool Cover Pump
Best for: automatically draining hot tub covers
- 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 is designed for draining pool covers and small water bodies. It features a 1/2 HP motor delivering up to 2250 GPH with automatic on/off sensors. The unit activates at 2.1 inches of water and shuts off below 0.4 inches. It includes a 25-foot cord and fits standard 3/4-inch hoses. This 115V model suits hot tub owners needing quick cover drainage without manual effort.
Pros
- Automatic on/off sensor triggers at 2.1 inches and cuts off below 0.4 inches
- 1/2 HP motor provides up to 2250 GPH flow rate
- 25-foot power cord allows distance from outlets
- Built-in check valve prevents water backflow
- Blockage and no-load protection prevents dry running damage
Cons
- Requires manual placement in water before plugging in to start
- Only includes a 1-inch NPT discharge for 3/4-inch hoses
- Lacks WiFi or smart app control for remote monitoring
Good fit if
- You want automatic drainage for your hot tub cover
- You need a reliable submersible pump for small water volumes
- You prefer simple plug-and-play operation without complex setup
Skip if
- You require remote control via a smartphone app
- You need to pump water from deep wells or large pools
- You want a pump that starts automatically when plugged in
Verdict: Vidapool 1/2 HP Automatic Pool Cover Pump is a practical tool for hot tub owners who need to quickly drain water from their covers. Its automatic sensors and high flow rate make it ideal for routine maintenance tasks.
GRAT 75,000 BTU Full Inverter Pool Heat Pump
Best for: large saltwater pools with app control
- Heating Capacity
- 75,000 BTU
- Pool Capacity
- 21,000 Gallons
- Compressor Technology
- Full Inverter
- Operational Modes
- Heating & Cooling
- Connectivity
- WiFi, Bluetooth
- Control Type
- App Control
View on Amazon: GRAT 75,000 BTU Full Inverter Pool Heat Pump Affiliate link
The GRAT heat pump uses full inverter technology to heat pools up to 21,000 gallons. It delivers 75,000 BTU with a titanium heat exchanger for saltwater compatibility. You control it via a WiFi app or Bluetooth, adjusting temperatures between 46°F and 104°F. The unit runs quietly at 50 dB and includes automatic defrost. It suits owners of large pools who want smart remote management and efficient heating.
Pros
- Full inverter compressor for energy efficiency
- WiFi and Bluetooth app control
- Titanium heat exchanger for saltwater pools
- Quiet 50 dB operation
Cons
- Requires 2.4GHz WiFi for remote use
- Bluetooth needed for initial pairing
- Larger physical footprint (34x22x18 inches)
Good fit if
- You have a pool up to 21,000 gallons
- You want smart app control
- You use saltwater or freshwater
Skip if
- You need a smaller unit for small pools
- You require 5GHz WiFi only
- You want a gas heater for instant heat
Verdict: The GRAT 75,000 BTU Inverter Heat Pump is a smart, efficient choice for large pools. It fits you best if you value remote control and quiet operation over compact size.
Specifications side by side
| Spec | Vidapool 1/2 HP Automatic Pool Cover Pump | GRAT 75,000 BTU Full Inverter Pool Heat Pump |
|---|---|---|
| Heating Capacity | not stated | 75,000 BTU |
| Pool Capacity | not stated | 21,000 Gallons |
| Voltage | 115V | not stated |
| Compressor Technology | not stated | Full Inverter |
| Operational Modes | not stated | Heating & Cooling |
| Connectivity | not stated | WiFi, Bluetooth |
| Features | Pool Cover | not stated |
| Control Type | not stated | App Control |
| Use | Poolside, Inground Pools | Poolside, Inground Pools |
| Capacity | not stated | 21,000 Gallons |
| Horsepower | 1/2 HP | not stated |
| Dimensions | 12.2 × 11.6 × 7.17 inches | 34 × 18 × 22 inches |
| Color | Blue | Gray |
| Model | SUC50E | GTHP2109CSA32 |
Frequently asked questions
Can the GRAT heat pump control my pool temperature via smartphone?
Yes, the GRAT unit supports app control for remote management. This feature allows you to adjust settings from anywhere. It is designed for users who value convenience and quiet operation over a compact footprint. You can monitor and change temperatures without standing next to the unit.
What is the primary difference between the Vidapool and GRAT units?
The Vidapool pump is a submersible device for draining water. It removes standing water from covers or shallow areas. The GRAT unit is an air-source heat pump. It is built to warm pool water. One tool removes water, while the other raises the temperature.
Does the Vidapool pump operate automatically?
Yes, the Vidapool pump includes automatic sensors. It powers on when water reaches 2.1 inches and shuts off at 0.4 inches. This automation handles routine draining tasks without manual intervention. You do not need to watch the water level constantly for it to work.
What size is the GRAT heat pump?
The GRAT heat pump measures 34 inches in length, 22 inches in height, and 18 inches in width. Its gray finish blends with outdoor settings. The dimensions indicate it is a larger unit. You need adequate space for installation and airflow around the device.
Is the Vidapool pump suitable for draining hot tub covers?
Yes, the Vidapool pump is ideal for draining hot tub covers. Its 1/2 HP motor provides a high flow rate for quick water removal. The automatic sensors ensure it turns off when the cover is dry. This makes routine maintenance tasks faster and less labor-intensive.
What voltage does the Vidapool pump require?
The Vidapool pump operates on 115V power. This standard voltage is common for household outlets. You can plug it into a typical wall socket. The 1/2 HP motor delivers sufficient power for draining water from pool covers or window wells efficiently.
Which brand is better for large saltwater pools?
The GRAT heat pump is recommended for large saltwater pools. It offers smart app control and quiet operation. The Vidapool unit is a drain pump and cannot heat water. If you need to warm a large volume of saltwater, the GRAT unit is the correct choice.

