Hydro Station
A simpler mechanical room
Combines pump, controls, and electric backup into one compact wall station — less loose parts, faster install, cleaner mechanical room.
View details$6,176.48
$4,94120% off
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APOLLO Geothermal — Standard
APOLLO Geothermal Heat Pump - 48k btu / 4 ton - Water to Water
Heating Capacity: Up to 3,500 ft²
Quiet water-to-water heating and cooling with stable ground-source performance and leaving water up to 131°F.
Model
APOLLO Geothermal 4 Ton - 48K BTU · Up to 3,500 ft²
$6,254.69
$5,00320% OFF
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Installed in real homes and workshops
Customer Success Stories
Take a guided tour of a complete MBTEK geothermal system and see how the heat pump, HydroSmart Station, storage, and hydronic distribution work together.
The Ultimate MBTEK Geothermal Setup — Part 1
Part 1 introduces the complete installation in Concho, Arizona.
Product details
- Ground-source stability
- Heating and cooling
- DC inverter compressor
- Up to 131°F water
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, domestic hot water, and pool heating
- Designed for radiant floors, fan coil units, and air handling units
- High efficiency with a COP of up to 5.81 for maximum energy savings
- Stable operation in extreme cold and hot climates
- Quiet performance at only 52 dB(A)
Specifications
- Recommended Coverage: Up to 2,500 ft²
- Output: 48,000 BTU / 4 ton
- Heating Water Temperature: 131°F inlet / 122°F outlet
- Cooling Water Temperature: 54°F inlet / 45°F outlet
- Annual COP: 4.2
- Compressor: Twin rotary DC inverter
- Water Connections: 1-1/4" inlet and outlet
- Controller: Wi-Fi included
- Application: Residential hydronic heating and cooling systems
Designed in the USA
| Model code | AP-GEO-4T |
|---|---|
| Rated heating capacity | 14.0 kW / 47,838 BTU/h |
| Rated cooling capacity | 12.1 kW / 41,270 BTU/h |
| Heating COP range / cooling COP | 3.3–6.7 / 4.2 |
| Power supply | 220V / 1PH / 60Hz |
| Water flow / connection | 9–11 GPM / 1 in |
| Refrigerant | R-32 |
| Cabinet dimensions | 29½ × 29½ × 25½ in |
- Model code
- AP-GEO-4T
- Rated heating capacity
- 14.0 kW / 47,838 BTU/h
- Rated cooling capacity
- 12.1 kW / 41,270 BTU/h
- Heating COP range / cooling COP
- 3.3–6.7 / 4.2
- Power supply
- 220V / 1PH / 60Hz
- Water flow / connection
- 9–11 GPM / 1 in
- Refrigerant
- R-32
- Cabinet dimensions
- 29½ × 29½ × 25½ in
Complete the system
What APOLLO Geothermal Heat Pump - 48k btu / 4 ton - Water to Water Works With
Water heater tank
Store heat and make hot water
The combined buffer and indirect tank stores boiler heat and supplies household hot water — no separate water heater needed.
View detailsModel
DHW120 MAX · 90 gal DHW + 30 gal buffer
$3,925
$3,14020% off
Heating & Cooling Delivery
Heating & cooling with fan coils
Wall, concealed, ceiling, or floor units heat and cool rooms with hot or chilled water. The same thermostat platform controls them.
View detailsRadiant floor distribution
Even heat across every loop
Distributes warm water evenly to each radiant floor zone. The thermostat controls the valve; the manifold station distributes the flow.
View detailsType
Manifold Station 12 Loop
$1,179.47
$94320% off
APOLLO Wi-Fi Thermostat
Smart control for every room
A dedicated fan coil thermostat runs the unit on a schedule and only when there is real demand, reducing energy use and improving room-by-room comfort.
View detailsModel
Fan Coil Thermostat · 2/4-pipe FCU
Power
12 to 24V AC/DC
$311.25
$24920% off
Pool Heating
Optional Pool Heating
Pool heating can be added to the hydronic plan when the right heat exchanger, controls, and sizing are selected for the pool and climate.
View detailsMBTEK Google Reviews
Verified Google reviews from MBTEK customers across our heating and hydronic product lines.
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Installation help and contact
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Our team can help with product questions, sizing guidance, and next steps.