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What are the latest regulations regarding certifying unvented hot water systems?
Anonymous user 13/03/2024 - 2.30 PM
How often does the competent person have to re-qualify to be able to self-certify unvented hot water systems under the G3 Building Regulations?
Are you a tradesperson and able to answer this question?
1 Answer
Anonymous user
every five years, tho a refresher coarse is all that is needed if you alreay have it
Answered26 March 2012
1