Carbon monoxide and fruit tree

[sammy_roser]

Hello all.

I have a patio cherry tree that currently sits in front of my sliding patio door. As I am having French doors fitted soon I need to find it a new home. Other than in the middle of my patio, there is a space of wall available, but this where the flue from my boiler comes out. The tree is kept well trimmed and wouldn't come close to covering the flue, and I know plants are fine with carbon monoxide usually, but will the fruit still be fit for human consumption?

Thanks very much

[Greenleaves]

I would be more worried about restricting the flue gases

[veggiechicken]

Don't know what sort of boiler you have but mine gives out a lot of steamy stuff. Might that affect the leaves?

[Brack]

Carbon monoxide is only a problem to us because it has a stronger affinity to the haemoglobin in our red blood cells than oxygen does (ie. You die because your blood can't transport oxygen any more).
Plants don't use haemoglobin so theyd be fine. Excessive carbon monoxide concentrations can cause a reduction in photosynthesis but this won't be an issue in something which is out of doors. In an open environment carbon monoxide will rapidly diffuse away and/or react with oxygen to form carbon dioxide. If anything, the heat, moisture and co2 from the flue, provided they're not scorching the plant, should give it a nice growth boost - think of the commercial greenhouses with boosted co2 levels, they're usually done by burning gas so you're effectively doing something similar, but with it being open air the extra co2 and heat will dissipate faster.

[sammy_roser]

Thank you Brack for your detailed reply.

Green leaves it doesn't cover the flue at all.

Veggiechicken, nice to see you're still around and looks like it will make the tree happier!