We just moved to Kalispell and are not currently doing aquaponics. We did have an aquaponics system in San Diego where we moved from and we are anxious to get one started up here. Not sure when that will happen as we do not currently have a greenhouse, nor do we have any experience with greenhouses and their heating. I'm not sure if it is possible for it to be cost effective with the need to heat a greenhouse. I'm happy to answer any questions about our previous aquaponic experience and would love some feedback on greenhouse heating options. Aquaponics is very enjoyable!