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How to Heat Your Greenhouse on a Budget

How to Heat Your Greenhouse on a Budget

Worried about the cost of heating your greenhouse this winter? Rising fuel prices and extreme cold weather can add up quickly if you don’t know how to maximize every strategy that could help you cut your energy bill. Learn tips and tricks to heat your greenhouse on a budget. 

Relying solely on heaters to heat your greenhouse is expensive. Depending on your zone, there are things you can do to supplement heaters and help reduce heating costs.

How to Heat Your Greenhouse on a Budget

Paint It Black

Paint the outside of plastic containers with flat black enamel paint. Fill them with water and place them in areas where they will absorb the most sunlight throughout the day. When the temperatures fall at night, heat emitted from the water will help keep your greenhouse warm. This technique can maintain an average of 20-30 degrees warmer in your greenhouse than outside temperatures!

Gimme Compost

Get the most out of your organic waste by creating a compost pile. Tea bags, fruit and vegetable scraps, dryer lint, newspaper, grass clippings and egg shells make great compost. Compost helps provide essential nutrients to your plants, but also creates heat that is released during their chemical breakdown. Place your scraps and trimmings in 55-gallon drums or a ring of wire mesh. Be warned that they can create immense amounts of heat—well above 100 degrees Fahrenheit—so use caution when using this method.

It’s All About Row Covers

Garden fabric, also known as row covers, is a simple way to help turn up the heat when the weather outside demands it. Not only can row covers protect plants from cold and wind, but also they shield them from insects and prevent overheating in the summer. This fabric is either draped over hoops or secured to the ground. Row covers can be reused if handled with care, hence, reducing costs. Even if yours last one or two seasons, row covers have secondary uses such as  as weed barriers or covers during milder weather.

Seal It Up

Retain as much heat in your greenhouse by preventing as much warm air as possible from escaping. Seal all joints and gaps in the greenhouse with silicone caulking or installing weather stripping around doors, seams of glass and at the foundation. Repair any tears in film, coverings or cracks in glass to hold on to all of your hard-earned heat! Regular maintenance like this is one of the simplest ways to help you improve the energy efficiency of your greenhouse.

Heat What You Need

Particularly for larger greenhouses, heating the entire space can get expensive quickly, but the good news is that it might not all be necessary. Separating plants into zones inside the greenhouse with partitions makes it possible to heat the needed space more efficiently. Not only is this a more economical approach, but also it provides the grower with more control over the temperatures, which helps create a more ideal environment for each plant grown.

Got questions about preparing your greenhouse for the winter or what works best in your zone? Let us know! Call Gothic Arch Greenhouses at 1-800-531-4769 or visit