LG Therma V — best warranty
A gentle entry price, a roomy internet-connected controller and an upgradeable 10-year compressor warranty.
Get 3 free LG quotes
MCS-certified installers who fit and quote the Therma V in your area — with your £7,500 grant applied to every quote.
You could be £7,500 better off. The grant is paid straight to your MCS installer, so it comes off your LG quote. Check eligibility →
Key specifications at a glance
| Efficiency (SCOP) | 4.4 |
| Noise level | 40–50 dB |
| Refrigerant | R32 |
| Max flow temperature | 65°C |
| Cold-weather capability | Reliable operation in UK winter conditions |
| Warranty | 5-10 years (upgradeable compressor cover) |
| Price after £7,500 grant | £4,000 – £9,000 |
SCOP is the seasonal efficiency figure from MCS-certified spec data. Prices are typical installed guide ranges for a 3–4 bed home after the grant.
Buy the LG Therma V
A heat pump is almost always installed by a certified fitter rather than bought off a shelf, but you can price the unit and parts yourself to sanity-check an installer’s quote.
Product links are affiliate links — we may earn a small commission at no extra cost to you. Prices and stock are the retailer's.
Our verdict on the LG Therma V
LG's Therma V is the warranty king of the big-five heat pumps. Standard cover runs to 5 years, but LG lets you extend the compressor warranty to 10 years when the unit is registered and serviced through an approved installer — the longest protection you'll find at this price point. That long-term peace of mind is a genuine differentiator.
Under the hood it's a capable R32 unit with a SCOP of 4.4, a roomy touchscreen controller, quiet operation and a 65°C flow temperature. It's a strong all-rounder that becomes the standout choice for homeowners planning to stay in their property for a decade or more.
What sets it apart
- Upgradeable 10-year compressor warranty
- Roomy touchscreen internet controller
- SCOP 4.4, R32 refrigerant
- 65°C flow temp suits standard radiators
- Quiet operation, competitive price
Who it’s best for
Want the Therma V installed?
Get free quotes from local MCS-certified heat pump installers — every quote has the £7,500 grant applied.
Get free quotes →More on heat pumps
LG Therma V FAQs
- MCS Certified — https://mcscertified.com
- Energy Saving Trust — https://energysavingtrust.org.uk
- Ofgem BUS Scheme — https://www.ofgem.gov.uk/environmental-and-social-schemes/boiler-upgrade-scheme-bus
SCOP reflects the MCS-certified manufacturer datasheet. Price is a typical installed range after the Boiler Upgrade Scheme grant and should be confirmed by a site-specific quote. Manufacturer: https://lg.co.uk