UK home cooling

Home / Argo ECOLIGHT 6.1 kW (ECOLIGHT24000UE)

Argo ECOLIGHT 6.1 kW (ECOLIGHT24000UE) vs Bosch 7733701934 6.1 kW (7733701941(2X)): which is quieter and cheaper to run?

Bosch 7733701934 6.1 kW (7733701941(2X)) is better on every figure we have: ≈1.0 dB quieter outside, passes 37 dB from 1.3 m closer, SEER 1.0 higher and ≈£14.83 cheaper to run. Argo ECOLIGHT 6.1 kW (ECOLIGHT24000UE) only makes sense if it is cheaper where you buy it.

manufacturer-declared, EPREL

37 dB(A) 1 m2 m3 m4 m5 m8 m12 m
Argo ECOLIGHT 6.1 kW (ECOLIGHT24000UE) and Bosch 7733701934 6.1 kW (7733701941(2X)), estimated dB(A).

Where the registered figures differ

The marker that opened this page: lwa, seer, pass_distance. Both columns use the same tariff and the same noise setting.

Argo ECOLIGHT 6.1 kW (ECOLIGHT24000UE) against Bosch 7733701934 6.1 kW (7733701941(2X)). Difference is left minus right.
FieldArgo ECOLIGHT 6.1 kW (ECOLIGHT24000UE)Bosch 7733701934 6.1 kW (7733701941(2X))DifferenceSource
Outdoor sound power67.0 dB(A)66.0 dB(A)+1.0 dBmanufacturer-declared, EPREL
SEER6.17.1−1.0 SEERmanufacturer-declared, EPREL
SCOP4.04.0≈0 SCOPmanufacturer-declared, EPREL
RefrigerantR32R32samemanufacturer-declared, EPREL
GWP675675≈0 GWPmanufacturer-declared, EPREL
£ per summer, 400 h£105.28£90.45+£14.83calculated: capacity ÷ SEER × 400 h × price-cap rate
Distance to pass 37 dB≈12.5 m≈11.2 m+1.3 mcalculated, MCS 020a, Q=2, no barrier
Cooling capacity6.1 kW6.1 kW≈0 kWmanufacturer-declared, EPREL

Sound at a neighbour's window

Each distance is one outdoor unit, Q=2, no barrier, scored against England and Wales at 37 dB(A).

Estimated sound pressure. Scotland's legal point is a different sum and is not this column.
DistanceArgo ECOLIGHT 6.1 kW (ECOLIGHT24000UE) dB(A)Argo ECOLIGHT 6.1 kW (ECOLIGHT24000UE) vs 37 dBBosch 7733701934 6.1 kW (7733701941(2X)) dB(A)Bosch 7733701934 6.1 kW (7733701941(2X)) vs 37 dB
1 m59.0over58.0over
2 m53.0over52.0over
3 m49.5over48.5over
4 m47.0over46.0over
5 m45.0over44.0over
8 m41.0over40.0over
12 m37.4over36.4pass

EPREL manufacturer-declared registrations · snapshot 25 Sep 2026 · n=2 · pair source tier is the weaker of the two cards; noise via contract_engine MCS 020a Q=2, no barrier · updated 25 Sep 2026 · version 1.0.0 · CSV of Argo ECOLIGHT 6.1 kW (ECOLIGHT24000UE) · CSV of Bosch 7733701934 6.1 kW (7733701941(2X))

How this page was calculated

If the calculated sound pressure level at all assessment positions is equal to or lower than 37.0 dB(A) then the heat pump will comply with the Permitted Development noise limit Estimated by MCS 020a Issue 1.1 for one unit, Q=2, no barrier, via contract_engine. £ per summer is capacity ÷ SEER × hours × 26.32p/kWh (2026-10-01 to 2026-12-31). The pair row lives in the compare index CSV.

Open the two cards

Better than a spec-sheet glance: the gap is scored at the same distances against the 37 dB line, and £ per summer uses one tariff.

Report an error on this page