How to Heat a Greenhouse without Electricity?

With the advancement in technology, farming has been embraced with an open mind. The number of people engaging in farming or indoor gardening is increasing each and every day. In particular greenhouses have become quite famous attributed to the fact that they help extend the growing season. However, this is not without its own set of challenges. How do you heat up the greenhouse? In this post we shall highlight some of the ways on how to heat a greenhouse without electricity.

Why not use electricity?

We can all agree to the fact that electricity is one of the greatest human inventions. Advancement on technology owes a huge chunk to electricity which in most cases has been the major source of power.

Electricity inconvenient in the sense that it is only one switch away however, come to think of it, heating up a greenhouse with electricity is not economical. You would be required to do it regularly and this will pile up to a huge electric bill at the end of the month.

There is no problem with this but this post will walk you through economical ways on how to heat up a greenhouse without electricity.

Guide on how to heat a greenhouse without electricity?

One would wonder why is it necessary to warm the greenhouse? This is so as to create an ideal environment for the growth of the plants. Most plants don’t thrive well under cold or freezing temperatures.

Also, temperature influences humidity. Warm air has a higher capacity to hold more water hence high humidity. And, given the fact that most plants require high humidity, it is, therefore, necessary to keep the greenhouse warm. How do you go about it?

1. Making compost in the greenhouse

We all know of the benefits accrued to using natural manure. Most people are avoiding chemical fertilizers due to reasons known best to us. Compost manure is one of the best natural fertilizer, the obvious question that arises with this is, how is making compost related to warming a greenhouse?

To understand this, we have to go back to the basics on how to make compost. You have to make a silo that should be airtight and leave it to decompose. It is through decomposition that heat is emitted. A good compost pit with enough oxygen should hit 100 degrees in temperature. This will help warm the greenhouse with an added advantage of consistency.

Making compost will ensure help keep the greenhouse warm even during winter.

2. Use thermal mass objects

What are thermal mass objects? Basically, these are objects that absorb heat when it warm or hot and release it when it gets cold. Thermal mass objects are crucial especially in environments where it gets extremely cold at night.

Examples of objects that can be used as a thermal mass are rocks, clay and bricks. In most cases, rocks are used. Ideally you can place have two rocks, one on the east and the other on the west to absorb maximum solar heat. The rocks will warm the greenhouse at night by releasing heat absorbed during the day.

3. Increase the number of windows

Though this might be slightly expensive, doubling the window panes will play a crucial role in warming a greenhouse. This is so given the fact that more light and heat will be absorbed during the day. The heat is retained in the greenhouse and helps keep it warm at night.

4. Insulation

Depending on the location, in most cases, the northern wall of the greenhouse never gets exposed to direct sunlight. To help warm and retain the heat, there are recommendations that the northern wall should be insulated.

Ideally, a thermal mass insulator should be used, for instance, bricks or clay.

5. Water

For those not green to a greenhouse, more often than not you will find large water barrels inside the greenhouse, what purpose does it serve?

In most cases that barrels are painted black. There is a reason for this. Black is good at absorbing heat. The water heats up slowly and loses heat slowly as well. During the day, water heats up to later help keep the greenhouse warm at night when the temperatures fall.

Water also helps reflect light and heat ensuring uniform heat distribution in the greenhouse.

6. Solar heater

This will cost you but yet again worth every single dollar spent. Solar energy is free; you can purchase a solar heater that will absorb heat during the day to emit it night when turned on. This requires capital but with the right brand it will serve you for years.

Final verdict

There you have it on how to heat a greenhouse without electricity. No more monthly power bills that will constrain you. If you follow the 6 ways we highlighted you should be in a position to heat your greenhouse without electricity.

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