
If you’re a UK homeowner or landlord in London, Brighton, Oxford, Southampton, Bristol, or Cardiff considering a versatile renewable heating system with strong performance in various conditions, this LG heat pump review offers comprehensive details on efficiency, costs, and features to assist your informed choice.
In this LG heat pump review, we’ll provide a quick overview of essential specifications to help you grasp the basics before exploring further. Here’s a detailed table with features, efficiency, costs, and more based on 2026 models like the Therma V series.
| Feature | Details |
|---|---|
| Models Available | Therma V R32 Monobloc (5-16kW), Therma V Hydrosplit (5-16kW) air-to-water heat pumps |
| Efficiency (SCOP at 35°C) | Up to 5.0 (500% efficiency) |
| Energy Rating | A+++ |
| Noise Level | 50-60 dB (standard operation) |
| Purchase Cost (unit only) | £2,500-£5,000 |
| Installation Cost | £7,000-£12,000 (full system, before £7,500 BUS grant) |
| Running Costs | £700-£1,100 annually; savings up to £400 vs. gas boiler |
| Maintenance Requirements | Annual servicing (£150-£250); LG ThinQ app for monitoring |
| Best For Property Types | Small to medium homes (80-250 sq m), well-insulated properties in mild to cold UK climates |
| Trustpilot Rating | 4.4/5 (over 5,000 reviews for LG UK) |
| Which? Ratings | Positive for efficiency and value; recommended in 2025 tests |
| Warranty | 5-7 years standard, extendable to 10 years |
For expert heat pump installation in Southern England, Greater London, South West England, and South Wales—including London, Brighton, Oxford, Southampton, Bristol, and Cardiff—EE Renewables offers tailored services. Get in touch today for a free quote.
Yes, you should consider an LG heat pump if you’re seeking a reliable, tech-savvy renewable heating solution with good efficiency for UK homes.
LG Electronics, a South Korean company founded in 1958 with a strong UK presence since the 1990s, produces the Therma V series of air source heat pumps, known for innovative features like smart controls and high-temperature output.
Much of LG’s strong real-world performance becomes clearer when you understand how air source heat pumps work, as LG’s inverter-driven compressors are designed to modulate output efficiently rather than switching on and off aggressively.
The efficiency of LG heat pumps is impressive, with SCOP ratings up to 5.0 at 35°C flow temperature, meaning they deliver 5 units of heat per unit of electricity and achieve A+++ energy labels.
This outperforms traditional gas boilers (90% efficient), potentially reducing carbon emissions by 70% in well-insulated UK homes while providing reliable heating and hot water. Inverter technology adjusts output for COPs around 4.0-4.5 in cold weather down to -25°C, ideal for Southern England winters.
For landlords in Bristol managing rentals, this efficiency supports EPC upgrades and bill savings of 30-40% when paired with time-of-use tariffs, making it a smart choice for net-zero goals.
The costs of LG heat pumps make them a competitive mid-range option, with units starting at £2,500 and full systems eligible for substantial grants.
| Component | Est. Cost (before BUS grant) |
|---|---|
| 5kW Unit + Install | £7,000-£9,000 |
| 9kW Unit + Install | £8,000-£10,000 |
| 16kW Unit + Install | £10,000-£12,000 |
| Annual Maintenance | £150-£250 |
| Running (per year) | £700-£1,100 |
For a broader view on pricing benchmarks, grants, and long-term budgeting, our guide to air source heat pump costs provides helpful context beyond brand-specific figures.
The LG heat pump model range centres on the Therma V series, offering monobloc and hydrosplit air-to-water systems designed for high efficiency and easy integration in UK homes.
| Model | Power Output | Suitable Home Size | SCOP (35°C) | Max Flow Temp | Price (unit only) |
|---|---|---|---|---|---|
| Therma V R32 Monobloc | 5-16kW | 80-250 sq m | Up to 5.0 | 65°C | £2,500-£5,000 |
| Therma V Hydrosplit | 5-16kW | 80-250 sq m | 4.8-5.0 | 65°C | £3,000-£5,500 |
Installation costs for LG heat pumps typically range from £7,000 to £12,000 for a full system, including the unit, labour, and any necessary upgrades like new cylinders, before the £7,500 BUS grant reduces net expenses.
For a 9kW Therma V in a 150 sq m home in Southampton, expect £8,500-£10,000, netting £1,000-£2,500 post-grant. MCS-certified installers handle site surveys, completing most jobs in 2-3 days with minimal disruption.
Pro tip: Installation pricing and performance depend heavily on system output, which is why understanding what size air source heat pump you need is essential when choosing a model for your property.
Running costs of LG heat pumps average £700-£1,100 per year for a typical household, depending on electricity tariffs and insulation levels, with potential savings of £400 annually versus gas boilers.
With high SCOP, they use electricity efficiently—around 2,500-3,500 kWh at 15p/kWh for a 200 sq m property in Cardiff, equating to £375-£525 for heating and hot water. Pairing with solar PV further lowers costs.
Maintenance and servicing requirements for LG heat pumps are straightforward, recommending annual checks at £150-£250 to inspect refrigerants, filters, and components for optimal performance and longevity up to 20 years. The LG ThinQ app provides monitoring and alerts for issues. Simpler than gas boilers, they’re user-friendly for homeowners in Oxford.
The warranty on LG heat pumps is 5-7 years standard, extendable to 10 years with approved installers, covering parts and labour for reliable protection.
Property types best suited for LG heat pumps include small to medium UK homes (80-250 sq m), such as well-insulated semis or bungalows in mild to cold climates like Greater London, where they perform efficiently with minimal upgrades.
Pro tip: Before choosing LG, it’s important to assess whether your home is suitable for a heat pump, as insulation levels and heat emitter compatibility directly affect performance and overall value.
Customer ratings for LG heat pumps are generally positive, emphasising efficiency and value.
Trustpilot ratings for LG UK average 4.4/5 from thousands of reviews, with heat pump users praising performance and app features, though some note service delays.
Which? ratings for LG heat pumps highlight strong efficiency and affordability, recommending them in comparative tests without a specific 2026 score but positive overall.
LG compares favourably in efficiency and tech integration, making it a versatile mid-range choice.
LG offers higher SCOP and better cold performance than Cosy 6, suiting varied homes, while Cosy 6 is more tariff-focused for basic savings.
LG provides affordable efficiency over Aira’s long warranties, better for value-conscious users.
LG matches Vaillant’s quietness with competitive pricing, though Vaillant excels in hybrids.
LG edges Panasonic in app integration, while Panasonic has compact builds.
LG is cheaper than Nibe for similar cold resilience.
LG offers similar high temps to Samsung but at potentially lower costs.
LG competes with Mitsubishi’s durability through tech features.
LG surpasses Midea in reliability for slight premium.
LG provides value over Viessmann’s integration for simpler installs.
LG matches Worcester Bosch’s efficiency with modern apps.
LG offers comparable efficiency to Hitachi with better smart controls.
LG competes with Daikin’s variety through affordability and high temps.
An LG heat pump could be right for you if your property benefits from efficient, tech-integrated renewable heating.
Choose LG if:
Don’t choose LG if:
Ready to get your heat pump installed for efficient renewable heating? EE Renewables provides expert air source heat pump installation across Southern England, Greater London, South West England, and South Wales—including areas like London, Brighton, Oxford, Southampton, Bristol, and Cardiff. Get in touch today for a free quote.
Yes, LG ThinQ connects to devices like Nest for automated heating schedules.
LG includes stabilisers to manage grid variations, ensuring stable operation in rural South West England.
Yes, anti-corrosion features protect against damp in coastal Brighton, maintaining efficiency.
LG supports gas or electric hybrids for peaks, switching seamlessly via controls.
Beyond BUS, LG may eligible for local schemes in Cardiff, targeting eco-upgrades.