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摘要

Anyone intending to install a new gas-fired boiler or replace an existing one (in England and Wales) will need to comply with the clauses of amendment to Approved Document L1 (2002) and use a condensing boiler as opposed to exchanging like for like. Well, actually, you might not have to, if it can be shown that it is unreasonable to do so. I'll come back to that later. Similar revisions are on the cards for replacing oil-fired or solid-fuel boilers, although presumably, because there is more infrastructure work required, these changes will not come into force until 1 April 2007. However, because of technical requirements for the correct installation of condensing boilers - the restrictions on the siting of flue outlets, for example - compliance with the need to install a condensing boiler may entail significant additional enabling costs.