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APOLLO Geothermal Heat Pump - 48k btu / 4 ton - Water to Water

Capacity Recommended: 2,500 ft²

Water to Water Heat Pump

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$6,254.69 $5,629.22
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  • 5 Year warrantyIncluded free with every unit
  • Heating and coolingOne all-season system
  • Virtually quietWhisper-quiet operation
  • Energy efficientHigh energy savings
  • Perfect for Radiant HeatingWorks with underfloor heating

Frequently Bought Together

APOLLO Geothermal Heat Pump - 48k btu / 4 ton - Water to Water

APOLLO Geothermal Heat Pump - 48k btu / 4 ton - Water to Water

$6,254.69 $5,629.22

APOLLO Manifold Station
APOLLO Manifold Station

$1,179.47 $1,061.52

Total price: $6,254.69

Apollo Water-to-Water

Main Features

  1. Efficient cooling

    Produces chilled water from 54°F to 45°F for hydronic cooling applications.

  2. High-temperature hydronic heating

    Delivers leaving water up to 131°F for radiant floors, fan coils, and hot-water heating circuits.

  3. Energy savings and COP performance

    Published heating COP reaches up to 6.7 under low-temperature water-loop conditions.

  4. Quiet operation

    The indoor-rated cabinet and inverter-driven components keep sound levels low for residential mechanical spaces.

  5. Hydronic compatibility

    Designed for closed-loop water or brine systems with defined flow ranges and standard hydronic connections.

  6. Twin rotary DC inverter compressor

    Twin rotary DC inverter compressor technology supports stable heating and cooling with responsive modulation.

Apollo water-to-water heat pump main features overview
Apollo water-to-water heat pump product overview

Hydronic System Compatibility

Designed for integration with hydronic systems including radiant floor heating, fan coil units, and air handlers, allowing flexible installation in residential applications.

All-in-One Functionality

The system combines heating, cooling, domestic hot water, and pool heating into a single unit, reducing the need for multiple systems.

Stable Climate Operation

Built to operate in both low and high ambient temperatures, maintaining consistent performance across different climate conditions.

Low Noise Performance

Low-noise operation makes the unit suitable for residential environments where reduced sound levels are important.

Installed in real homes and workshops

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Technical specifications

Product-specific specifications for the APOLLO AP-GEO-4T water-to-water heat pump.

Product model AP-GEO-4T
Power supply 220V / 1PH / 60Hz
Rated heating capacity (water) 14.0 kW / 47,838 BTU/h
Rated cooling capacity 12.1 kW / 41,270 BTU/h
Published heating COP range 3.3 to 6.7
Cooling COP 4.2
Sound level 48 dB(A)
Water inlet / outlet 1 in.
Water flow range 9 to 11 GPM
Refrigerant R32
Cabinet dimensions 29 1/2 x 29 1/2 x 25 1/2 in.
DC compressor type Twin Rotary
Compressor quantity 1

Product documents

Access the official APOLLO AP-GEO-4T documentation below.

APOLLO Water-to-Water Manual

Installation, operation, wiring, and maintenance guidance for the AP-GEO-4T and AP-GEO-6T.

Product details

GEOTHERMAL WATER-TO-WATER HEAT PUMP – 48K BTU / 4 TON

High-efficiency geothermal heat pump designed as a complete boiler replacement solution, delivering reliable heating, cooling, and hot water with exceptional performance in all climates.

 

Key Benefits

  • All-in-one system for heating, cooling, DHW, and pool heating
  • Designed for radiant floor, fan coil units, and air handlers (AHU)
  • High efficiency with COP up to 5.81 for maximum energy savings
  • Stable operation in extreme cold and hot climates
  • Quiet performance at only 52 dB(A)

 

Specifications

  • Capacity Recommended: 2,500 ft²
  • Output: 48,000 BTU (4 ton)
  • Heating Water Temp: 131°F in / 122°F out
  • Cooling Water Temp: 54°F in / 45°F out
  • Annual COP: 4.2
  • Compressor: Twin rotary DC inverter
  • Connections: 1-1/4" water inlet/outlet
  • Controller: Wi-Fi included
  • Application: Hydronic heating & cooling systems, residential use

 

Designed in the USA

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