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Good afternoon. Thanks for the comment. As you can see my greenhouse is not real big. I built it coming off of my storage shed. The GH is 6' X 9' and made for less that $100.00. The roof is three sliding glass doors (free). The windows I found for free. The white material is 1/4" corrugated plastics also for free. I gave the thought of solar water heating but being the large guy I am there is not a lot of room for a barrel to store the hot water. I could use the space, under my long shelf, but I have a raised bed that I grow lettuce, radishes and onions during the winter. I call it my salad bar. LOL
Hi back at you. Were did you teach? I retired from Lewisville ISD in Lewisville Tx.
Hi Guys! Some of the things I learned over the late winter seed starting. The most important was I did not need all the hose running the full length of my shelf. (12') I trimmed it to only cover about half that length. I did not need it under my plants after they were started. This helped with not having to run the coffee heater as much. I have added and heater, to the greenhouse, using the hot water from the seed starter. Check out my new addition. https://www.instructables.com/id/Coffee-Maker-Heater-for-Seed-Starting/
That is a thought. I could use 1/2 inch black hose and a separate pump to run the heated water through the bucket I use for my seed starting. It would have to be on a thermostat to keep it from cooling off the water for seed starting and the heater.
Hot water heater for my gre...View Instructable »
Update; I have shut down the heater. It has done it's job very well. I have started broccoli, cauliflower, pepper, tomato and several different flower seeds using this setup. I was able to hold the soil temp to around 87 degrees. If needed I could go up or down. This setup has run for three months with no problem. I am very pleased with how it has preformed. The only change I am planning on doing is reducing the area that the heater hose covers. I need a place to put the seedlings after they are up that is not heated. Now to wait until the garden soil temp is warm enough to plant all these seedlings. Thanks for looking at my DIY