In article ,
ARWadsworth Thu, 7 Jan 2010 15:32:30
writes

http://www.boilerscrappagescheme.co.uk/2010/01/government-boiler-scrappage-scheme-finally-launched.php

Vary slow to load ....[*]

suggests that you can use any installer.

The Energy Saving Trust seems to be the one running the scheme

http://www.energysavingtrust.org.uk/...products/Heati
ng-and-hot-water/Boiler-scrappage-scheme

Quote:

Who can carry out the installation of your new boiler?

Installation of a gas or oil boiler must be carried out by an installer
registered with a competent person's scheme (such as GasSafe or OFTEC).
Installation of a microgeneration technology must be carried out by a
person qualified under the Microgeneration Certification Scheme.

..
..[*] still waiting ....
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Les Desser
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