More Likely
Since water is a byproduct of the combustion of hydrocarbons (buring gas) it can condense in the exhaust system and exit as droplets or a fine mist. One the whole exhaust system is warm the water will no longer condense and the 'problem' goes away since all the water leaves as vapor.
Since water is a byproduct of the combustion of hydrocarbons (buring gas) it can condense in the exhaust system and exit as droplets or a fine mist. One the whole exhaust system is warm the water will no longer condense and the 'problem' goes away since all the water leaves as vapor.