Widening a chimney

Postby basil53 » Tue Aug 28, 2007 12:42 pm

I am installing a woodburning stove in my lounge. There is already a fireplace with a back burner installed. Have removed the cosmetic brick surrounds to reveal the breeze block chimney and lintel. Good news the lintel is high enough for the wood burner. Bad news, the chimney hole is not wide enough for the burner. Can I widen it without moving the lintel? If so any tips, dos and don'ts. The house is only about 18 years old so chimney and liner are in good nick.
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Simply Build It

Postby thedoctor » Tue Aug 28, 2007 7:56 pm

The lintel must extand beyond each side of the hole by at least 150mm Basil.
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