Using a well to cool a room

[BenBernanke]

Hello,
First of all thank you for your site that I read regularly without registration, but there I find no answer to my questions.
We own a house in which we built a wooden extension with a zinc cladding, 18cm wood wool insulation in the walls and 35 ceiling, and in this extension we have a well with a trapdoor. access in the concrete slab and a channel 125 pour into the slab to pass a pipe to water the garden and other.
I was wondering if it would be possible to use this well (about 4metres depth) to refresh in winter the extension (about 40m2)?
Thank you in advance
Thomas

[izentrop]

Hello and welcome,
Refresh in winter? or use the temperature of the water to put off frost, if it is not heated?