What is an Air Source heat pump??

Air Source Heat Pumps are a sustainable low-carbon alternative to traditional hot tub heating systems.

Air Source Heat Pumps are one of the most economical ways to heat your hot tub, helping you to reduce your carbon footprint and your monthly energy costs.

Air Source Heat Pumps are becoming well known as renewable heating sources that deliver highly efficient heating. They are becoming an increasingly popular choice for those who are looking to install renewable energy solutions in their home.

Our new Air Source Heat Pumps are compatible with all Hot Tubs and Swim Spas. 

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heat pump illustration

How it works

Heat pumps are much like an air conditioner, they just work in reverse. Instead of taking air from a space, removing the heat and returning it, a heat pump takes large amounts of air from the atmosphere, the heat contained in the air is removed and transferred to water from the Hot Tub passing through the unit.

Advantages

  • Maintains the spa at a comfortable temperature.
  • Clean, safe and easy to operate.
  • Heat on demand, not reliant on weather conditions.
  • Durable – with proper maintenance, it can last up to 15 years.
  • Varying temperature options.

Requirements  

 

1. Electrical requirements – The heat pump does not need any additional electrical installation on site as the unit will take its power from the hot tub or swim spa.

 

 

2. Installation – Each installation will vary, we will review and discuss the best fitment and location for the heat pump with you. We will undertake some basic modifications to your hot tub/swim spa to plumb the heat pump into the heating system. There will be an inlet and an outlet pipe plumbed into the hot tub base/cabinet to provide circulation through the heat pump.

 

 

3. Location – The heat pump requires a minimum of 450mm of inlet space and is recommended to have a minimum of 1500mm of space for the fan outlet.

 

 

Due to how the system works, our air source heat pump will still produce heat even if the ambient air temperature is below zero as the compression of the refrigerant creates heat. Not only is this a far more cost-effective solution to heat your hot tub, it is also a much more eco-friendly option.

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SAVINGS WHEN YOU INSTALL A HEAT PUMP

Standard Hot Tub using a 3kw Heater.
Based on a unit rate of electric 28p per kWh

Initial heat up.
A 3 kw heater on will normally heat a 1200 litre Tub at a rate of 2.5 degrees C per hour.

Start temp 16c
Target Temp 38c

22 degrees C needed to reach temp.
This should take around 9 hours using 3kw per hour. 

3kw per hours will cost 84p x 9 hours = £7.56 to heat your Hot Tub. Round this up to £8 to allow for the circulation pump which pushes the water around the system.

General use.
When a Hot Tub is used for an hour it will normally lose around 4 degrees C.
To recoup this heat your Hot Tub will need to run for around 2 hours. 
Cost £1.68

The Hot Tub will also need to top of the heat during the day and night, depending on the Hot Tubs insulation you could be heating for upto 4 hours a day. Costing £3.36. Worst case.

Your daily running cost can be up of £5 per day.
(Still about the same as pint of beer in most pubs!)

Annual costs
4 Water changes per year, reheating up to 38c – £8 x 4 = £32
Daily running cost if left at 38 degrees constantly and used every day £5 x 365 = £1,825
Add these together and if you use your Hot Tub for 1 hour every day you will be looking at a cost around £1,857

Cost based on 28p kWh, 4 water changes per year and daily use on 1 hour.

Hot Tub installed with a DuraTech 12kw Heat Pump
Based on a unit rate of electric 28p per kWh

Initial heat up.
A 12k kw DuraTech Air Source heat pump will normally heat a 1200 litre Tub at a rate of 5 degrees C per hour. Input electric is a maximum of 1.5 kWh

Start temp 16c
Target Temp 38c

22 degrees C needed to reach temp.
This should take around 4.5 hours using 1.5kw per hour. 

1.5kw per hours will cost .42p x 4.5 hours = £1.89 to heat your Hot Tub. Round this up to £2.10 to allow for the circulation pump which pushes the water around the system.

General use.
When a Hot Tub is used for an hour it will normally lose around 4 degrees C.
To recoup this heat your Hot Tub will need to run for around 1 hour. 
Cost 42p

The Hot Tub will also need to top of the heat during the day and night, depending on the Hot Tubs insulation you could be heating for upto 2 hours a day. Costing 84p. Worst case.

Your daily running cost can be up of £1.26 per day.

Annual costs
4 Water changes per year, reheating up to 38c – £2.10 x 4 = £8.40
Daily running cost if left at 38 degrees constantly and used every day £1.26 x 365 = £459.90
Add these together and if you use your Hot Tub for 1 hour every day you will be looking at a cost around £468.30.

ANNUAL SAVING £1,388.70

Cost based on 28p kWh, 4 water changes per year and daily use on 1 hour.

Choose your AirSource Heat Pump