D
dextrous
Fair enough. But you will also be aware from reading on here that BGas are viewed as being quite pricey, and not necessarily always as good as a local independent.
Without wishing to labour the point too much, your opening post did seem to be referring to powerflushing and not DIY desludgers etc. With reference to this (at long last I hear you sigh), you don't need to be registered to clean out your own system prior to a new boiler installation. However, it would be worthwhile ensuring that whoever you choose to fit the boiler will be happy with this arrangement.
Without wishing to labour the point too much, your opening post did seem to be referring to powerflushing and not DIY desludgers etc. With reference to this (at long last I hear you sigh), you don't need to be registered to clean out your own system prior to a new boiler installation. However, it would be worthwhile ensuring that whoever you choose to fit the boiler will be happy with this arrangement.
