Efficiency Information; Annual Efficiency; Heat To Water Efficiency; Installation Applications - REMEHA W40 Installation And Maintenance Instructions Manual

4. EFFICIENCY INFORMATION

4.1 Annual efficiency

a. 103.3% (NCV), 93.0% (GCV) at an average water
temperature of 45˚C (55/35˚C).

5. INSTALLATION APPLICATIONS

5.1 General

The boiler may be used with a fully pumped sealed or
open vented central heating system and pumped heat-
ing combined with pumped indirect domestic hot water
supply systems.
The remeha W40/60-m ECO is not suitable for systems
which include any gravity circulation, bathroom installa-
tions or connection to unlined brick chimneys.
Fig. 03 Header dimensions remeha W40-m ECO
Fig. 04 Header dimensions remeha W60-m ECO

4.2 Heat to water efficiency

a. Up to 99.0% (NCV), 89.1% (GCV) at an average
water temperature of 76.5˚C.
b. Up to 110.4% (NCV), 99.4% (GCV) at an average
water temperature of 45˚C.

5.1.1 Installation of single boilers

The low noise level emission of 48 dBA measured at 1
m from the boiler makes the remeha W40/60-m ECO
ideal for installation as a single boiler in large domestic
dwellings and smaller commercial premises.
The single boiler should be supplied with a header
(available from Broag).
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