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Aquastrong

Aquastrong HEX035 35,000 BTU Inverter Pool Heat Pump, 120V, for Pools up to 9,000 Gallons

The Aquastrong HEX035 is a 35,000 BTU inverter pool heat pump made for above-ground and inground pools up to about 9,000 gallons. It is designed to heat and cool pool water, help extend the swimming season, and give owners app-based temperature control from a standard 120V power setup.

Best For

It is best for homeowners with small to mid-size pools who want a quieter electric heat pump instead of a gas heater, especially if they value remote scheduling, adjustable heating and cooling, and a 120V installation path.

What works

  • 35,000 BTU heating capacity for pools up to about 9,000 gallons
  • Heating and cooling modes help manage water temperature across more of the season
  • WiFi app control supports remote temperature changes, scheduling, and energy-use checks
  • Inverter operation is designed for quieter, more efficient performance than fixed-speed operation
  • 120V power setup can be more convenient for some small and mid-size pool installations
  • Includes adapter options for 1.25-inch and 1.5-inch hose or PVC connections

Tradeoffs

  • Pool size, air temperature, and use of a cover will affect how quickly water warms

Why We Like It

The HEX035 stands out because it combines a useful 35,000 BTU output, inverter operation, heating and cooling modes, and WiFi control in a compact 120V package. The inverter design lets the unit adjust output instead of simply running at one fixed speed, which can help with quieter operation and steadier water temperature management. We also like that Aquastrong includes practical connection options for common pool plumbing sizes and publishes clear core specs such as 9,000-gallon pool capacity, 1188 GPH water flow requirement, and a 117 lb product weight. For shoppers comparing pool heat pumps in this size class, those details make it easier to judge fit before buying.

What Buyers Notice

Public buyer feedback commonly highlights effective heating and cooling, straightforward installation with the included parts, quiet operation, and good efficiency for appropriately sized pools. Several buyers also mention that the app control is useful once the unit is set up.

Who Should Buy It

Buy it if you have a small or mid-size pool near the 9,000-gallon range and want a quieter electric heat pump with app control, scheduled operation, and both heating and cooling. It is especially appealing if you prefer a 120V model and are willing to run it steadily for better temperature maintenance.

Detailed Review

The Aquastrong HEX035 is aimed at pool owners who want more comfortable water without moving to a full gas-heater setup. Its 35,000 BTU rating and up-to-9,000-gallon pool guidance place it in the small to mid-size pool category, where a 120V heat pump can be a practical option for many above-ground pools and some inground setups.

Unlike a basic electric resistance heater, this is an inverter heat pump. In simple terms, it moves heat from the surrounding air into the pool water and can adjust its output as conditions change. Aquastrong lists a 15.8 COP rating, heating control from 47°F to 104°F, and cooling control from 47°F to 83°F. Those numbers make it more flexible than a heat-only unit, especially for owners who want to warm cooler spring or fall water and also take the edge off overly warm summer water.

Ease of use is one of the better parts of the package. The control panel handles basic settings, while app control lets users adjust temperature, set schedules, and monitor operation without standing next to the equipment pad. Installation still requires planning, especially around water flow and hose or pipe connections, but the included adapter options make it friendlier for common pool setups.

For performance expectations, shoppers should remember that heat pumps work best with steady operation and reduced heat loss. Aquastrong recommends continuous operation for the first 16 to 24 hours and proper water flow of at least 1188 GPH. Using a pool cover can make a noticeable difference because it helps keep the heat in the water overnight.

Overall, the HEX035 is a strong fit for buyers who want a connected, efficient, and quieter pool heat pump for a pool near its intended size range. It is not the largest model in Aquastrong's lineup, but for the right pool volume, its mix of inverter control, 120V power, and heating/cooling flexibility gives it a clear everyday-use appeal.

FAQ

What pool size is the Aquastrong HEX035 designed for?

It is listed for pools up to about 9,000 gallons. Pools much larger than that may need a higher-capacity heat pump.

Does it both heat and cool pool water?

Yes. The unit is designed with heating and cooling modes, with listed heating control from 47°F to 104°F and cooling control from 47°F to 83°F.

Can I control it from my phone?

Yes. The product includes WiFi app control for remote temperature adjustment, scheduling, and operation monitoring.

What power supply does this model use?

The HEX035 version is listed as a 120V pool heat pump.

How can I get better heating performance?

Use the correct water flow, run the unit continuously during the first warm-up period, and use a pool cover to reduce overnight heat loss.