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Unvented combustion appliances, especially stoves
Sal Santamaura Member Posts: 466
Yeah, that comes up every so often. And, as usual, they don't mention whether the units in question were tested and adjusted with digital combustion analyzers. Without that info, their position means nothing.All Steamed Up, Inc.
Towson, MD, USA
Steam, Vapor & Hot-Water Heating Specialists
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The new england journal of medicine article it refers to says nothing about indoor pollution and instead talks about the climate change and other macro environmental effects. It is unlikely the claims it makes against gas cooking stoves are caused by gas cooking stoves but rather other factors that are simply correlated with the existence of gas cooking stoves.1
Thats what they make hood fans for if that are concerned.
I read a similar article but it said they are polluting the air or something of that sort.0
Houses and buildings are becoming 'tighter' and gas cooking appliances are becoming larger i.e. 'gourmet' versions (almost institutional/commercial) i.e more BTU input/output burners and ovens. This is not a good trend unless a heat recovery ventilation system is also included in the misx.0
And a properly sized range hood with an interlocked fresh air intake while in use.psb75 said:
Houses and buildings are becoming 'tighter' and gas cooking appliances are becoming larger i.e. 'gourmet' versions (almost institutional/commercial) i.e more BTU input/output burners and ovens. This is not a good trend unless a heat recovery ventilation system is also included in the misx.You can have it good, fast or cheap. Pick two1
Even if the range is larger, i suspect the total amount of gas burned is similar, you just boil the water faster. Tighter houses certainly is an issue. Of course the supposed studies cited talk about low income housing which tends to be older and very leaky.0
I would guess that "gourmet" sized/type of ranges would have the hood to go with it.
That type of range is most likely not in the low income units.
Rather old badly burning burners and constant pilots burning dirty.
Any mention of unvented fireplaces in all this?
Or second hand smoke..... of any type.1
If it comes from California it must be true. I love when they say there is a consensus. A consensus is an opinion of something that hasn't been proven. (Just like Codes). All kinds of mentioning of high levels of NO2 but no actual numbers. I have tested equipment in the past for NOX but not stoves. However, based on different adjustments that were made to meet EPA guidelines, I am not sure a gas stove can create a flame hot enough to make high levels of NO2.2
NO2 is produced when a flame is 2800 degrees or higher. Based on combustion charts that would be burning natural gas at 3%-5% O2 or 15% to 40% excess air. Ovens operate above 10% O2.
People are still false reporting that NO2 increases acid rain which has been scientifically been proven to be false!2
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