51 Devonshire Road

What the assessor found

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

• Walls

  Solid brick, as built, no insulation (assumed)

  Very poor

• Roof

  Pitched, no insulation (assumed)

  Very poor

• Floor

  Suspended, no insulation (assumed)

  Not rated on the certificate

• Heating

  Boiler and radiators, mains gas

  Good

• Heating controls

  Room thermostat only

  Poor

• Hot water

  Electric immersion, standard tariff

  Very poor

• Lighting

  Low energy lighting in 78% of fixed outlets

  Very good

The assessor's estimates at the energy prices in use when the certificate was made (2012), 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

   50 mm internal or external wall insulation

   Typical cost £4,000–£14,000 · saves about £128 a year

   Rating after53E
2. 2

   Floor insulation

   Typical cost £800–£1,200 · saves about £36 a year

   Rating after54E
3. 3

   Add additional 80 mm jacket to hot water cylinder

   Typical cost £15–£30 · saves about £24 a year

   Rating after55D
4. 4

   Upgrade heating controls

   Typical cost £350–£450 · saves about £38 a year

   Rating after57D
5. 5

   Replace boiler with new condensing boiler

   Typical cost £2,200–£3,000 · saves about £270 a year

   Rating after67D
6. 6

   Solar water heating

   Typical cost £4,000–£6,000 · saves about £33 a year

   Rating after69C
7. 7

   Solar photovoltaic panels, 2.5 kWp

   Typical cost £9,000–£14,000 · saves about £227 a year

   Rating after77C

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