Dampp-Chaser recommendations

[Bec and John]

Hi,

Just wondering from those experienced installing dampp-chaser units 
what they would recommend for a Boston GP-193. This is in a church 
where the air conditioning and heating are turned on usually just on 
Sundays (or occasional events throughout the week). It's not located 
directly in the path of any vents, and it holds its tune reasonably 
well when the humidity/temperature is regular.

Thanks!

- John