Mitsubishi Ecodan vs Samsung EHS Mono HT Quiet (2026 Comparison)
Comparing Britain's most installed domestic heat pump (made in Scotland) against South Korea's value-packed high-temperature disruptor.
Mitsubishi Ecodan (Best for Quiet / Proven UK Heritage) / Samsung (Best Value High Temp)
If your primary concern is whisper-quiet operation close to a boundary fence and proven British manufacturing reliability, choose Mitsubishi Ecodan. If you are on a stricter budget and need high 70°C flow temperatures for older radiators, choose Samsung EHS Mono HT.
Compare Your Current Energy Bill vs Heat Pump
Upload your recent gas or oil bill (PDF/Photo) or adjust the slider below to calculate exact fuel savings and smart tariff matching.
Side-by-Side Key Differentiators
| Comparison Area | Mitsubishi Electric Ecodan | Samsung EHS Mono HT |
|---|---|---|
| Manufacturing & UK Footprint | Manufactured in Livingston, Scotland. Hundreds of certified UK engineers. | Manufactured in South Korea. Rapidly growing UK installer base. |
| Flow Temperature & Radiators | 60°C maximum pure heat pump temp (may require radiator sizing in older homes). | 70°C maximum flow temperature (easier direct replacement for older radiators). |
| Sound Output | 26 dBA at 3m (Ultra Quiet AA chassis is one of the quietest in the UK). | 29 dBA at 3m (4-step low noise mode, Quiet Mark certified). |
| Pricing & Value | Mid-tier (£9,200 – £12,800 before grant). | Budget-friendly (£8,800 – £12,200 before grant — often £800-£1,200 cheaper). |
Compare Net Installed Costs for Mitsubishi Electric Ecodan vs Samsung EHS Mono HT After £7,500 Grant
Both systems qualify for the non-repayable £7,500 government BUS voucher and 0% statutory VAT in England & Wales. Compare vetted MCS installers and claim your upfront grant deduction.
Detailed Technical Analysis
1. Refrigerant Technology & Future Regulations
The UK and European heating markets are undergoing a fundamental shift away from synthetic F-gases (like R410A and R32) towards natural refrigerants such as R290 (propane). Natural R290 has an ultra-low Global Warming Potential (GWP 3) and thermodynamic properties that allow water flow temperatures up to 75°C without straining the compressor.
2. Radiator Matching & Flow Temperatures
If you are replacing a standard UK gas or oil boiler, water flow temperature determines whether you can keep your existing radiators. Systems capable of 65°C–75°C deliver heat identically to traditional boilers, whereas 50°C–55°C systems require larger radiator surface areas (Type 22 double convector panels) to maximize seasonal SCOP.
3. Noise & Acoustic Permitted Development
Both manufacturers have invested heavily in sound attenuation to comply with England's MCS 020 Permitted Development noise threshold (< 42 dBA at the nearest neighbour window). Proper acoustic siting is vital for terraced and semi-detached properties.
Claim £7,500 BUS Grant & Compare Local Pricing
Itemized installation estimates for Mitsubishi Electric Ecodan & Samsung EHS Mono HT with £7,500 grant deduction and smart tariff optimization.