I didn’t see it among your links, but GiveWell has an interim intervention report on this. Their summary is:
What is its evidence of effectiveness? Results from multiple randomized controlled trials (RCTs) suggest that distributions of clean cookstoves do not have clear evidence of effectiveness at reducing health problems attributable to air pollution. The evidence we have reviewed in our preliminary investigation finds limited impacts on women’s health and no clear impacts on children’s health under typical use. Distributions of clean cookstoves may have been less effective than expected due to implementation challenges, such as low compliance with using the replacement stoves and failure of the cleaner stoves to reduce air pollution sufficiently.
How cost-effective is it? We have not produced a cost-effectiveness model for clean cookstoves because we have not yet seen strong enough evidence to model a health benefit of the intervention.
I didn’t see it among your links, but GiveWell has an interim intervention report on this. Their summary is:
What is its evidence of effectiveness? Results from multiple randomized controlled trials (RCTs) suggest that distributions of clean cookstoves do not have clear evidence of effectiveness at reducing health problems attributable to air pollution. The evidence we have reviewed in our preliminary investigation finds limited impacts on women’s health and no clear impacts on children’s health under typical use. Distributions of clean cookstoves may have been less effective than expected due to implementation challenges, such as low compliance with using the replacement stoves and failure of the cleaner stoves to reduce air pollution sufficiently.
How cost-effective is it? We have not produced a cost-effectiveness model for clean cookstoves because we have not yet seen strong enough evidence to model a health benefit of the intervention.