AIR SOURCE HEAT PUMPS

UP TO 75% MORE ENERGY EFFICIENT THAN
STANDARD HEATING OPTIONS

LOW COST HOT TUB HEATING

A Vian Power Air Source Heat Pump can be up to 75% more energy efficient than standard heating options. Simply put, they produce more heat (energy) than they use in electricity (energy).

This relationship between the power used by the heat pump and the heat it generates is referred to as Coefficient of Performance (CoP). For example, if a heat pump has a CoP of 8, then it will produce 8 x units of heat for every one unit of electricity consumed.
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VIAN C5

 Vian Power C5 Heat Pump on/off model 

Our C5 model comes with a titanium heat exchanger, R32 eco-friendly refrigerant and an auto defrost mode. This is a small, entry level model perfect for smaller hot tubs.
Was £1680 including pump & fitting
Now £1344 

VIAN C5 PLUS

Vian Power C5 plus Heat Pump Inverter model

Our C5+ model is super compact for those difficult spaces. Fitted with a full DC inverter makes this model up to 20% more energy efficient than the C5.
Was £1860  including pump & fitting
Now £1488 

VIAN S7 PLUS

Vian Power S7 plus Heat Pump Inverter model

Our S7+ model is fitted with all the features of our C5+ model but is capable of not only heating hot tubs but also swim spas.
Our Best Seller
Was £2340 including pump & fitting
Now £1872

VIAN S9 PLUS

Vian Power S9 plus Heat Pump Inverter model

Our S9+ model is fitted with all the features of our C5+/S7+ model but is capable of not only heating hot tubs but also swim spas at a much faster rate.
Was £2580  including pump & fitting
Now £2064

VIAN C5

VIAN C5 C5 PLUS

VIAN C5 S7 HP & S9

HEAT PUMP SPECIFACTIONS

SLIDE 1
SLIDE 2
SLIDE 3
spec 5
DOWNLOAD BRCHURE

INSTALLATION / HOW IT WORKS

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

Location:
The heat pump requires a minimum of 500mm of inlet space and is recommended to have 1m of unobstructed space for the fan outlet.

Planning:
Each installation will vary, and a site survey to review and discuss the best fitment and location for the heat pump can be arranged. This is a great opportunity to discuss the best option for the installation of the heat pump and answer any questions.

Fitment:
When installing the heat pump some basic modifications to your hot tub or swim spa will be made. This is to plumb the heat pump into the heating and circulation system. There will be an inlet and an outlet pipe plumbed into the hot tub base or cabinet to provide circulation through the heat pump.

The fan in the air source heat pump draws air over a network of tubes that look a little like a car radiator.

These tubes are filled with an eco-friendly R32 refrigerant. The air then passes over the tubes warming up the refrigerant and turning it from a liquid into a gas.

This gas is passed through a compressor which increases the pressure and significantly raises the temperature of the gas, which is then passed through a titanium heat exchanger.

The swim spa or hot tub’s water circulation system is plumbed through the air source heat pump and the heat from the gas travels through the heat exchanger, which in turn heats the water from the hot tub or swim spa as it passes over it.

The refrigerant then cools and turns back into a liquid and starts the process all over again.

Due to how the system works, our air source heat pumps will still produce heat even if the ambient air temperature is below zero as the compression process of the refrigerant gas creates alot of heat.

Not only is this a far more cost-effective solution to heat your hot tub or swim spa, but it is also a much more eco-friendly option.
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REAL WORLD TESTING

The chart above shows the kWh used by the heat pump to maintain the set point of 40°C. The test period is for a 10 month period between the 8th December 2022 and the 7th September 2023.

The total kWh used by the heat pump over this period was 749.55. Accoring to Ofgem, from the 1st October 2023, new kwh rate will be set at 27.35p. With this pricing structure, the cost of this 10 month period at the coming rate £205, equating to an average cost of just £20.50 a month.
  • The hot tub is located outdoors in Chichester, West Sussex, UK, and not under a gazebo or shelter. All figures are just relating to the heating.
  • The electric heater is disconnected so all heating is supplied by the heat pump only.
  • We are testing a Vian 7kW S7 Plus Air Source Heat Pump which is set to boost mode. The hot tub is a mid-specification model of approx 1,550L of water. The hot tub is set to heat to 40°C.
  • We have used an older cover for these tests that is slightly waterlogged (to mimic real world). The pipes to the heat pump are not insulated.
  • The heat pump is within 1 metre of the hot tub. The hot tub has economy cycles set as follows: Economy from 10.00pm to 10.00am, 7 days per week. Second Economy mode from 1.00pm to 4.00pm.
Heat Pump 1
Heat Pump 2
Heat Pump 3
Heat Pump 4
Heat Pump 5
Heat Pump 6
Heat Pump 7

Contact Spafix Today

T: 023 9354 1154
E: info@spafix.co.uk

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2024 Spafix Services Ltd. All rights reserved. Credit is subject to status and affordability. Terms and Conditions Apply.
2024 Spafix Services Ltd. All rights reserved. Credit is subject to status and affordability. Terms and Conditions Apply. Spafix Services Ltd FRN: 741300, Unit B1 Hazleton Interchange, Lakesmere Road, Waterlooville, Hampshire, PO8 9JU is a credit broker, not the lender and is authorised and regulated by the Financial Conduct Authority. Credit is provided by Novuna Personal Finance, a trading style of Mitsubishi HC Capital UK PLC. Authorised and Regulated by the Financial Conduct Authority. Company Number: 06422739, VAT Number: 106654033

We are able to offer 0% finance over a period of up to and including two years with a deposit of 30% or greater. For a longer term or a lower deposit, we can provide an APR of 9.9%. Please note these figures are for a guide only, to provide an accurate quote on your final specification, please contact us.

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    Spafix Start

    This service is also ideal for a Spring re-commission. Your hut tub MUST be full of water when our engineer arrives.

    Price depending on location

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    This is our Winter shut-down service, to prepare your spa for the months it will not be used.

    Price depending on location

    Spafix Easyfresh

    Quarterly drain-down and refresh service

    Price depending on location

    Spafix Once

    Full annual clean and maintenance service

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