Featured Sunglo Greenhouse
We are taking a break from the Blast from the Past video series during our home and garden show season, but in the meantime I wanted to share an email received this week from a most ingenious customer. I have been working with Marshall over the course of the last couple of months and it has been amazing to watch this project come together.
In two separate e-mails I will send some photos of our recently completed 1700-C greenhouse. We are very pleased with the quality of the 8′ X 10′ lean-to model. It is attached to the south-facing wall of our garage. In spite of the cool cloudy and sometimes rainy days in SW Washington, there have been occasional sunny days in February that the automated exhaust fan has come on to cool down the greenhouse when it reached 90 degrees.
An added benefit of the lean-to model is that the north wall of the greenhouse is the insulated wall of the garage and if desired, I can open the windows of the garage and allow the natural heat of the greenhouse to come into my woodworking shop in the garage.
You will see from the pictures that I chose to put in two in-ground insulated growing beds in hopes of growing vegetables in the winter. Each bed is about 7 feet in length and 14 inches wide and insulated with two inch-thick styrofoam. One of the beds is 10 inches deep, the other is 5 inches deep. They each have thermostatically controlled heat cables set in sand in the bottom. The cables are then covered with wire mesh to protect them before filling the beds with soil. The soil temperature being maintained at 70 degrees by the heat cables will be optimum to stimulate growth which will save heating the entire greenhouse. Since soil temperature is the determining factor for germination and growth, the only other heat required will be to keep the greenhouse just above freezing. Supplemental HPS lighting suspended from the ceiling will extend the daylight hours to 14 – 16 hours per day, which will be necessary in the winter. The 1000 watt HPS bulb will also generate some heat that will be beneficial. I will still have plenty of floor and bench space for propagating other plants to transplant into the garden in spring and summer.
The electrical control panel for ventilation and heating is working well but I did have to add one more outlet for the heat cables. The extra outlets are also useful for heat mats used on the bench.
Thanks again for all your help and answering questions I had during construction. We are looking forward to giving the greenhouse a good workout the remainder of the winter and into the spring with hopes of having fresh veggies next winter.
Sincerely, Marshall Himes
It just goes to show that the control you have over the growing environment in a greenhouse is only limited by your imagination. This is a truly phenomenal design Marshall and thank you for the great pictures!