The anti wind top terminal has a shroud to protect the flue from prevailing winds. Use with oil or solid fuel fired installations. Supplied with a locking band.
Negarra MD Plus is a high quality, prefabricated twin wall flue system suitable for solid fuel, oil and gas fired appliances. The inner wall is manufactured in stainless steel grade 316 and the outer wall is manufactured in stainless steel 304. The system has 25mm of high density insulation.
SW316 inner, 175mm diameter, fully welded
SW304 outer, 225mm diameter, fully welded
25mm high density ceramic fibre insulation
CE approved, HETAS approved
Only 65mm clearance required to combustibles
Negarra MD Plus is used mainly in the UK for wood burning and multi fuel stove installations. It can be used both internally and externally.
Negarra MD Plus Twin Wall Flue Brochure
Does what it's supposed to but nothing else. Great for preventing high winds from making your flue draw too fast but not very good at keeping out the rain.
If you have a lot of fluepipe exposed to the cold this product doesn't really help prevent down drafts very well either but it's a must on a windy hilltop.
Mike Garner - Wales