Do Hot Tub Heat Pumps Actually Save Money?

With UK energy prices climbing, cost-efficient heating solutions for hot tubs are more important than ever. The Vian Nexus heat pump range, offered by Spafix, combines cutting-edge technology with exceptional energy efficiency – making them a compelling upgrade. Let’s explore just how much you can save in 2025 with the Nexus range.

What Makes the Vian Nexus Range Stand Out?

The Vian Nexus series includes three key models—each designed to match different temperature challenges and usage needs.

Nexus 5 | COP up to 13, operates down to −10 °C, compact design, full inverter EEV technology, smart-compatible.

Nexus EVO 6 | COP up to 12.5, works reliably in colder conditions down to −20 °C, features hybrid logic and heated bands.

Nexus EVO 7 EVI | COP up to 14.2, superior cold-weather performance down to −25 °C, enhanced vapor injection technology.

Benefits that back this up:

• Save up to 70% on heating costs vs. traditional electric heaters
• Smart and Hybrid Logic deliver both efficiency and rapid heating
• WarmCore anti-freeze heating, ideal for UK winters
• Sleek, compact design blends easily into your outdoor setup

How Much Can You Really Save?

The Vian Nexus range offers staggering efficiency thanks to their high Coefficient of Performance (COP)—that means one unit of electricity can provide up to fourteen units of heat.

Real-World Example (Spafix testing, Dec–Sep 2022):

• Total usage: 749.55 kWh
• At current UK rate (~27.35p/kWh), this equates to £205 over 10 months—just £20.50 per month to maintain 40 °C water.

Estimated Savings:

• Electric heater: approx £2–£3/day = £600–£900/year
• Nexus heat pump: £205 over 10 months → ~£250/year
• Annual savings: ~£350–£650

Is It Worth the Investment?

Consider This:

• Installation cost: £1,475–£2,049 (model dependent)
• Payback period: Typically 12–24 months, depending on usage

Ideal for frequent spa users, holiday lets, or anyone prioritising sustainable, economical heating—even in winter.

Why Choose Spafix for Your Nexus Heat Pump?

At Spafix, we don’t just supply—you get:

• Expert recommendation for the perfect Nexus model
• Full installation and setup service
• Annual servicing to maintain peak efficiency
• Ongoing support across the UK

FAQs

Do these heat pumps work in winter?
Yes—with WarmCore and EVI/HYBRID systems, Nexus units operate down to −25 °C reliably.

Can I control my heat pump remotely?
Absolutely. Built-in WiFi allows smart control via mobile—adjust settings anytime.

What’s the warranty?

• 2 years on the whole product
• 3 years on fan, motor, heat exchanger
• 5 years on compressor

Are Nexus heat pumps eco-friendly?
Yes—they use the low-global-warming refrigerant R32, and high COPs mean reduced electricity usage and carbon emissions.

Final Verdict: Nexus Heat Pumps are Worth It

If you use your hot tub regularly – or want a dependable, eco-efficient solution for colder-run climates – Vian Nexus heat pumps are one of the best investments you can make today.

Want expert advice on choosing and installing a Nexus unit?

Contact Spafix now to learn more or book your heat pump installation.