Heat pumps · Compare

August Brötje BLW Eco 4.2 + Kit65 vs Remeha Confida MB 400-4

SCOP (35 °C): August Brötje BLW Eco 4.2 + Kit65 4, Remeha Confida MB 400-4 5.34. The Remeha Confida MB 400-4 is better on 4 of 13 comparable points.

Who wins where

  • August Brötje BLW Eco 4.2 + Kit65
  • Remeha Confida MB 400-4
PerformanceEfficiencyNoiseRefrigerantConnectivity & smart
Performance: August Brötje BLW Eco 4.2 + Kit65 7, Remeha Confida MB 400-4 7; Efficiency: August Brötje BLW Eco 4.2 + Kit65 64, Remeha Confida MB 400-4 89; Noise: August Brötje BLW Eco 4.2 + Kit65 88, Remeha Confida MB 400-4 88; Refrigerant: August Brötje BLW Eco 4.2 + Kit65 95, Remeha Confida MB 400-4 95; Connectivity & smart: August Brötje BLW Eco 4.2 + Kit65 50, Remeha Confida MB 400-4 50

Biggest differences

FactBLW Eco 4.2 + Kit65Confida MB 400-4
SCOP (35 °C)45.34
COP A2/W354.15.29
COP A-7/W353.23.4
All specifications ↓

Score per area = position (0–100) relative to all 1000 models in this category; higher is better.

Technical specifications August BrötjeBLW Eco 4.2 + Kit65 RemehaConfida MB 400-4
Grants & market
Boiler Upgrade Scheme £7,500 – £9,000£7,500 – £9,000
Performance
Rated output 35 °C 5.3 kW 1 5.3 kW 1
Rated output 55 °C 4.9 kW 1 4.9 kW 1
Efficiency
SCOP (35 °C) 4 1 5.34 ✓ 1
SCOP (55 °C) 4 ✓ 1 3.99 1
Seasonal efficiency ηs 35 °C 210 % 1 210.4 % ✓ 1
Seasonal efficiency ηs 55 °C 157 % ✓ 1 156.7 % 1
COP A7/W35 5.2 ✓ 1 5.17 1
COP A2/W35 4.1 1 5.29 ✓ 1
COP A-7/W35 3.2 1 3.4 ✓ 1
Noise
Outdoor unit sound power 48 dB(A) 1 48 dB(A) 1
Indoor unit sound power 30 dB(A) 1 30 dB(A) 1
Refrigerant
Refrigerant R290 1 R290 1
Refrigerant charge 0.7 kg 1 0.7 kg 1
Electrical
Max. power input 2.7 kW 1 2.7 kW 1
Connectivity & smart
SG Ready Yes 1 Yes 1

Sources

  1. List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 27 Sept 2026