Vian Power C5 Heat Pump (HP-VP500) – 5kW Efficient Hot Tub Heating System 🌊💨

Transform your hot tub experience with the Vian Power C5 Heat Pump – the smart, energy-efficient alternative to traditional electric heaters. Delivering up to 5kW of reliable heating power with an impressive COP of 6.16, this compact powerhouse can reduce your hot tub running costs by up to 80% compared to standard resistance heaters.

Perfect for hot tubs up to 15,000 litres (15m³), the Vian C5 operates efficiently in temperatures ranging from -5°C to 40°C, making it your ideal year-round heating solution. With whisper-quiet operation at just 48dB and a durable titanium heat exchanger, you’ll enjoy luxury spa comfort without the hefty electricity bills.

Massive Energy Savings 💰

The Vian C5 delivers incredible efficiency with a Coefficient of Performance (COP) of up to 6.16 at 25°C – meaning for every 1kW of electricity consumed, you get 6.16kW of heating power. Compare this to traditional electric heaters with a COP of just 1, and the savings speak for themselves. Based on real-world testing, users report heating costs as low as £0.50-£2.00 per day depending on weather conditions.

Eco-Friendly Technology 🌍

Using R32 refrigerant, the Vian C5 has a significantly lower global warming potential than older refrigerants, making it better for the environment. Air source heat pumps extract renewable heat from the air, reducing your carbon footprint while keeping your spa perfectly warm.

Whisper-Quiet Operation 🔇

At just 48dB @ 1 metre (quieter than a normal conversation), the Vian C5 won’t disturb your relaxation or annoy the neighbours. The advanced rotary compressor and optimized fan design ensure smooth, quiet operation even during continuous heating cycles.

Built to Last 💪

The titanium heat exchanger resists corrosion from pool chemicals and hard water, ensuring long-term reliability. The robust ABS casing withstands outdoor weather conditions, and the compact design (505 x 360 x 545mm, 27kg) makes installation straightforward.

Year-Round Performance ❄️☀️

Unlike cheaper heat pumps that struggle in cold weather, the Vian C5 operates effectively in ambient temperatures from -5°C to 40°C. Whether it’s a chilly winter evening or a warm summer day, your spa stays at the perfect temperature.

Hot Tub Sizing Guide 🌊

Is the Vian C5 Right for Your Hot Tub?

Maximum Recommended Volume: 15,000 litres (15m³)

Estimated Heat-Up Times ⏱️

Understanding how quickly your hot tub will heat helps you plan your spa sessions. Here are estimated heat-up times for the Vian C5 under various conditions.

Formula Used: Time (hours) = (Volume in m³ × Temperature Rise in °C × 1.16) ÷ Heat Pump kW Output

Standard Heat-Up Scenarios (From 15°C to 40°C)

Quick Top-Up Scenarios (From 35°C to 40°C)

⚠️ Important Disclaimers:

• These are estimates only based on theoretical calculations
• Actual heating times vary based on: insulation quality, cover condition, wind exposure, starting water temperature, ambient humidity, and heat pump placement
• Well-insulated hot tubs with quality covers will heat faster
• Times assume continuous operation without filtration cycles interrupting heating
• Colder ambient temperatures significantly affect performance (as shown in the table)

📄 Downloads & Documentation

Complete Installation & User Manual 📥
Download User Manual HP-VP500 (opens in new tab)
Comprehensive 10-page guide covering installation instructions, electrical connections, safety requirements, control panel operation, parameter settings, troubleshooting, and maintenance procedures. Essential reading before installation.

Real-World Performance Data 📊

Temperature-Based Performance Table

What This Means for You:
During mild UK weather (15-20°C), the Vian C5 operates at peak efficiency. Even in colder conditions (5-10°C), it still delivers 3-4 times more heat energy than it consumes in electricity – vastly more efficient than any electric heater.

Typical Daily Running Costs 💷

Based on real-world testing over 31 days (December 2022 – January 2023) with a 1,550L hot tub maintained at 40°C:

Compare to Standard 3kW Electric Heater:
A traditional electric heater would use approximately 12-18 kWh per day in similar conditions, costing £3.60-£5.40 daily – that’s 3-5 times more expensive!

Annual Savings: £600-£1,200+ compared to electric heating (depending on usage patterns)

Complete Technical Specifications 📋

Heating Performance

Operating Parameters

Construction & Components

Physical Specifications

Electrical Requirements

Installation Requirements 🔧

Space Clearances (Critical)

⚠️ Minimum clearances must be maintained for safe operation:

• Rear and Sides: 500mm minimum clearance
• Front (Fan Side): 1,000mm+ unobstructed space for airflow
• Top: No obstructions directly above unit
• Overall: Do not place anything within 1 meter radius

Installation Checklist

✅ Foundation: Flat, level concrete pad or reinforced decking (minimum 21kg/mm² support)
✅ Location: Well-ventilated outdoor area, protected from direct rainfall if possible
✅ Drainage: Ground-level drainage or drainage channel nearby to handle condensate
✅ Electrical: Dedicated circuit with RCD protection, installed by qualified electrician
✅ Plumbing: Bypass valve system strongly recommended (allows system operation when heat pump is off)
✅ Water Flow: Circulation pump capable of 2.5m³/h (41.6 L/min) minimum
✅ Pipe Insulation: All external pipework must be insulated to prevent heat loss

What’s Included

• Vian Power C5 Heat Pump unit (HP-VP500)
• LED wire controller with digital display
• 5-meter H07RN-F power cable
• Rubber mounting feet
• Installation manual and documentation
• Factory pre-charged with R32 refrigerant

What You’ll Need (Not Included)

• Bypass valve kit (highly recommended)
• PVC pipe and fittings (32mm or 38mm to match your system)
• Pipe insulation
• PVC adhesive and primer
• Electrical cabling and protection devices
• Wall plugs/mounting hardware (if required)

Professional Installation Recommended

While the Vian C5 can be installed by competent DIYers, we strongly recommend professional installation to ensure:

• Correct electrical connections and safety compliance
• Optimal plumbing configuration with bypass system
• Proper placement for maximum efficiency
• Warranty validity (some warranties require professional installation)

Key Features & Benefits 🌟

Advanced Energy Technology

✅ On/Off Control System – Reliable, proven technology that starts and stops to maintain temperature
✅ R32 Refrigerant – Environmentally friendly with lower global warming potential
✅ Rotary Compressor – Smooth, efficient operation with excellent reliability
✅ Titanium Heat Exchanger – Superior corrosion resistance, especially in hard water areas

Smart Temperature Control

✅ Digital LED Controller – Easy-to-read display showing current and target temperatures
✅ Precise Temperature Setting – Adjustable from 15°C to 40°C in 1°C increments
✅ Automatic Temperature Maintenance – Set it and forget it operation
✅ Adjustable Parameters – Fine-tune defrost settings, restart temperatures, and more

Weather Protection Features

✅ Auto-Defrost Function – Automatically defrosts when needed in cold weather
✅ Anti-Freeze Protection – Protects the unit and your plumbing in freezing conditions
✅ Water Flow Switch – Prevents operation without adequate water flow (protects heat exchanger)
✅ Weatherproof Construction – ABS casing suitable for year-round outdoor use

Safety & Monitoring

✅ Multiple Sensor Protection – Water temperature, coil temperature, and ambient temperature sensors
✅ Error Code Display – Clear fault codes for easy troubleshooting
✅ Low Pressure Protection – Protects compressor from damage
✅ Super-Cooling Protection – Prevents water temperature dropping too low

User-Friendly Operation

✅ Simple Button Controls – On/off, temperature up/down, mode selection
✅ Fahrenheit/Celsius Display – Choose your preferred temperature units
✅ Visual Indicators – Red LED for heating mode, green LED for defrost mode
✅ 5-Meter Control Cable – Flexible placement options for the controller

Frequently Asked Questions ❓

General Operation

Q: How much will the Vian C5 really save me compared to my electric heater?
A: Based on real-world testing, you can expect savings of 60-80% on heating costs. A typical 1,500L hot tub maintained at 40°C costs approximately £1-£2 per day with the C5, compared to £4-£7 per day with a standard 3kW electric heater. Annual savings typically range from £600-£1,500 depending on your usage patterns and local electricity costs.

Q: How loud is the Vian C5 in actual use?
A: At 48dB measured from 1 meter away, it’s similar to a quiet conversation or a modern refrigerator. Most users report it’s barely noticeable, especially when placed a few meters from the house. It’s significantly quieter than most pool pumps or outdoor air conditioning units.

Q: Will the Vian C5 work with my existing hot tub?
A: Yes! The Vian C5 is compatible with virtually all hot tub models, including older Chinese packs and standard spa systems. You’ll need either 32mm (1.25″) or 38mm (1.5″) plumbing connections. A bypass valve kit allows your hot tub to operate normally even when the heat pump is switched off.

Q: Can I install this myself or do I need a professional?
A: The Vian C5 is designed to be DIY-friendly for those with basic plumbing and electrical skills. However, electrical work must be completed by a qualified electrician for safety and warranty purposes. Many customers successfully install the plumbing themselves and hire an electrician for the final electrical connection.

Performance & Efficiency

Q: How long does it take to heat my hot tub from cold?
A: This depends on your hot tub size and weather conditions. A typical 1,500L hot tub takes approximately 7-9 hours to heat from 15°C to 40°C in mild weather (15-20°C ambient). Larger hot tubs or colder weather will take longer. See our detailed heat-up tables above for specific scenarios.

Q: Does the Vian C5 work in winter?
A: Yes! The C5 operates effectively down to -5°C ambient temperature. While efficiency decreases in very cold weather, it still delivers 2-3 times more heat than it consumes in electricity – far better than electric heaters. The automatic defrost function ensures reliable operation even on frosty days.

Q: What’s the difference between this and the C5 Plus (inverter) model?
A: The C5 is an On/Off heat pump (it runs at full power until target temperature is reached, then stops), while the C5 Plus is a Full DC Inverter model that can modulate power from 50-100%. The Plus model is more efficient at maintaining temperature and operates down to -10°C, but costs more. For most UK hot tub owners, the standard C5 offers excellent value and performance.

Q: How does COP work and why does it change?
A: COP (Coefficient of Performance) measures efficiency. A COP of 6.16 means you get 6.16kW of heat for every 1kW of electricity used. COP decreases as ambient temperature drops because there’s less heat available in the air. However, even at 5°C with a COP of 3.53, you’re still getting more than 3 times the heat you’re paying for in electricity.

Installation & Compatibility

Q: What size electrical supply do I need?
A: The Vian C5 requires a 230V, 13A supply (standard UK socket). Maximum current draw is 7.1A, so it runs comfortably on a 13A circuit. You’ll need a dedicated circuit with RCD (residual current device) protection installed by a qualified electrician.

Q: Do I need a bypass valve?
A: Highly recommended! A bypass valve allows water to flow through your existing system when the heat pump is off, meaning your jets, lights, and filtration continue working normally. Without a bypass, you may only have heat pump operation or normal hot tub operation, but not both simultaneously.

Q: Can I use this with my inflatable hot tub?
A: Generally not recommended. Most inflatable hot tubs use internal circulation pumps with integrated heating that can’t be easily bypassed. The C5 is designed for rigid hot tubs with external equipment bays and separate circulation pumps.

Q: How close can I install it to my hot tub?
A: You can install it as close as 1 meter from your hot tub, provided clearance requirements are met (500mm sides/rear, 1m front). Closer installation means less pipe run and slightly better efficiency, but also means you’ll hear it more. Most people install it 1-3 meters away for a good balance.

Maintenance & Reliability

Q: What maintenance does the Vian C5 need?
A: Very minimal! Key maintenance tasks:

• Keep the air intake fins clean (hose off dust/debris every few months)
• Check drain valve periodically for condensate drainage
• Winterize properly if shutting down for extended periods (drain water from heat exchanger)
• Keep area around unit clear of leaves and debris
• Annual inspection by a professional is recommended

Q: What’s the expected lifespan?
A: With proper maintenance, expect 10-15 years of reliable service. The titanium heat exchanger is highly corrosion-resistant, and the rotary compressor is a proven, durable design. Most failures occur due to poor installation (inadequate water flow) or lack of winterization.

Q: What warranty is included?
A: Warranty terms vary by retailer. Standard coverage is typically 2 years parts warranty from the manufacturer. Always check with your supplier for specific warranty terms and conditions. Note that professional installation may be required to validate warranty.

Q: What if something goes wrong?
A: The LED controller displays error codes that help identify issues:

• P1/P3/P5: Sensor faults (temperature sensors)
• P7: Super-cooling protection (water too cold)
• E6: Low pressure fault
• E7: Water flow problem (check pump and filters) Most issues are resolved by checking water flow, cleaning filters, or ensuring adequate clearances.

Cost & Value

Q: Is the Vian C5 worth the investment?
A: Absolutely! While the initial cost is higher than continuing with electric heating, the payback period is typically 12-24 months depending on your usage. After that, you’re saving £600-£1,500 annually. Over the 10+ year lifespan, total savings can exceed £8,000-£15,000.

Q: Are there any hidden running costs?
A: No significant hidden costs. Running costs are primarily electricity (which we’ve detailed above). You may want to budget for:

• Annual professional service: £50-£100
• Potential filter cleaning supplies: £10-£20/year
• Pipe insulation (one-time): £20-£40 That’s it – no consumables, no expensive parts to replace regularly.

Q: Can I use this with solar panels?
A: Yes, excellent combination! The C5’s low power consumption (0.7-0.8kW typically) means it can often run entirely on solar during daylight hours, making your hot tub heating essentially free in sunny weather.

Environmental & Efficiency Benefits 🌍

Reduce Your Carbon Footprint

The Vian Power C5 extracts renewable heat energy from the air, rather than converting electricity directly to heat. This means:

• 60-80% less electricity consumption compared to electric heaters
• Up to 3 tonnes less CO₂ emissions per year (based on typical UK hot tub usage)
• Uses R32 refrigerant with 68% lower global warming potential than older R410A
• Renewable energy heating – the air is heated by the sun, you’re just moving that heat

Future-Proof Your Hot Tub

As electricity prices rise and environmental regulations tighten, air source heat pumps represent the future of pool and spa heating. The Vian C5 ensures your hot tub remains affordable to run for years to come.

Comparison: Electric Heater vs Heat Pump

Why Traditional Electric Heaters Cost So Much More

The Verdict: While electric heaters are cheaper to buy initially, the Vian C5 Heat Pump pays for itself within 1-2 years and saves you £10,000-£18,000 over its lifetime.

What’s the Catch? Common Concerns Addressed 🤔

“It sounds too good to be true…”

We understand the skepticism! The performance figures are based on established thermodynamic principles and real-world testing. Air source heat pumps have been used for decades in home heating and swimming pools – this technology is proven and reliable.

“What about cold weather?”

Yes, performance decreases in cold weather – this is physics, not a design flaw. However, even at 0°C, the Vian C5 still delivers a COP of 2.94, meaning you’re getting nearly 3 times the heat compared to what you’re paying for in electricity. That’s still far better than any electric heater which always has a COP of 1.0.

“Will it actually fit my hot tub?”

If your hot tub has external equipment (pump, heater, controls) and uses 32mm or 38mm plumbing, then yes! The C5 works with: portable hot tubs with equipment packs, built-in spas, swim spas, custom hot tubs, and older Chinese spa packs. The only hot tubs that aren’t suitable are inflatable types with integrated internal systems.

“Is installation really that simple?”

The plumbing is straightforward if you’re comfortable with PVC pipework – it’s similar to installing a pool filter. The electrical connection MUST be done by a qualified electrician. Most customers report 4-6 hours for DIY plumbing plus 1 hour for professional electrical work.

“What if it breaks?”

The Vian C5 uses proven, reliable components (rotary compressor, titanium heat exchanger). Most “failures” are actually installation issues (insufficient water flow, poor electrical connection) or maintenance problems (dirty filters, blocked air intake). Genuine component failures are rare within the warranty period.

Perfect For These Situations ✨

✅ Hot tub owners wanting to dramatically reduce running costs
✅ Anyone with a hot tub using a traditional electric heater
✅ Eco-conscious spa owners wanting to reduce carbon footprint
✅ Properties with solar panels (excellent pairing for daytime heating)
✅ Hot tubs used year-round (maximizes savings)
✅ Commercial spa operators looking to reduce operating expenses
✅ Holiday lets with hot tubs (reduce utility bills, increase profit)
✅ Anyone building a new hot tub installation (plan it in from the start)

Not Suitable For ❌

❌ Inflatable hot tubs with integrated internal heating systems
❌ Extremely high-altitude locations (below -5°C for extended periods)
❌ Situations where there’s no outdoor space for the unit (500mm+ clearances required)
❌ Properties without adequate electrical supply (requires 13A dedicated circuit)
❌ Hot tubs without adequate circulation pumps (requires 2.5m³/h flow rate minimum)
❌ Temporary installations (best for permanent or long-term hot tub setups)

Technical Support & Resources 🛠️

Need Help Choosing?

• Water volume calculator: Measure your hot tub’s dimensions and calculate volume
• ROI calculator: Input your current heating costs to see potential savings
• Compatibility check: Confirm your hot tub model is suitable
• Professional installation: We can recommend qualified installers in your area

Troubleshooting Common Issues

Heat pump not starting:

• Check power connection and RCD hasn’t tripped
• Verify water flow is adequate (2.5m³/h minimum)
• Ensure ambient temperature is within operating range (-5°C to 40°C)
• Check error codes on LED display

Slow heating or poor performance:

• Clean air intake fins (remove dust, leaves, debris)
• Check water flow rate (may need larger circulation pump)
• Verify pipe insulation is intact (heat loss through pipes)
• Confirm hot tub cover is in good condition (heat escapes through poor covers)
• Consider ambient temperature (performance is temperature-dependent)

Error codes appearing:

• E7 (water flow protection): Most common issue – check pump is running, clean filters, verify bypass valve position
• P1/P3/P5 (sensor faults): Usually loose connections – check sensor cables
• E6 (low pressure): May indicate refrigerant issue – contact professional
• P7 (super-cooling): Water temp too low – check ambient conditions

Order with Confidence

What You’re Getting:

✅ Genuine Vian Power C5 Heat Pump (Model HP-VP500)
✅ Comprehensive installation and user manual
✅ 5-meter power cable and control cable included
✅ Manufacturer’s warranty (check with retailer for terms)
✅ Technical support for installation questions
✅ Proven, reliable technology with thousands of installations worldwide

Why Buy From Us:

✅ Authorized Vian Power Dealer – Genuine products, full warranty
✅ Expert Technical Support – We know these products inside out
✅ Fast UK Delivery – Most orders dispatched next working day
✅ Installation Support – Guidance and recommended installer network
✅ Price Match Promise – Competitive pricing on all heat pumps

Technical Specifications Summary 📊

Quick Reference Table

Make the Switch Today 🚀

The Vian Power C5 Heat Pump represents the smartest investment you can make for your hot tub. With payback in 12-24 months and £600-£1,500 annual savings thereafter, it’s not just an upgrade – it’s a long-term cost-reduction strategy.

Join thousands of satisfied UK hot tub owners who’ve already made the switch to efficient, affordable, eco-friendly heating.

Ready to transform your hot tub running costs?

Additional Information ℹ️

Package Contents:

• 1× Vian Power C5 Heat Pump unit
• 1× LED wire controller with 5m cable
• 1× 5-meter power cable (H07RN-F)
• 4× Rubber mounting feet
• 1× Installation and user manual
• 1× Warranty registration card

Shipping Information:

• Approximate package dimensions: 570 × 420 × 620 mm
• Shipping weight: 30 kg
• Delivered on pallet for protection

Important Notes:

• Professional electrical installation required for warranty validity
• Bypass valve kit recommended but sold separately
• Pipe insulation essential for optimal performance
• Annual servicing recommended for longevity

Country of Manufacture: Designed and quality controlled to European standards

⚠️ IMPORTANT SAFETY INFORMATION

• All electrical work must be carried out by a qualified electrician
• Unit must be properly earthed/grounded
• RCD/RCBO protection required
• Do not attempt to service or repair the unit yourself
• Keep children away from the unit
• Ensure adequate ventilation around the unit
• Follow all installation clearance requirements
• Drain the heat exchanger if not using during freezing conditions

DISCLAIMER: Heat-up times, running costs, and performance figures are estimates based on standard conditions and may vary based on numerous factors including: hot tub insulation quality, cover condition, ambient temperature, humidity, wind exposure, starting water temperature, and system configuration. Real-world results may differ. COP ratings are measured under laboratory conditions. Warranty terms vary by retailer – always confirm details with your supplier before purchase.

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	2 inch Flapper Check Valve 1.25-2lbs. Spring 2-inch Flapper Check Valve: The Heart of Your Hot Tub’s Circulation As a dedicated hot tub enthusiast and spare parts supplier, I’m excited to introduce you to a crucial component that keeps your spa running smoothly: the 2-inch Flapper Check Valve with a 1.25-2lbs Spring. This small but mighty piece of equipment plays a vital [...]	£12.17 Max: 99 Min: 1 Step: 1 Add to cart
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