Let's dispel some Eco Homes myths

Reducing energy is only one element of Eco Homes and solar hot-water heating and other renewable energy sources are rarely the most cost-effective method of achieving Eco Homes points for a standard home (6 February, page 33). Installing gas central heating, preferably a condensing boiler, wherever possible, is the most significant and straightforward way to reduce emissions.

Yes, badly fitting doors and windows do leak heat, but draught-proofing may be a more cost-effective option than replacement.

Achieving a high rating does not necessarily require expensive technologies, but it is important to realise that Eco Homes has very specific requirements to ensure that sustainable measures are implemented in an effective way, such as avoiding badly designed cycle storage that won't be used.

All too often, Eco Homes assessors are brought in at a late stage after inappropriate specification and design choices have been made. Bolting on measures to an existing design is expensive. At the earliest possible stage, either download the Eco Homes guidance document, enlist for training from BRE or commission a licensed assessor for guidance. Details of all these options are available from www.breeam.org.

Finally, may I point out that SAP is measured on a scale of 0 to 120, not 0 to 100.