Hot Tub Heat Pump

Hot Tub Heat Pump

Arctic Heat Pump – North Americas only UL listed cold weather spa heat pump.

Heat pump technology has been widely adopted in the pool industry due to its significant cost savings. In fact, most pool heat pumps can save owners 70% or more in heating costs. However, these heat pumps have two major limitations.

  1. They only work during the pool swimming season and quickly lose their efficiency as the outdoor temperature drops.
  2. Their achievable output is the upper 80 degrees, much too cold for hot tub temperature.

Until now most spa owners were stuck with standard electric heaters however, electricity is becoming more and more expensive and will continue the upwards trend. Northern Lights has partnered with Arctic Heat Pumps to be the exclusive OEM hot tub supplier to use this technology. The Arctic heat pump produces between 14 Kw (high temperature rating) and 4.5 Kw (low temperature rating) of heat energy and can safely do so in temperatures as low 20 F (-7 C) while still providing homeowners operating cost savings over regular spa heaters. For those in climates exceeding this we offer the Hybrid Heat pump system that includes a backup 4 Kw ACC Spa Pack that will automatically provide extra heating power when required.

chiller heater unit

Chiller and Heater in one unit

While hot tub users most often reference the heating requirements, the Arctic Heat Pump is also a chiller if needed. That’s right, it can heat and cool based on a simple controller selection. Ideal for hot climates that need a retreat out of the hot summer heat! A cold-water plunge is a must for Sauna owners. Now you can quickly change your hot tub to a cold plunge tub! Cold water therapy has many health benefits and is growing in popularity in North America as we discover what the Nordic Culture has practice for centuries. Find out more about the health benefits of cold-water therapy.



Arctic Pool/Spa Heat Pumps can produce 104°F (40°C) maximum outlet water temperature.



The only pool heat pump in North America that has been designed to work in cold weather. Features such as hot gas defrost and reversing valve ensure the Arctic Pool and Spa Heat Pumps can provide useable heat energy in temperatures as low as -4°F (-20°C).



A titanium heat exchanger ensuring a long working life. Arctic Spa Heat Pumps use titanium to stand up to the harsh environment of a spa or a pool which can include high levels of chlorine, bromine, or salt.

Wi-Fi Enabled Controller

Wi-Fi Enabled Controller

Wi-Fi enabled controller allows for remote monitoring and control via the Smart Life App. Adjust your temperatures, change your heating mode, and get system alerts to notify you of any technical issues.

Save $

Save $

Save up to 80% on you pool or hot tub heating bill, with COP of up to 6.4. This means for every Kw of electricity you spend operating your Arctic Heat Pump you will output 6.4 Kw of heat energy, netting you 5.4 Kw of Free Heat! This is substantially better than any gas or electric heater on the market.



All Arctic Pool & Spa Heat Pumps are both heater as well as chillers. On automatic mode, the heat pump will maintain the ideal temperature by switching from heating to cooling as needed. Great for hot summer climates where a refreshing pool is welcomed in the heat waves.

How it works


Option 1
Circulation Only

Option 2
Circulation with Jets

Option 3
Heat Pump Hybrid with Electric Spa Pack

heating sequence
how it works

A heat pump should be installed with a bypass valve so that the flow rate can be adjusted in the system. If a chlorinator is being used it is recommended to place the heat pump upstream of the chlorinator.


Arctic Heat Pumps

DC INVERTER Air to Water Swimming Pool Heat Pump

 Model (Metal Spraying Shell)  ARCTIC 015ZA/B 25ZA/B
 Power Supply V/PH/Hz 220/1/50 (60) 220/1/50 (60)
Heating Capacity
kW 1.3~5.2 2.75~11
BTU/h 4436~17742 9383~37532
COP Ranger W/W 3.6~13 3.6~13
Heating Capacity (1) kW 5.2 11.0
BTU/h 17742 37532
COP (1)  A:30/W:28 W/W 6.2 6.2
Input Power (1) kW 0.84 1.77
Input Current (1) A 3.8 8.1
Heating Capacity (2) kW 5.2 11.0
BTU/h 17742 37532
COP (2)  A:24/W:28 W/W 5.60 5.60
Input Power (2) kW 0.93 1.96
Input Current (2) A 4.2 8.9
Heating Capacity (3) kW 5.2 11.0
BTU/h 17742 37532
COP (3)  A:15/W:28 W/W 4.8 4.8
Input Power (3)  kW 1.08 2.29
Input Current (3) A 4.9 10.4
Heating Capacity (4) kW 4.8 10.0
BTU/h 16378 34120
COP (4)  A:7/W:28 W/W 4.2 4.2
Input Power (4) kW 1.14 2.38
Input Current (4) A 5.2 10.8
Heating Capacity (5) kW 4.3 9.2
BTU/h 14672 31390
COP (5)  A:0/W:28 W/W 3.72 3.72
Input Power (5) kW 1.16 2.47
Input Current (5) A 5.3 11.2
Heating Capacity (6) kW 3.6 7.5
BTU/h 12283 25590
COP (6)  A:-7/W:28 W/W 3.16 3.16
Input Power (6) kW 1.14 2.37
Input Current (6) A 5.2 10.8
 Compressor   Rotary TWIN Rotary
 Compressor Qty   1 1
 Fan Qty   1 1
 Noise dB(A) 48 52
 Water Outlet/Water Inlet inch 1–1/2" 1–1/2"
 Water Flow Volume GPM 6.78 11.3
 Water Pressure Drop PSI 1.7 2.2
 Fan Direction   horizontal horizontal
 Refrigerant Type   R410A R410A
 Unit Net Dimensions (L/W/H) mm 930/360/550 1115/470/700
 Unit Shipping Dimensions (L/W/H) mm 1035/395/585 1205/525/725
 Net Weight kg 55 90
 Shipping Weight kg 58 96


  1. ①Heating:Outdoor air temp:30℃/24℃,Outlet water temp:28℃,Input water temp:26℃;
  2. ②Heating:Outdoor air temp:24℃/19℃,Outlet water temp:28℃,Input water temp:26℃;
  3. ③Heating:Outdoor air temp:15℃/12℃,Outlet water temp:28℃,Input water temp:26℃;
  4. ④Heating:Outdoor air temp:7℃/6℃,Outlet water temp:28℃,Input water temp:26℃;
  5. ⑤Heating:Outdoor air temp:0℃/-℃,Outlet water temp:28℃,Input water temp:26℃;
  6. ⑥Heating:Outdoor air temp:-7℃/-℃,Outlet water temp:28℃,Input water temp:26℃;