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Questions We Get a Lot
The right heater depends on your greenhouse's square footage, insulation quality, and your local climate. Our 1500-Watt Portable Greenhouse Heater works well for smaller structures, while the Smart Greenhouse Patio Heater with a built-in digital thermostat and remote control gives you more precise temperature management for larger or more demanding setups. When in doubt, sizing up slightly gives you a buffer on the coldest nights.
Good ventilation prevents heat buildup, reduces humidity-related disease pressure, and keeps CO2 levels stable for healthy plant growth. A general rule is that your exhaust fan should be able to replace the air in your greenhouse at least once per minute. Our exhaust fans range from 764 CFM to 1520 CFM, so matching the right model to your space's cubic footage will set you up well.
Plants use CO2 during photosynthesis, and in a sealed greenhouse environment, CO2 levels can drop quickly as plants consume it. Our CO2 Controller with a Dual Channel NDIR Sensor monitors levels between 0 and 5000 PPM and includes day and night detection, so your growing environment stays dialed in around the clock. It's especially valuable in hydroponic or high-density growing setups where precision matters most.
We offer Free Shipping on Most Orders Within the Continental U.S. (excludes AK/HI), so most customers receive their heaters, fans, and controllers without any added shipping cost. If something isn't the right fit, our 30-Day Returns policy gives you time to evaluate your purchase — just refer to our Return Policy page for full details on how to initiate a return.
About Our Greenhouse Climate Control Collection
Maintaining the right temperature, airflow, and CO2 balance inside a greenhouse is one of the most important factors in year-round growing success. At Homestead Harvest Supply, our Greenhouse Climate Control collection brings together the equipment growers rely on to create and sustain ideal plant environments. Choose from the 1500-Watt Smart Greenhouse Heater with digital thermostat and remote control for precise temperature management, or the Greenhouse Portable Heater for flexible warmth in smaller spaces. Our wall-mounted exhaust fans, ranging from 764 CFM to 1520 CFM with variable speed controllers, keep air moving and humidity in check through every season. For growers focused on maximizing plant performance, the CO2 Controller with Dual Channel NDIR Sensor offers accurate monitoring with day and night detection. Rounding out the collection, our Indoor Grow Tent Kit and drip irrigation options support a complete, controlled growing system. Every product is chosen with durability, reliability, and your long-term growing confidence in mind.
