BER Improvement Report - Suggested Improvements

The BER assessment provides an estimate of the Annual Energy Consumption with a Summary of Heat Loss for the dwelling.

Based on this the improvement report will suggest improvements with the impact of each on the energy performance of the dwelling:

Current energy performance of this building

kWh/m2

278.36

CO2/m2

53.04

BER

D2

 

 

Energy performance after improvement

Building element

Recommendation

kWh/m2

CO2/m2

BER

Cost

Impact

Efficiency of main heating system

Upgrade to condensing boiler with efficiency of at least 90%

235.11

45.1

D1

High

High

Boiler

Install timer/thermostat

223.11

42.8

C3

Med

Low

Walls, Main Wall, Cavity wall

Install external/internal insulation to 2008 building regulation standard where possible

203.05

39.1

C3

High

High

Roof, Main dwelling roof, Pitched roof

Increase insulation to 2008 building regulation standard where possible

193.97

37.4

C2

High

Med

Heating system control category

Upgrade controls to include Room stat, programmer and TRVs

184.91

35.7

C2

High

Med

Hot Water Control

Upgrade boiler system to have separate time control of domestic hot water

183.80

35.5

C2

Low

Low

Cylinder timer

Install cylinder timer/thermostat

177.43

34.4

C2

Med

Low

 

In the sample above, upgrading the boiler to one with efficiency greater than 90% will improve the energy performance from 278.36 kWh/m2 to 235.11 kWh/m2, reducing CO2 emissions and bringing the BER from D2 to D1.

Similarly, if a timer or thermostat is installed to control the heating system following upgrading of the boiler, the energy consumption reduces from 235.11 kWh/m2 to 223.11 kWh/m2, reducing CO2 emissions further and bringing the BER from D1 to C3.

Check out our newly released BER Estimator.