Home Heat Pump Guide

Samsung Heat Pump UK Review

Samsung may not be the first name that springs to mind when you think about heating your home, but the South Korean electronics giant has been quietly building a serious presence in the UK heat pump market. Their EHS (Eco Heating System) range of air-to-water heat pumps has gained a growing number of UK installations, driven by competitive pricing, impressively quiet operation, and efficiency figures that match or exceed more established heating brands.

This review covers the Samsung EHS range in detail, with a focus on real-world UK performance, pricing, noise levels, and an honest assessment of where Samsung excels and where it falls short compared to more established heat pump brands.

The Samsung EHS Range

Samsung's UK domestic heat pump offering centres on the EHS Mono (monobloc) range. As with other monobloc designs, all refrigerant is contained within the outdoor unit — only insulated water pipes and electrical cables connect to the indoor system.

EHS Mono Key Specifications

  • Capacity range: 5kW, 8kW, 12kW, and 16kW models
  • Refrigerant: R32
  • SCOP (at 35°C): Up to 4.60
  • SCOP (at 55°C): Up to 3.25
  • Max flow temperature: 65°C
  • Noise at 1m: 35 to 44dB (varies by model and output)
  • Operating range: -25°C to +35°C outdoor temperature
  • Dimensions (8kW model): 940 x 998 x 330mm (WxHxD)
  • Weight (8kW model): Approximately 72kg

The EHS Mono is available in a Gen6 version, which is the current model as of 2026. Samsung has progressively refined the range, with each generation improving efficiency, noise, and connectivity.

EHS ClimateHub

Samsung also offers the ClimateHub — an integrated indoor unit that combines a hot water cylinder (200 or 260 litres), hydraulic module, and controls in a single floor-standing unit. This pairs with the EHS Mono outdoor unit to create a complete heating and hot water system. The ClimateHub simplifies installation and reduces the number of separate components in the plant room.

Quiet Operation: Samsung's Standout Feature

The most immediately impressive aspect of the Samsung EHS Mono is how quiet it is. The 5kW model achieves just 35dB at one metre — which is quieter than a whisper and significantly below the noise floor of a typical suburban garden. Even the larger 16kW model stays under 44dB.

To put this in context:

  • Samsung EHS Mono 5kW: 35dB — quieter than a library
  • Daikin Altherma 3 (smallest): 37dB
  • Vaillant Arotherm Plus (smallest): 38dB
  • Mitsubishi Ecodan (smallest): 42dB

For properties where noise is a primary concern — terrace houses, small gardens, units near boundary walls or bedroom windows — the Samsung's quiet operation is a genuine differentiator. In many installations, the unit is essentially inaudible from just a few metres away.

The low noise is achieved through a combination of an efficient inverter-driven compressor, optimised fan blade design, and effective sound-dampening materials within the casing. The inverter technology also means the unit rarely runs at full capacity — at part load (which is most of the time), noise drops even further.

Efficiency and Real-World COP

Samsung's SCOP figures are impressive on paper — up to 4.60 at 35°C flow temperature — placing it alongside Vaillant and ahead of Mitsubishi in laboratory testing.

Real-world performance in UK installations shows:

  • 3.2 to 3.8 seasonal COP when running at 35 to 40°C flow temperature (well-insulated homes)
  • 2.6 to 3.2 seasonal COP when running at 45 to 55°C (moderately insulated homes)
  • 2.2 to 2.7 seasonal COP when running at 55 to 65°C (older homes, standard radiators)

These figures are competitive with all major brands. The key factor, as always, is flow temperature. A Samsung EHS running at 35°C in a well-insulated home with underfloor heating will deliver a COP of 3.5 or above. The same unit running at 55°C in a poorly insulated Victorian terrace will manage around 2.8.

Cold Weather Performance

The EHS Mono is rated to operate in outdoor temperatures as low as -25°C, which is more than sufficient for UK conditions (where temperatures very rarely drop below -10°C). Samsung's inverter compressor maintains heating output effectively in cold weather, with COP remaining viable even at -7°C outdoor temperature — the standard test condition for UK heat pump performance.

Smart Home Integration

Samsung leverages its consumer electronics heritage to offer some of the best smart home integration in the heat pump market:

Samsung SmartThings

The EHS range integrates with Samsung's SmartThings ecosystem, which connects to a wide range of smart home devices. Through the SmartThings app, homeowners can:

  • Control heating temperatures and schedules remotely
  • Monitor energy consumption in real time
  • Receive error notifications and system alerts
  • Integrate with other Samsung smart devices (air purifiers, smart plugs, etc.)
  • Use voice control through compatible assistants

For homeowners already in the Samsung smart home ecosystem, the EHS integrates seamlessly. Even for those new to Samsung, the SmartThings app is well-designed and intuitive.

WiFi Controller

Samsung provides a WiFi module (MIM-H04EN or similar) that enables cloud connectivity and remote monitoring. This allows both the homeowner and installer to monitor the system remotely, diagnose issues, and optimise settings without a site visit.

Installation and Indoor Components

The EHS Mono's monobloc design makes installation straightforward. Key indoor components include:

  • ClimateHub: The integrated indoor unit with built-in cylinder (200 or 260 litres), hydraulic module, and controls. This is the most common indoor configuration and simplifies the installation to a single indoor unit.
  • Separate cylinder option: The EHS can also be paired with a separate buffer tank and third-party unvented cylinder for installations that need larger hot water capacity or different configurations.
  • Wired controller: A wall-mounted controller for local temperature and schedule management.

Installation typically takes one to two days for a straightforward gas boiler replacement. The outdoor unit is relatively light (approximately 72kg for the 8kW model), making handling easier than some heavier competitors.

The Installer Network Question

This is the area where Samsung lags behind the established heating brands. While Mitsubishi has thousands of trained Ecodan installers across the UK, and Vaillant benefits from its boiler installer heritage, Samsung's dedicated heat pump installer network is smaller.

Samsung has been investing heavily in installer training through their Samsung Climate Solutions programme, and the number of trained installers is growing steadily. However, depending on your location, you may find fewer Samsung-approved installers to choose from compared to Daikin, Mitsubishi, or Vaillant.

This matters because:

  • Fewer installer options means less competitive pricing for installation
  • Finding a replacement installer for servicing or warranty work could be harder in some areas
  • Less collective installer experience with the product compared to well-established brands

Before committing to a Samsung installation, confirm that there are at least two or three Samsung-trained installers in your area so you are not dependent on a single company for future servicing and support.

Warranty

Samsung offers a 5-year standard manufacturer warranty on the EHS range. This covers all major components including the compressor, heat exchangers, and electronic controls.

The warranty requires professional installation by a qualified installer and regular annual servicing. Samsung does not currently offer an extended warranty programme comparable to Daikin's 10-year option, which is a slight disadvantage for homeowners seeking maximum long-term protection.

Pricing

Samsung EHS unit prices (before installation) typically range from:

  • 5kW model: £3,000 to £3,800
  • 8kW model: £3,500 to £4,200
  • 12kW model: £4,200 to £5,000
  • 16kW model: £5,000 to £5,500

Total installed costs including the ClimateHub indoor unit, controls, pipework, and commissioning typically range from £7,000 to £12,000. After the Boiler Upgrade Scheme grant of up to £7,500, out-of-pocket costs can be as low as £500 to £5,000 — making Samsung one of the most affordable routes to heat pump ownership.

The pricing is typically £1,000 to £2,500 less than a comparable Vaillant installation and £500 to £1,500 less than Daikin. For budget-conscious homeowners, this price difference is significant — particularly after the BUS grant reduces the total further.

Samsung vs Competitors

Samsung vs Daikin Altherma 3

Samsung is typically cheaper and quieter. Daikin has a longer heat pump track record, a larger installer network, and offers up to 10-year warranty. Both achieve similar COP figures. Samsung is the value choice; Daikin is the established choice.

Samsung vs Mitsubishi Ecodan

Samsung beats the Ecodan on noise, SCOP, and price. Mitsubishi has an unmatched track record, the largest UK installer network, and the best spare parts availability. For risk-averse homeowners, Mitsubishi is safer. For value-seekers, Samsung is compelling.

Samsung vs Vaillant Arotherm Plus

Vaillant offers R290 refrigerant and higher flow temperatures (75°C vs 65°C). Samsung is significantly cheaper and quieter. Vaillant has the stronger UK installer network. Samsung is the budget pick; Vaillant is the premium environmental choice.

Pros and Cons Summary

Pros

  • Quietest heat pump on the market — as low as 35dB at one metre
  • Competitive pricing — typically the best value major brand
  • Excellent SCOP figures — up to 4.60
  • 65°C maximum flow temperature — works with most existing radiator systems
  • Strong smart home integration through SmartThings
  • Lightweight outdoor unit — easier to handle during installation
  • ClimateHub simplifies indoor installation
  • Good cold weather performance rated to -25°C

Cons

  • Smaller UK installer network than Mitsubishi, Daikin, or Vaillant
  • Shorter heat pump track record in the UK market
  • Uses R32 refrigerant (not R290)
  • 5-year warranty only — no extended option matching Daikin's 10 years
  • Less heat pump spare parts availability than Mitsubishi (though improving)
  • Samsung brand associated more with electronics than heating — some homeowners may be cautious

Who Is Samsung Best Suited For?

  • Budget-conscious homeowners who want excellent performance without premium pricing
  • Properties where noise is a primary concern — terraces, small gardens, close neighbours
  • Tech-savvy homeowners who want strong smart home integration
  • Well-insulated to moderately insulated homes where 35 to 55°C flow temperatures are achievable
  • Homeowners comfortable with a newer market entrant rather than the most established brand

For homeowners who prioritise proven long-term reliability above all else, the Mitsubishi Ecodan remains the safest choice. For those wanting the best environmental credentials, the Vaillant Arotherm Plus with R290 leads the field. Samsung's strength is delivering comparable performance at a lower price with exceptionally quiet operation.

Frequently Asked Questions

Is Samsung a good heat pump brand?

Yes. The EHS Mono delivers excellent COP figures, industry-leading quiet operation, and competitive pricing. While Samsung has a shorter UK heat pump track record than Mitsubishi or Daikin, the product itself is well-engineered and has received positive feedback from installers and homeowners.

How much does a Samsung heat pump cost installed?

Total installed costs typically range from £7,000 to £12,000 before the BUS grant. After the grant (up to £7,500), many homeowners pay £500 to £5,000 out of pocket — making Samsung one of the most affordable heat pump options.

How quiet is the Samsung heat pump?

The 5kW model achieves 35dB at one metre — the quietest domestic heat pump widely available in the UK. Even the largest 16kW model stays under 44dB. At partial load, noise is even lower.

What COP does the Samsung EHS achieve?

Manufacturer-rated SCOP is up to 4.60 at 35°C. Real-world seasonal COP in UK homes is typically 3.2 to 3.8 at low flow temperatures and 2.6 to 3.2 at moderate flow temperatures.

Can I get a Samsung heat pump installed in my area?

Samsung's UK installer network is smaller than Mitsubishi, Daikin, or Vaillant, but it is growing. Check Samsung's Climate Solutions website or ask local MCS installers whether they are Samsung-trained. In urban areas, finding a Samsung installer is usually straightforward; in rural areas, options may be more limited.

Does Samsung offer an extended warranty?

Currently, Samsung offers a 5-year standard warranty with no publicly available extended warranty programme. This compares unfavourably with Daikin (up to 10 years) and Vaillant/Mitsubishi (7 years). Check with your installer for the latest warranty options, as Samsung may update their warranty offering.