Catch the Sunshine!
You have no items in your shopping cart.
The most trusted name in greenhouses & supplies • Serving the horticulture industry since 1946!
Greenhouse Manufacturer, Distributor, Importer-Exporter
Menu
AQ-HP Gas Fired Heating System for Aquaponic & Hydroponic AQ-HP Gas Fired Heating System for Aquaponic & Hydroponic AQ-HP Gas Fired Heating System for Aquaponic & Hydroponic

AQ-HP Gas Fired Heating System for Aquaponic & Hydroponic

The AQ-HP Gas-Fired Heating System is an efficient heating solution for aquaponic or hydroponic systems. It runs on natural gas or off-grid propane and offers off-grid capabilities. It is designed to keep fish warm and happy while reducing energy costs.
*
$0.00
Ship to
*
*
Shipping Method
Name
Estimated Delivery
Price
No shipping options

Product Details

  • All AquaHeat systems come with a natural gas or propane hot water heater. The heater unit must be vented following the instructions provided with the unit.
  • The entire heating system can be run off a car battery with the supplied 12 v battery cable
  • DC circulation pump – used for circulating hot water through the stainless steel heat exchanger and the heater unit.
  • Thermostat controller and sensor wire
  • 50′ Compact Stainless Steel Immersion Coil
  • Fully Mounted and plumbed on backer board
  • Ready for hookup to gas service

Hot Water Heater Product Details Standard to All Systems 

  • Automatic Electrical Pulse Ignition with No Standing Pilot and No Electric Hookup Required (Operated by 2 Size-D Batteries, Not Included);
  • IC Water Control Device;
  • Ultra Low Water Pressure Start-up;
  • Thermal Efficiency: >=85%;
  • Gas Pressure: 2800Pa (0.41 psi)
  • Exhaust Type: Duct;
  • Gas and Water Inlet/Outlet: 1/2″;
  • Winter/Summer control;
  • Min/Max Water Flow Adjustment;
  • Flame Adjustment for Temperature Setting

Safety Features Standard with All Systems

  • Gas leak and overheating safety control;
  • Flame failure safety device;
  • Incomplete combustion safety device;
  • Anti-dry combustion safety device;
  • Over water pressure protection device;
  • Auto cutoff protection in case of accident.

Specific Heater Specifications by Size

6L (1.6 GPM) Liquid Propane or Natural Gas Tankless Water Heater

  • Thermal Output: 12,000 Watt / 40,900 Btu/h
  • Temperature Rise: 45 degrees F at 1.6 GPM
  • Minimum Working Water Pressure: 40 psi
  • Dimensions: 17 1/4″ H x 12″ W x 5 1/2″ D
  • Net Weight: 12 lb
  • Requires Vent (3″ Double Wall Flue), Not Included.

10L (2.65 GPM) Liquid Propane or Natural Gas Tankless Water Heater

  • Thermal Output: 20,000 Watt / 68,242 Btu/h
  • Temperature Rise: 45 degrees F at 2.65 GPM
  • Minimum Working Water Pressure: 40 psi
  • Dimensions: 23″ H x 13″ W x 7″ D
  • Net Weight: 19 lb
  • Requires Vent (4″ Double Wall Flue), Not Included.

16L (4.23 GPM) Liquid Propane or Natural Gas Tankless Water Heater

  • Thermal Input: 32,000 Watt / 109,260 Btu/h
  • Temperature Rise: 45 degrees F at 4.23 GPM
  • Minimum Working Water Pressure: 45 psi
  • Dimensions: 27″ H x 16 1/2″ W x 8″ D
  • Net Weight: 30.20 lb
  • Exhaust Pipe: 5″ double-wall type B vent pipes (not included)

Not Included

  • 2 standard D-cell batteries
  • 12V DC deep cycle marine battery
  • Requires Vent (4″ Double Wall Flue), Not Included

Additional Information

  1. Propane or Natural Gas is supplied to the AquaHeat unit. (Unit must be properly connected to gas service and tested following instructions)
  2. Power is supplied to the digital thermostat controller
  3. The temperature drops below the set point, measured by the thermostat wire in your sump or fish tank
  4. The digital thermostat controller activates the DC circulation pump to move water through the heat loop (indicated with a mechanical pump sound)
  5. Water pressure activates gas flow (indicated with slight hissing sound)
  6. Water pressure also triggers the igniter, which is powered by the D batteries (indicated by a clicking sound)
  7. Gas ignites the flame to start the burners and heat water
  8. Water is recirculated through the AquaHeat and the stainless steel heat exchanger (located in your sump or fish tank). The heat exchanger should always be submerged.
  9. Heat is exchanged between the heat exchange coil and the water in your aquaponic system.
  10. Once the temperature reaches the high temp set point, the thermostat turns off the DC circulation pump.
  11. This in turn shuts off the gas flow and allows the boiler to cool down.
  12. Once the thermostat detects the system water has cooled below the low set point, the process repeats.

This heat-loss Btu calculator will help you decide on the size of the heater needed for your greenhouse. First, you need to know the Surface Area of your greenhouse. Use our Greenhouse Surface Area Calculator to find the total square feet of the exposed surface area of your greenhouse. Then, use our Greenhouse Heater BTU Calculator to find out the minimum heater BTU rating to keep your greenhouse at an inside desired temperature during the winter.

Company info

Customer services

My account

Our Offers

Payment options

© 2025 Gothic Arch Greenhouses. All rights reserved. Greenhouse Manufacturer, Project Consulting, Design, Product Sales & Service.