Madimack InverECO Pool Heat Pump — Heating & Cooling
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The Madimack InverECO is a full-inverter pool heat pump designed for efficient residential pool heating and cooling. Available in four sizes from 32,000 to 66,000 BTU, it automatically adjusts its output as the pool approaches the set temperature instead of repeatedly switching fully on and off.
Choose Boost Mode for faster initial heating or Silence Mode when quieter operation is preferred. The InverECO also includes heating, cooling, and automatic temperature modes, a soft-start system, a twin-rotary inverter compressor, and a twisted titanium heat exchanger.
Why You’ll Love It
- Heating and cooling in one unit
- Full-inverter operation
- COP up to 11.6 under published test conditions
- Boost and Silence operating modes
- Soft start reduces startup electrical demand
- Twisted titanium heat exchanger
- Twin-rotary inverter compressor
- Electronic expansion valve
- Automatic defrost protection
- Built-in flow switch
- Optional Wi-Fi module and InverGo smart app
- Operates in ambient temperatures from 32°F to 109°F
- Four sizes for pools up to approximately 18,000 gallons
Choose Your Model
InverECO 32,000 — INVECO320
- Heating output at 80°F air / 80°F water / 80% humidity: 32,000 BTU
- Heating output at 50°F air / 80°F water / 63% humidity: 17,500 BTU
- COP range at 80/80/80: 10.0–6.7
- Manufacturer-advised pool volume: up to 8,000 gallons
- Advised water flow: 13.2–17.7 GPM
- Sound level at 10 feet: 33.2–45.0 dB(A)
- Dimensions: 37.6 × 12.5 × 25.5 inches
- Weight: 103.6 lb.
InverECO 40,000 — INVECO400
- Heating output at 80°F air / 80°F water / 80% humidity: 40,000 BTU
- Heating output at 50°F air / 80°F water / 63% humidity: 21,400 BTU
- COP range at 80/80/80: 10.7–6.0
- Manufacturer-advised pool volume: up to 11,000 gallons
- Advised water flow: 17.7–26.4 GPM
- Sound level at 10 feet: 33.8–45.2 dB(A)
- Dimensions: 37.6 × 12.5 × 25.5 inches
- Weight: 101.4 lb.
InverECO 50,000 — INVECO500
- Heating output at 80°F air / 80°F water / 80% humidity: 50,000 BTU
- Heating output at 50°F air / 80°F water / 63% humidity: 24,000 BTU
- COP range at 80/80/80: 10.2–6.2
- Manufacturer-advised pool volume: up to 14,000 gallons
- Advised water flow: 21.9–30.6 GPM
- Sound level at 10 feet: 34.7–45.8 dB(A)
- Dimensions: 37.6 × 12.5 × 25.5 inches
- Weight: 114.6 lb.
InverECO 66,000 — INVECO660
- Heating output at 80°F air / 80°F water / 80% humidity: 66,000 BTU
- Heating output at 50°F air / 80°F water / 63% humidity: 28,000 BTU
- COP range at 80/80/80: 11.6–6.2
- Manufacturer-advised pool volume: up to 18,000 gallons
- Advised water flow: 28.5–37.5 GPM
- Sound level at 10 feet: 38.4–47.1 dB(A)
- Dimensions: 37.6 × 15.3 × 25.5 inches
- Weight: 134.5 lb.
Which Size Should You Choose?
The manufacturer-advised pool volumes are useful starting points, but pool gallons alone do not determine the correct heater size.
Proper sizing also depends on:
- Pool surface area
- Location and climate
- Desired water temperature
- Months of operation
- Wind and exposure
- Whether a pool cover is used
- Desired heating speed
- Whether cooling is required
A larger model may be appropriate when faster heating, colder-weather performance, or an extended swimming season is important.
Boost and Silence Modes
Boost Mode allows the compressor to operate from 20% to 100% capacity and is recommended for initial heating.
Silence Mode limits operation to approximately 20% to 80% capacity and operates about 3 dB(A) quieter than Boost Mode.
Once the pool approaches the selected temperature, inverter operation allows the heat pump to reduce output and maintain the water temperature more steadily.
Heating, Cooling and Automatic Operation
The InverECO controller supports:
- Heating Mode: 64°F–104°F
- Cooling Mode: 54°F–86°F
- Automatic Mode: 54°F–104°F
Automatic mode allows the unit to switch between heating and cooling to maintain the selected temperature range.
Optional Wi-Fi Control
An optional Wi-Fi module allows the InverECO to connect with the InverGo smart app for remote temperature adjustment, timers, mode selection, and equipment monitoring.
A strong Wi-Fi signal is required at the equipment location. Madimack recommends a signal stronger than approximately -50 dB for a reliable connection.
Electrical and Plumbing Requirements
- Power supply: 208–230V
- Phase: Single phase
- Frequency: 60 Hz
- Water connections: 1.5 inches
- Heat exchanger: Titanium in PVC
- Installation: Hardwired; plug connection is not permitted
- Refrigerant: R410A
Recommended breaker and fuse ratings:
- INVECO320: 13A
- INVECO400: 13A
- INVECO500: 16A
- INVECO660: 20A
Final wiring, conductor size, grounding, overcurrent protection, and code requirements must be confirmed by a qualified installer based on the installation site.
Installation Requirements
The InverECO must be installed outdoors in a well-ventilated location by qualified professionals.
Manufacturer minimum clearances include:
- 60 inches above the unit
- 28 inches on the air-inlet side
- 100 inches in front of the air outlet
- 20 inches on the remaining side
- 56 inches between units in a multiple-unit installation
These are minimum clearances. Additional open space can improve airflow and service access.
The unit must also:
- Be secured to a solid concrete foundation or suitable corrosion-resistant brackets
- Use rigid plumbing that does not place weight on the water unions
- Have a connected condensate drain
- Receive adequate circulation flow
- Remain accessible for maintenance and service
- Not be installed in a shed, enclosed deck, box, or other restricted-airflow location
Multiple heat pumps must be installed in parallel rather than in series.
Warranty
The current Madimack U.S. limited warranty schedule provides:
- 25 years on the heat exchanger
- 5 years on the compressor
- 3 years on all parts
- 3 years of on-site labor
Warranty coverage begins on the purchase date. Registration, professional installation, commissioning, maintenance, and all other Madimack warranty terms and exclusions apply.
What to Confirm Before Ordering
Before selecting a model, confirm:
- Pool volume and surface area
- Pool location and climate
- Desired water temperature
- Desired heating speed
- Seasonal operating dates
- Pool-cover use
- Available 208–230V single-phase electrical service
- Available circulation flow
- Equipment-pad space and airflow clearances
- Whether the optional Wi-Fi module is required
Frequently Asked Questions
Does the InverECO heat and cool?
Yes. It includes heating, cooling, and automatic temperature-control modes.
Is Wi-Fi included?
Madimack’s current U.S. product information identifies the Wi-Fi module and smart app as optional. Confirm whether the selected configuration includes the Wi-Fi module before ordering.
How cold can the InverECO operate?
Its published operating-air-temperature range is 32°F to 109°F. Heating output and efficiency decrease as ambient temperature drops.
Can it replace a gas heater?
It may be suitable for many residential pool-heating applications, but heat pumps and gas heaters perform differently. The correct choice depends on climate, required heating speed, operating schedule, utility costs, and pool conditions.
Does it require professional installation?
Yes. Madimack requires professional installation. The unit must be hardwired, properly grounded, plumbed with rigid pipe, commissioned for correct flow, and installed according to the manual and applicable codes.
Are the listed pool volumes guaranteed?
No. They are manufacturer-advised starting points. Final sizing depends on the complete pool and installation conditions.
Need Help Choosing?
Contact Summit Pool Supply for help selecting the correct InverECO size based on your pool, location, electrical service, and desired swimming season.
Contact Summit Pool Supply by call or text at (866) 689-0086.