Growing bigger flushes of gourmet edible and medicinal mushrooms has never been easier with our new and improved BoomRoom II Automated Mushroom Grow Chamber. Whether you choose to grow from trays, fruiting blocks, jars, all-in-one bags, or even monotubs, this self-contained, fully-automated incubation and fruiting space gives you full control of environmental conditions critical for mushroom growth, including humidity level and fresh air exchange. Cultivate your favorite fungi and some peace of mind knowing your grow is in good hands with the BoomRoom II.
What is the BoomRoom II?
The BoomRoom II is a new and improved iteration of our BoomRoom Martha tent; a lightweight, stand-alone mushroom grow chamber popular with home cultivators. Outfitted with automated systems for humidity and fresh air exchange, Martha tents remain a popular choice for growing a variety of gourmet edible and medicinal mushrooms. Part of our mission here at North Spore is to consistently update and improve our products, so our BoomRoom II improves on the typical Martha tent design in a number of ways.
What are the features of the BoomRoom II?
• Larger space for maximum yield
Standing at 5 feet tall, 28 inches wide and 20 inches deep, this is our largest BoomRoom yet. Five separate racks hold 20 pounds of substrate or four fruiting blocks each, and the automated fresh air and humidity controls are housed outside the tent to maximize growing space. This arrangement optimizes yield, and allows for multiple, customizable growing projects while maintaining ease of access and management.
• Optimal environmental control
The BoomRoom II excels in maintaining the ideal cultivation environment. Humidity is introduced from the top, creating a conducive atmosphere for mushroom growth, while a fresh air exchange fan system filters out CO2 from the bottom, ensuring a constant supply of fresh air. For those seeking additional automation, a float valve is available separately, allowing the humidifier to be linked directly to a water source for hassle-free refilling.
• Durable
Our zippered tent design is crafted with double-stitched seams and reinforced plastic materials (for bottom, top, and side coverage), guaranteeing longevity and stability. Moreover, the reinforced plastic creates a diffused light effect, mimicking natural conditions to promote healthy mushroom growth.
• Thoughtful design
The BoomRoom II features two ports at both the top and bottom of the tent, allowing for flexible placement of essential automated controls. Three hanging tabs on either side of the tent allow users to neatly organize and hang controls such as the humidity controller and fan speed controller. The kit also accommodates optional accessories like a cycle timer and CO2 sensor (available separately), granting users further customization based on their specific cultivation needs.
Top port for humidification access.
Hanging tabs for easy organization.
What is included in my BoomRoom II kit?
The BoomRoom II features two ports at both the top and bottom of the tent, allowing for flexible placement of essential automated controls. Three hanging tabs on either side of the tent allow users to neatly organize and hang controls such as the humidity controller and fan speed controller. The kit also accommodates optional accessories like a cycle timer and CO2 sensor (available separately), granting users further customization based on their specific cultivation needs.
(1) Clear zippered tent & 5-rack shelving unit
(1) 'Spore Floor'
(1) 'Myco-Mister Ultrasonic II' humidifier
(1) MYCOntroller Humidity controller w/ sensor
(1) FAE (Fresh Air Exchange) fan
How do I set up my BoomRoom II kit?
1. Place your Spore Floor in the desired location of your grow tent. Put the plastic tray on the left or right side of the Spore Floor to leave room for your Myco-Mister Ultrasonic humidifier and FAE Fan fresh air exchange system. Your BoomRoom II can be set up with the components on either the left or right side; choose whichever is best for your space.
2. Fit three long tubes between two of the plastic connectors. The middle support should be placed in the top opening. Ensure all tubes are all the way in their holes; twisting can aid in getting them in farther. This will ensure the structural integrity of your tent!
3. Place four of the short tubes in the openings at the four corners.
4. Repeat until you have reached the top of the unit.
5. Place the shelves across the supports.
6. Unzip the cover and fit it over the frame and tray with the opening at the front. Secure cover to frame using the ties. Ties at the top can be used to secure the door up during the next steps.
How do I vent my BoomRoom II?
Use the bottom port for FAE fan.
1. Identify the intake and exhaust ends of your FAE Fan by locating the arrow that indicates the direction of airflow. The arrow points in the direction of the exhaust end of the FAE Fan. A negative pressure setup will be created by exhausting outside of the tent, meaning air and therefore excess CO2 are pushed out.
2. Your FAE Fan will use the port located at the bottom of your tent. Place your hose clamp around the port sleeve and position the filter around the intake end of the FAE Fan. Slide the port sleeve around both the filter and fan. A second person can be helpful during this step. Move the hose clamp into position so it will hold both the port sleeve and filter in place around the intake end of the fan. Using a Phillips head screwdriver, tighten the hose clamp in place. Included with your FAE Fan are operating instructions.
3. Your FAE Fan speed can be adjusted with the included speed controller. Connect the controller to your FAE Fan. At the top of your tent, behind the port for the mist nozzle, you will find hang loops. Using an S-hook or similar, hang your speed controller from one loop.
What if I want to vent my BoomRoom II outside?
1. Identify the intake and exhaust ends of your FAE Fan by locating the arrow that indicates the direction of airflow. The arrow points in the direction of the exhaust end of the FAE Fan. A negative pressure setup will be created by exhausting outside of the tent, meaning air and therefore excess CO2 are pushed out.
2. Your FAE Fan will use the port located at the bottom of your tent. Place your hose clamp around the port sleeve and slide the port sleeve around the intake end of your FAE Fan. Move the hose clamp into position so it will hold the port sleeve around the intake end of the fan. Using a Phillips-head screwdriver, tighten the hose clamp in place.
3. Extend one end of your ducting and place your second hose clamp around it. Place the ducting around the exhaust end of the FAE Fan. A second person can be helpful during this step to keep the fan in place. Use a Phillips-head screwdriver to tighten the hose clamp around the unit. Check to ensure a secure fit. Follow instruction 3 under ‘Venting your BoomRoom II’ to install your FAE Fan speed controller. Included with your FAE Fan are operating instructions.
4. Foam board insulation can be cut to fit an open window. Cut a hole in the insulation to thread the duct through to the outside.
How do I set up the humidity control system for my BoomRoom II?
1. Your Myco-Mister ultrasonic should be placed on the Spore Floor directly to the left or right of your BoomRoom II tent. The directional mist nozzle is designed to fit into the port on the top of your BoomRoom II. A manual with operating instructions is included with your Myco-Mister Ultrasonic. Refer to the manual to complete the set-up of your humidifier.
2. The humidity controller works by cycling the Myco-Mister on and off to maintain the set humidity. A manual with operating instructions is included with your humidity controller. Using an S-hook or similar, hang your humidity controller from a loop aside your FAE Fan speed controller.
3. Run the humidity sensor through the same port as the Myco-Mister mist nozzle. Position the sensor so it hangs just below the top rack in the middle of your tent. This placement will give an accurate reading while ensuring the sensor is not in direct mist, as it could sustain water damage over time.
4. Tighten the pull cord of the top port around the sensor wire and the mist nozzle, and secure.
What are some environmental considerations for the BoomRoom II?
For the majority of mushroom species, all that is needed to initiate fruiting is a change in environmental conditions. Fresh air, humidity, light, and temperature are the environmental changes that trigger fruiting from fully colonized substrates and successful mushroom growers credit balancing these four factors. The BoomRoom II tackles humidity and fresh air exchange, while temperature and light are determined by the external environment. Properly managing all four conditions leads to the rapid growth of stunning mushrooms.
| BoomRoom II Environmental Considerations |
| Humidity: To keep the BoomRoom II's moisture right, use your humidifier and humidity controller. Aim for 80-90% humidity; most mushrooms thrive there. The controller regulates humidity by cycling the Myco-Mister. Check the water level using the blue gauge. Higher fan speed or colder temps mean more Myco-Mister refills. |
| Fresh Air Exchange: The BoomRoom II has a fan to swap out CO2 for oxygen. For indoor setups, place the tent near a window to vent out. The fan filter helps control spores, but those with allergies or asthma should be cautious. Regular upkeep and harvesting early can lower spores. Higher temps and more growth mean more CO2; adjust fan speed accordingly. Use a CO2 meter for precision. |
| Temperature: Mushrooms thrive at 55-80°F. Unlike some setups, the BoomRoom II doesn't use automated heating. For best results, keep it in a stable, temp-controlled space. If options are limited, pick species that match your temperature range. |
| Light: Mushrooms don't photosynthesize but need ambient light to fruit. Set up in a room with a window for indirect light. If not, any artificial lighting works—house lights, lamps, or UV grow lights. Keep it on for 12 hours daily for proper fruiting and color. |
Troubleshooting
Mushroom cultivation involves trial and error. Despite similar basic needs, different species and environments require slight variations. Even experienced growers need time to perfect the fruiting of new species. Check out our BoomRoom II FAQs for more information.
• High CO2 Levels: If you have skinny stems / fruit bodies, or growth resembling coral, it could be because the carbon dioxide levels are too high.
• Excessive CO2 or Moisture: If your mushrooms have fuzzy stems, the cause could be excessive carbon dioxide or moisture.
• Low Humidity or Harvest Late: If the caps are brown or cracked, it could be that there’s not enough humidity or that they were harvested too late.
• High Temperature or Low Lighting: If the fruiting bodies are pale, it could be because of a high temperature or a low light environment.
• High CO2 Levels, High Temperatures, Too Dry, or Substrate Was Not Fully Colonized: If there was no growth at all, it could be because of high carbon dioxide, high temperatures, because your substrate wasn’t fully colonized, or because your substrate was too dry.
• Low or Temporary Drop in Humidity: If growth stopped after pinning, it could be due to low humidity, or a temporary drop in the humidity.
• Contamination: Monitor your grows for any discoloration, off-odors, mold, or insects which may be a sign of contamination. Remove problem blocks to avoid contaminating the rest of your grow.
Final thoughts on the BoomRoom II
North Spore is excited to introduce the next chapter in home mushroom cultivation, the BoomRoom II, which stands as a testament to innovation and efficiency after years of rigorous research and development. Designed by mycologists for growers of gourmet edible and medicinal mushrooms of all kinds, its sleek, spacious form and automated fresh air and humidity controls are optimized for growth, maximizing yield and minimizing error. As mushroom cultivation continues to evolve, this cutting-edge chamber sets a high standard, promising a brighter, more productive future for growers worldwide.