Greenhouses: Healthy for you, Healthy for the Planet
Thursday, January 15th, 2009 | Author: Organic Blogger

The greenhouse is one of the simplest and easiest ways to do your part for the environment, not to mention help you out as well. A greenhouse is also relatively simple to get a hold of and maintain. And even if you aren’t the world’s greatest gardener, the knowledge that you are helping the environment and yourself is enough to push you through the most arduous weeding session.
They are, in and of themselves, solar. But they’ve been around for a lot longer than the “green” movement. Watch any gardening program, and you’ll invariably see someone walking in to their greenhouse, and pottering around.
Why Bother With A Greenhouse At All?
The answers are simple and numerous. If for no other reason than growing your own vegetables all year round, a greenhouse is invaluable. Growing your own vegetables not only keeps you honest in what you are eating, but it also reduces the demand on the agricultural industry, lessening their workload and thus lower your burden on the environment.
How to Keep Your Greenhouse Hot

There have been problems though, with keeping a greenhouse hot. You would expect that a greenhouse has no problem staying hot, seeing as that is what it’s all about to be a greenhouse. But what happens when night falls?
This is where you need to add a bit of ingenuity or technology to the situation.
There are two methods to keeping your greenhouse warm at all times; passive and active. An active way to do this is simply to hook it up to an electrical source which will provide the energy to pump heated air back in to your greenhouse when it starts getting dark, and thus cool. This method however is more complicated and more expensive than option number two.
The second, is definitely the better option, as we’re sticking to the all natural, no added benefits scheme. To keep your heat up, you need a heat sink which stores the heat through the day, and as the greenhouse turns in to a coolhouse, it starts letting that heat back out again. What you want then, are things like barrels of water, rocks or concrete walls that trap the heat in them during the day, and let it out at night.
If you’re going with the second option, here are a few tips.
- Use 55-gallon drums filled with water, and painted nice dark and non-reflective colors to enhance the heat absorption
- A pile of rocks in a wire-mesh cage will also work well, if you’re short on dirty great gallon drums
- Ensure that your sinks are well situated to collect the most sunlight
- Furthermore, ensure that they are not touching or even near (if you can help it) the sides of your greenhouse. The cold outside will draw that heat straight out through the walls
- Allow for 2 gallons of water/80 pounds of rocks for each square foot of greenhouse admitting direct sunlight on to the heat sinks
- Ensure that your greenhouse is as airtight as humanly possible, so that there are no extra ways for the heat to get out of there
Really interested in doing this right? Ask your local hardware store or nursery for advice. But I can guarantee you that there will be nothing as good as eating vegetables that you’ve grown yourself; especially with the added benefit that you’re doing the environment a favor.
Category: Healthy Living, Organic Health | 4 Comments








