MBtek
APOLLO Lake Heat Exchanger

1 / 3

Geothermal Ground-Loop Alternative

APOLLO Lake Heat Exchanger

A submersible heat exchanger designed to sit directly in a lake, pond, or reservoir, acting as a ground-loop replacement for a geothermal (water-to-water) heat pump system.

Sets
1 set (for 4T Geothermal)
$9,951.35
$7,96120% OFF

Shipping$1,692Free

Save 20%

Product added to cart.

View cart

Complete your system

  • Free shipping
  • Secure checkout

Product details

  • Submersible heat exchanger for lakes, ponds, or reservoirs
  • Ground-loop replacement for geothermal heat pump systems
  • Passive design
  • AISI 316 stainless steel construction

Lake Heat Exchanger – Geothermal Water Source Heat Exchanger

High-efficiency submerged heat exchanger designed for geothermal systems, using natural water sources like lakes and ponds to deliver stable and reliable thermal exchange.

Key Benefits

  • High-efficiency heat transfer using natural water bodies
  • Passive operation with no moving parts for silent performance
  • Durable AISI 316 stainless steel construction for corrosion resistance
  • Low-maintenance design ideal for long-term use
  • Eco-friendly solution reducing energy costs and carbon footprint
  • Customizable for multi-module installations with optimized headers

Specifications

  • Material: AISI 316 Stainless Steel
  • Plate Size: 6' x 7' (1.85m x 2.30m)
  • Ports: 1-1/4" flanged NPT (inlet/outlet)
  • Manifold: 3" for pressure distribution
  • Operational Pressure: 100 psi
  • Operational Flow: 9–11 GPM
  • Installation: Submerged in lakes, ponds, or reservoirs
  • Operation: Passive, silent, no moving parts

For multi-module setups, custom headers can be designed to match your project’s layout—saving time, reducing installation costs, and improving system efficiency.

Material
AISI 316 stainless steel
Plate size
6'×7'
Ports
1-1/4" flanged NPT input/output
Operating pressure
100 psi
Operating flow
9–11 GPM
Manifold
3" for pressure distribution
Engineered for
APOLLO 4-ton and 6-ton geothermal systems

MBTEK Google Reviews

Verified Google reviews from MBTEK customers across our heating and hydronic product lines.

Loading reviews…

Installation help and contact

Need an installer?We made it easy for you.

Listed installers are independent contractors, not MBTEK employees. They're skilled professionals familiar with our products and capable of efficient installation.

Any questions?Reach out to us.

Our team can help with product questions, sizing guidance, and next steps.