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Pool / Spa Heating
APOLLO Pool and Spa Heat Exchanger
Heats pool or spa water by exchanging heat with a separate heat source loop — such as a boiler or heat pump circuit — rather than heating the pool water directly, which keeps the pool's water chemistry isolated from the heating equipment's own loop.
Material
Stainless 316L
Port
Opposite Side
Heat Transfer Capacity
155 KBTU
$270
$21620% OFF
Shipping$99Free
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Product details
- Heats pool/spa water via a separate heat source loop
- Available in Stainless 316L, or Titanium for saltwater
- Same-side inlet/outlet simplifies piping
- Six capacity tiers from 55 to 2,400 KBTU
Pool & Spa Heat Exchanger — Stainless 316L and Titanium
Heats a pool or spa from a separate boiler or heat pump loop. The pool water stays in its own circuit, so chlorine or salt never passes through the heating equipment.
Stainless 316L is for chlorinated pools and spas. Titanium is for saltwater and more aggressive water chemistry. Every size is available with the connections on the same side or on opposite sides.
Five capacities cover a spa through a large commercial pool. Connection size, output, heat-up, and surface area are listed with each one.
Key Benefits
- Pool water stays in its own loop, heated from a separate boiler or heat pump circuit
- Stainless 316L for chlorinated water, Titanium for saltwater
- Same-side or opposite-side ports
- Five capacities, from 155 to 2,400 KBTU
- Connection size grows with capacity, from 1–1 1/2 in up to 3–4 in
Capacities
- 155 KBTU — 45 kW, 155,000 BTU/hr. Connections 1–1 1/2 in. Heats about 13,300 gallons by 1°F per hour. Surface area 2.702 ft².
- 300 KBTU — 88 kW, 300,000 BTU/hr. Connections 1 1/2–2 in. Heats about 25,800 gallons by 1°F per hour. Surface area 6.889 ft².
- 600 KBTU — 175 kW, 600,000 BTU/hr. Connections 2–2 1/2 in. Heats about 52,500 gallons by 1°F per hour. Surface area 16.695 ft².
- 1,200 KBTU — 350 kW, 1,200,000 BTU/hr. Connections 2 1/2–3 in. Heats about 105,000 gallons by 1°F per hour. Surface area 33.390 ft².
- 2,400 KBTU — 700 kW, 2,400,000 BTU/hr. Connections 3–4 in. Heats about 210,000 gallons by 1°F per hour. Surface area 66.780 ft².
| Specification | 155 KBTU | 300 KBTU | 600 KBTU |
|---|---|---|---|
| Connection | 1–1 1/2 in | 1 1/2–2 in | 2–2 1/2 in |
| Output | 45 kW, 155,000 BTU/hr | 88 kW, 300,000 BTU/hr | 175 kW, 600,000 BTU/hr |
| Heat-up | 13,300 gal by 1°F/hr | 25,800 gal by 1°F/hr | 52,500 gal by 1°F/hr |
| Surface area | 2.702 ft² | 6.889 ft² | 16.695 ft² |
| Specification | 300 KBTU | 600 KBTU | 1200 KBTU |
|---|---|---|---|
| Connection | 1 1/2–2 in | 2–2 1/2 in | 2 1/2–3 in |
| Output | 88 kW, 300,000 BTU/hr | 175 kW, 600,000 BTU/hr | 350 kW, 1,200,000 BTU/hr |
| Heat-up | 25,800 gal by 1°F/hr | 52,500 gal by 1°F/hr | 105,000 gal by 1°F/hr |
| Surface area | 6.889 ft² | 16.695 ft² | 33.390 ft² |
| Specification | 600 KBTU | 1200 KBTU | 2400 KBTU |
|---|---|---|---|
| Connection | 2–2 1/2 in | 2 1/2–3 in | 3–4 in |
| Output | 175 kW, 600,000 BTU/hr | 350 kW, 1,200,000 BTU/hr | 700 kW, 2,400,000 BTU/hr |
| Heat-up | 52,500 gal by 1°F/hr | 105,000 gal by 1°F/hr | 210,000 gal by 1°F/hr |
| Surface area | 16.695 ft² | 33.390 ft² | 66.780 ft² |
| Specification | 1200 KBTU | 2400 KBTU |
|---|---|---|
| Connection | 2 1/2–3 in | 3–4 in |
| Output | 350 kW, 1,200,000 BTU/hr | 700 kW, 2,400,000 BTU/hr |
| Heat-up | 105,000 gal by 1°F/hr | 210,000 gal by 1°F/hr |
| Surface area | 33.390 ft² | 66.780 ft² |
| Specification | 2400 KBTU |
|---|---|
| Connection | 3–4 in |
| Output | 700 kW, 2,400,000 BTU/hr |
| Heat-up | 210,000 gal by 1°F/hr |
| Surface area | 66.780 ft² |
Applies to all models
| Application | Swimming pools and spas |
|---|---|
| Heat source | Separate boiler or heat pump loop |
| Material | Stainless 316L for chlorinated water; Titanium for saltwater |
| Ports | Same side or opposite side |
155 KBTU
- Connection
- 1–1 1/2 in
- Output
- 45 kW, 155,000 BTU/hr
- Heat-up
- 13,300 gal by 1°F/hr
- Surface area
- 2.702 ft²
300 KBTU
- Connection
- 1 1/2–2 in
- Output
- 88 kW, 300,000 BTU/hr
- Heat-up
- 25,800 gal by 1°F/hr
- Surface area
- 6.889 ft²
600 KBTU
- Connection
- 2–2 1/2 in
- Output
- 175 kW, 600,000 BTU/hr
- Heat-up
- 52,500 gal by 1°F/hr
- Surface area
- 16.695 ft²
1200 KBTU
- Connection
- 2 1/2–3 in
- Output
- 350 kW, 1,200,000 BTU/hr
- Heat-up
- 105,000 gal by 1°F/hr
- Surface area
- 33.390 ft²
2400 KBTU
- Connection
- 3–4 in
- Output
- 700 kW, 2,400,000 BTU/hr
- Heat-up
- 210,000 gal by 1°F/hr
- Surface area
- 66.780 ft²
Applies to all models
- Application
- Swimming pools and spas
- Heat source
- Separate boiler or heat pump loop
- Material
- Stainless 316L for chlorinated water; Titanium for saltwater
- Ports
- Same side or opposite side
Answers
Frequently asked questions
How does the APOLLO Pool and Spa Heat Exchanger work?
It transfers heat from a separate heat-source loop into pool or spa water. The source loop can use a boiler or heat pump, while the pool water remains in its own circuit rather than passing directly through the heating equipment.
Can it be used with a boiler or heat pump?
Yes. The APOLLO Pool and Spa Heat Exchanger is designed to receive heat from a separate boiler or heat-pump circuit and transfer it into the pool or spa loop. The source equipment and exchanger must be sized together for the application.
What capacity options are available?
The available capacity tiers are 55, 155, 300, 600, 1,200, and 2,400 KBTU. Select the tier based on the required heat-transfer duty, pool or spa system, and operating conditions.
Should I choose Stainless 316L or Titanium?
Stainless 316L is intended for chlorinated pools. Titanium is intended for saltwater pools, saltwater spas, and other more aggressive water chemistry. Match the material to the actual water-treatment conditions rather than treating the options as interchangeable.
What connection sizes are available?
Connection size scales with capacity, from 3/4- to 1-inch connections at the 55K tier up to 3- to 4-inch connections at the 2,400K tier. Confirm the required connections against the pool and source-loop piping.
What is the inlet and outlet configuration?
The Pool and Spa Heat Exchanger uses same-side inlet and outlet ports. This configuration can simplify piping compared with designs that place the connections on opposite sides of the exchanger.
How do I size a pool and spa heat exchanger?
Choose a capacity tier based on the required heat-transfer duty, then match the material to the pool or spa water chemistry and confirm flow, pressure, and connection requirements. The Pool Heat Pump Calculator sizes the heat pump itself, not the heat exchanger.
Open the Pool Heat Pump CalculatorDoes the APOLLO Pool and Spa Heat Exchanger include a manual?
No published manual is currently available for this product. Contact an MBTEK specialist for installation, compatibility, and sizing questions before ordering.
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