... but not long enough for its own article.
If you use gas heat in your greenhouse, you can try these couple of tricks to lower heating costs and protect your orchids.
First, set your thermostat to 55 degrees. That is typically the lowest you want to let the center of your greenhouse temps go to. Now, keep in mind that I said 'center'. The edges (areas close to the walls) of your greenhouse will go much lower than the area in the center of the house (Usually).Since we use gas to heat the greenhouse, our bill was pretty steep. By adding just one electric, oil filled, radiator type heater to the GH and switching to a tankless (electric) water heater we reduced the overall total gas bill in a huge way. We set the electric heater on 'Level 9' and put it opposite of the gas furnace. Working together, they keep the greenhouse an even temperature and because the electric one has a thermostat of its own, it will stay on after and kick-on more often than the gas heater. So for now since electric is a bit cheaper than gas, this works well for us.
We also added an additional fan this winter to blow the air in the greenhouse around in a circle instead of just using the fans blowing down from above. This seems to help keep the temps near the edges of the greenhouse a bit higher.
A final trick to help protect your greenhouse is a temperature alarm.We installed the alarm when we first built the greenhouse and it keeps on working like clockwork. How does it work? You simply set a high level for how hot it has to be inside your greenhouse before the alarm sounds and a low level for how cool it has to get. In the summer, remember to switch to summer mode and in the cooler months remember to switch to winter mode. It works great and is really loud. We put the bell on the outside of the greenhouse so that we could hear it inside our home.