RL Spa installing an efficient air-source heat pump on a hot tub

Save up to 75% on hot tub heating costs

Hot Tub Heat Pump Installation Supplied & Installed

Cut running costs and heat your spa more efficiently with a professional RL Spa install. Hot tub heat pumps from £1290 supplied and installed and swim spa heat pumps from £2999 supplied and installed.

Send us a photo of your hot tub or swim spa on WhatsApp and we’ll recommend the right heat pump for your setup.

Hot tub heat pumps from £1290 installed Swim spa heat pumps from £2999 installed

Hot tub heat pump installation by RL Spa helps homeowners, holiday parks and lodge owners reduce electricity costs with quiet, efficient air-source heat pumps, tidy pipework and professional commissioning.

Our engineers install energy-efficient air source heat pumps designed specifically for hot tubs and swim spas. Each system is carefully sized to match your spa, ensuring reliable heating and maximum efficiency all year round.

Heat Pump Options for Hot Tubs & Swim Spas

Hot tub heat pumps from £1290 supplied & installed • Swim spa heat pumps from £2990 supplied & installed

We size each system correctly for your spa, usage and pipe run. Send us a photo on WhatsApp or call for fast advice and a no-obligation quote.

Best for most hot tubs

Ultra-quiet • High efficiency • Wi-Fi controlled

Hot tub heat pumps from £1290 installed
Swim spa heat pumps from £2990 installed

3.5kW suits selected smaller setups, 9kW suits most domestic hot tubs, and 13kW is ideal for swim spas, larger volumes and heavier use.

  • Approx. 43dB(A) at 1 metre (ultra-quiet)
  • High COP efficiency & strong energy savings
  • Compatible with most hot tubs when professionally installed
Compact hot tub option

3-in-1: Heating • Cooling • Chilling

Best for selected domestic hot tubs
Final sizing confirmed before install

Compact air source heat pump with Wi-Fi control — manage temperature and mode from your phone.

  • Great option for many domestic hot tubs
  • Cooling mode for warmer weather
  • Chilling mode for cold-plunge style use (where suitable)
Best for swim spas & high use

Integrated heat pump tech • Extreme efficiency

Compatible with RotoSpa hot tubs
Ideal for larger spas and higher-demand setups

Available in 8.8kW and 12kW — ideal for larger spas, swim spas and higher-usage systems.

  • Up to 75% reduction in heating costs (setup dependent)
  • Typical savings often quoted around £600/year for 5–6 person spas
  • Great for larger spas and high-usage systems

EcoSpa Heat Pumps – 3.5kW, 9kW & 13kW

A premium, ultra-quiet air source heat pump solution for hot tubs and swim spas. 3.5kW suits selected smaller setups, 9kW suits most hot tubs, while the 13kW option is ideal for swim spas, larger volumes and heavier use.

Hot tub heat pump systems from £1290 supplied & installed.
Swim spa heat pump systems from £2990 supplied & installed. Final price depends on your spa size, pipe run, location and installation requirements.

Why customers choose this option

  • Approx. 43dB(A) at 1 metre for very quiet operation.
  • Strong COP efficiency for lower electricity costs.
  • Wi-Fi control for easy temperature management.
  • Suitable for most hot tubs and many swim spa installs.
  • Professionally supplied, installed and commissioned by RL Spa.

Poolex O-Spa – 5kW & 7kW (Wi-Fi + 3-in-1)

Compact air source heat pump with Wi-Fi control and Heating / Cooling / Chilling modes.

This can be a great choice for selected domestic hot tubs where a compact, versatile setup is preferred. Final suitability depends on spa size and usage.

What it’s best for

  • Domestic hot tubs with straightforward control.
  • Customers wanting heating plus cooling/chilling functions.
  • Compact installations where space matters.

SpaNET SV Series – 8.8kW & 12kW

High-efficiency integrated heat pump designed for larger spas, higher-use systems and swim spas.

Compatible with RotoSpa hot tubs. Final price depends on model choice, installation layout and usage.

Why customers choose this option

  • Up to 75% lower heating costs (setup dependent).
  • Great for larger spas and heavier year-round use.
  • Typical savings often quoted around £600/year for 5–6 person spas.
  • Professionally installed by RL Spa for tidy, reliable performance.
  • Compatible with selected RotoSpa hot tubs.

Lower running costs • Faster heating • Professional installation

Why Choose a Hot Tub Heat Pump Installation?

A hot tub heat pump installation uses outdoor air to heat your spa far more efficiently than a standard electric heater. That means lower electricity bills, faster warm-up times and a more affordable spa to run all year round.

Whether you want to cut costs on a domestic hot tub or improve efficiency on a larger swim spa, RL Spa supplies and installs correctly sized systems with tidy pipework, neat electrics and professional commissioning.

Hot tubs from £1290 supplied & installed • Swim spas from £2999 supplied & installed
  • Save up to 75% on heating costs compared with a traditional electric element.
  • Heat your spa more efficiently and reduce the cost of regular use.
  • Quiet outdoor operation with compact, modern inverter units.
  • All-season performance with smart defrost and stable water temperature.
  • Great for hot tubs and swim spas when sized correctly for the setup.
  • Installed by RL Spa with neat plumbing, bypass kit integration and commissioning.
Hot tub heat pump installation by RL Spa beside a modern hot tub
Example RL Spa installation — compact, quiet, efficient and professionally fitted.

How it works • Why it saves money • Is it right for your spa?

How Heat Pumps Work — and Why They Save You Money

A hot tub heat pump installation does not create heat in the same way as a standard electric heater. Instead, it pulls warmth from the outside air and transfers it into your spa water far more efficiently. That is why a properly sized system can help reduce running costs by up to 75% while keeping your spa warm and ready to use.

1) It takes heat from the air

Even in cooler UK weather, the unit draws usable warmth from the outside air to start the heating process.

2) It boosts that heat efficiently

The compressor raises the temperature and transfers the heat into your water using far less electricity than a standard element.

3) Your spa stays warm for less

Once installed and sized correctly, your hot tub or swim spa can heat more efficiently and cost much less to run.

Typical Benefits
  • Up to 75% lower heating costs compared with a standard electric heater.
  • More affordable day-to-day spa use.
  • Faster warm-up and more stable water temperature.
  • Lower overall electricity usage for frequent spa owners.

Actual savings depend on ambient temperature, target water temperature, spa size, cover quality and usage.

Will It Work With My Spa?
  • Suitable for many hot tubs and swim spas when sized correctly.
  • Installed with bypass kit integration and tidy plumbing where required.
  • Quiet outdoor placement with neat, professional RL Spa installation.
What about winter performance?

Cold-climate models include defrost control and are chosen according to how you use your spa. RL Spa sizes the system properly so you get reliable year-round performance.

Hot tub heat pumps from £1290 supplied & installed
Swim spa heat pumps from £2999 supplied & installed

Send us a photo of your hot tub or swim spa on WhatsApp and we’ll help recommend the right option for your setup.

Recent Heat Pump Installations by RL Spa

A few examples of our professional installations showing compact placement, tidy pipework and clean commissioning for hot tubs and swim spas.

Want to know if a heat pump will work with your hot tub or swim spa?

Recent Heat Pump Installations

A few examples of our tidy pipework, compact placement, and neat commissioning.

Woodland lodge hot tub — heat pump with insulated bypass and service access
Woodland lodge install — quiet and efficient.
Under-deck plumbing with insulated lines and tidy concrete base
Under-deck plumbing with insulated lines.
Holiday cabin with hot tub — heat pump mounted neatly beside the deck
Holiday cabin — compact side placement.
Heat pump set against frosted privacy panels — compact outdoor install by RL Spa
Frosted privacy panels with tidy placement.
Heat pump beside raised-deck privacy screen — compact outdoor placement by RL Spa
Compact outdoor placement by RL Spa.
Heat pump beside hot tub on paved patio — tidy side install with easy service access
Patio install — easy service access.

Holiday parks • Lodges • Caravan sites • Multi-unit installs

Hot Tub Heat Pump Installation for Holiday Parks, Lodges & Caravan Sites

For parks and accommodation providers running hot tubs across multiple units, a professionally planned hot tub heat pump installation can dramatically reduce running costs while keeping tubs guest-ready. These systems are ideal where weekly water changes, fast reheating and energy efficiency all matter.

RL Spa supplies and installs heat pump systems for holiday lets, lodges and caravan parks looking to improve turnaround times, reduce electricity use and maintain reliable performance across single or multiple tubs.

  • Faster guest turnaround after weekly drain and refill, helping tubs get back to temperature before the next check-in.
  • Major energy savings at scale — especially valuable for parks with multiple tubs running year-round.
  • Quiet inverter performance for a better guest experience and more stable heating.
  • Reduced strain on standard electric heating and improved operating efficiency.
  • Professionally planned multi-unit installations with tidy pipework, correct sizing and commissioning by RL Spa.
Whether you operate a handful of holiday lodges or a larger caravan park, RL Spa can help design a practical, cost-effective heat pump setup to keep tubs ready for guests while reducing running costs.
Hot tub heat pump installation at a caravan lodge with compact unit and insulated pipework
Caravan lodge installation by RL Spa — compact placement, insulated pipework and a clean professional finish.

FAQ – Hot Tub Heat Pump Installation

How much does a hot tub heat pump installation cost?
Hot tub heat pump installations start from £1290 supplied and installed. Swim spa heat pump installations start from £2999 supplied and installed. Final price depends on the model, spa size, pipe run and installation requirements. We confirm the correct option before work begins.
Can you add a heat pump to my existing hot tub or swim spa?
Yes. In many cases we can retrofit a heat pump to an existing hot tub or swim spa using the correct plumbing layout, bypass kit and professional integration with your setup.
How much can I save on running costs?
A properly sized system can reduce heating costs by up to 75% compared with a standard electric heater. Actual savings depend on weather, target temperature, insulation, cover condition and how often the spa is used.
Are heat pumps noisy?
Modern inverter heat pumps are designed to run quietly outdoors. RL Spa also considers placement and pipework layout to help minimise noise near seating or relaxation areas.
Do air-source heat pumps work in winter?
Yes. Cold-climate models are designed to operate in lower temperatures and include defrost functions for reliable year-round use when correctly specified for the spa and usage pattern.
Will a heat pump work with my hot tub?
In many cases, yes. Suitability depends on your spa model, water volume, available space, pipe layout and how you use the tub. The quickest way to check is to send RL Spa a photo of your hot tub or swim spa on WhatsApp.
Do you service and repair heat pumps?
Yes. We can help with maintenance, diagnostics and issues involving heat pump plumbing, flow, sensors and related control problems.
Which areas do you cover?
RL Spa is based in Sutton Coldfield and covers the West Midlands and surrounding areas. If you are unsure whether we cover your location, call or WhatsApp us and we will let you know.

Our Simple 3-Step Installation Process

1) Quick Survey

We review your hot tub or swim spa, confirm the correct heat pump size, and check pipe routes and electrics so we can provide a clear fixed quote.

2) Professional Installation

RL Spa installs the system with bypass kit integration, insulated pipework, weatherproof electrics and neat commissioning.

3) Setup & Handover

We set the correct temperature settings, explain the controls, and show you how to run the system for the lowest possible energy cost.

Hot tub heat pumps from £1290 supplied & installed
Swim spa heat pumps from £2999 supplied & installed

Warranty: Manufacturer warranty on the heat pump plus RL Spa workmanship guarantee.

Professional Hot Tub & Spa Servicing and Repairs

RL Spa are experienced specialists in keeping hot tubs and swim spas clean, safe and fully working. Alongside heat pump installations we also provide regular spa servicing, diagnostics and repairs for many leading brands.

Get a Heat Pump Quote

Send RL Spa a photo of your hot tub or swim spa and we’ll help recommend the right heat pump for your setup. We can size the system correctly and advise on the best option for your spa, usage and location.

Hot tubs from £1290 supplied & installed • Swim spas from £2999 supplied & installed
Best way to contact us:
WhatsApp us a photo of your hot tub or swim spa for quicker advice.
Coverage: Installations for homes, holiday parks, lodges and commercial sites.

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Quote request

The more details you add, the easier it is for us to recommend the right heat pump and quote accurately.

Why Install a Heat Pump on Your Hot Tub or Swim Spa?

A professional hot tub heat pump installation allows spa owners to heat their water far more efficiently than traditional electric heaters. Instead of generating heat directly, an air-source heat pump transfers warmth from the surrounding air into the water, delivering several times more heat energy for the same electricity used.

This means a properly sized hot tub heat pump installation can dramatically reduce running costs while maintaining consistent water temperature. Many customers see savings of up to 75% on heating costs depending on usage and outdoor temperatures.

Professional Installation by RL Spa

RL Spa specialises in professional hot tub heat pump installation for domestic hot tubs, swim spas, holiday park spas and commercial spa facilities. Each installation is designed to integrate with your existing filtration system using a bypass kit and properly sized pipework to ensure optimal performance and reliability.

Whether you own a private hot tub at home or operate multiple tubs at a holiday park, our hot tub heat pump installation service helps reduce electricity usage while ensuring your spa heats quickly and remains guest-ready year-round.