Two hours on your site with a tape, an infrared thermometer and a lot of questions. I look at your structure, orientation, glazing, end walls, air gap, ventilation and whatever heat you have, then tell you plainly what crops it will hold through a Minnesota winter and what it will not. You get the numbers written up afterwards: a rough heat load, what a second layer of poly and an inflation fan would buy you, a suggested planting window for greens, and what I would fix first if the money is limited. If the honest answer is that your structure should not be heated at all, I will say that too and you will have saved yourself a boiler. I travel up to sixty kilometres from Minneapolis. Beyond that we can talk. Two hour minimum, billed hourly after that.

Two hours on your site with a tape, an infrared thermometer and a lot of questions. I look at your structure, orientation, glazing, end walls, air gap, ventilation and whatever heat you have, then tell you plainly what crops it will hold through a Minnesota winter and what it will not. You get the numbers written up afterwards: a rough heat load, what a second layer of poly and an inflation fan would buy you, a suggested planting window for greens, and what I would fix first if the money is limited. If the honest answer is that your structure should not be heated at all, I will say that too and you will have saved yourself a boiler. I travel up to sixty kilometres from Minneapolis. Beyond that we can talk. Two hour minimum, billed hourly after that.