New research: natural gas appliances emit much more methane than realized

Re:New research: natural gas appliances emit much more metha... by Godel_unicode on Friday February 04, 2022 @03:05PM (#30212241)

This is the thing I think is missing from all of these analyses; does the fume hood vent to the outside? I have lived in plenty of houses/apartments/condos with gas stoves, and external venting has always been a hard requirement for me.

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Re:New research: natural gas appliances emit much more metha... by Imnimo on Friday February 04, 2022 @03:11PM (#30212355)

The Twitter thread links to this study:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4909253/

Which finds that fume hoods do not help:

>NO2 concentrations in the kitchen and bedroom did not significantly change following ventilation hood installation.

These are outdoor vented:

>Ventilation hood: Range hoods [BROAN® (Hartford, WI, USA) Range Hood model numbers 433611, 403001, or 423001] with ventilation fans to the outdoors and secure seal to minimize energy loss were installed over existing gas stoves.

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Re:New research: natural gas appliances emit much more metha... by nobodyofnote on Friday February 04, 2022 @03:29PM (#30212633)

I keep seeing this study referenced. However, I find it pretty glaring that the Range Hoods they used are not even adequately rated for gas stove usage.

For instance, they listed "flow rates for the models used as 160–220 cubic feet per minute".

These are range hoods typically used for electric models - not gas. 400 CFM is generally considered a baseline hood for gas stoves (100 CFM / 10000 BTU).

I would feel much more confident in their results had they used more powerful range hoods that were more appropriate for the stoves in question.

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Re:New research: natural gas appliances emit much more metha... by aidenn0 on Friday February 04, 2022 @03:44PM (#30212890)

I've never had a kitchen with a 400CFM+ range hood, despite 50-50 gas appliances. All but one have been micro-hood combos and those don't move much air at all.

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Re:New research: natural gas appliances emit much more metha... by Scoundreller on Friday February 04, 2022 @03:16PM (#30212421)

I hope they all do, where they exist anyway. But that’s a far more open system than a wood/coal stove which only has small air intakes, sometimes configured to draw from outside so the whole system is sealed from inside air

As an aside, I lived in an old house with electric range which just blew the air up at a 45 deg angle, but as people have gotten taller, it would just blow into my face.

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