2 The Links

What the assessor found

Each part of the home, with the certificate's own energy efficiency rating.

• Walls

  Cavity wall, as built, no insulation (assumed)

  Poor

• Roof

  Pitched, limited insulation

  Poor

• Floor

  Solid, no insulation (assumed)

  Not rated on the certificate

• Windows

  Fully double glazed

  Average

• Heating

  Boiler and radiators, mains gas

  Good

• Heating controls

  Programmer, room thermostat and TRVs

  Good

• Hot water

  From main system

  Good

• Lighting

  No low energy lighting

  Very poor

• Second heating

  Room heaters, mains gas

  Not rated on the certificate

The assessor's estimates at the energy prices in use when the certificate was made (2015), for a typical household. Today's bills will differ.

Improvements the certificate recommends

In the certificate's order. Each rating assumes the steps before it are done.

1. 1

   Cavity wall insulation

   Typical cost £500–£1,500 · saves about £223 a year

   Rating after62D
2. 2

   Floor insulation (solid floor)

   Typical cost £4,000–£6,000 · saves about £52 a year

   Rating after64D
3. 3

   Low energy lighting for all fixed outlets

   Typical cost £50 · saves about £39 a year

   Rating after66D
4. 4

   Replace boiler with new condensing boiler

   Typical cost £2,200–£3,000 · saves about £80 a year

   Rating after69C
5. 5

   Solar water heating

   Typical cost £4,000–£6,000 · saves about £36 a year

   Rating after70C
6. 6

   Solar photovoltaic panels, 2.5 kWp

   Typical cost £5,000–£8,000 · saves about £287 a year

   Rating after82B

Costs and savings are the certificate's own, as estimated when it was made.