To create a microclimate, we must make an interconnected system, with a climate chamber, where air flows are mixed, heated and humidified. Ventilation only distributes them evenly throughout the volume of the growing room.
In my instructions you will find all the necessary information for the competent installation of the ventilation system.
For ease of use, the calculations are provided in both metric units and U.S. customary units (feet, pounds, etc.).
Table of Contents
For example, I used a growing chamber measuring 8 by 5 meters (26.25 by 16.4 feet) so that you can clearly see how to calculate the blocks for your room's size.
The calculation was based on blocks with a diameter of 22 cm (8.7 inches) and a weight of 9-11 kg (20-24 lbs). If you are using blocks of a different size, you can also calculate them using this method.
The guide also includes a chapter on how to arrange small blocks weighing up to 3 kg (6.6 lbs) with side and top fruiting.
These tables contain pre-calculated ventilation parameters, available in both metric and U.S. measurement systems. They are designed for rooms with one air duct or side air ducts.
2. Calculator for larger rooms (more than 9 tons of substrate)
This Excel calculator allows you to enter your data (number and weight of blocks), and then it automatically calculates the necessary ventilation parameters on the "Results" sheet. The calculator is available in both metric and U.S. versions.
In the ready-made tables for small rooms, I calculated all the data myself (based on the calculator). This is very convenient if you have a small growing room - you just look at the row you need in the table and see which fan you need to buy and the sizes (diameters) of all the necessary pipes and air ducts.
If you choose the calculator, you can calculate any amount of substrate. The calculator has a cell where you enter any number of blocks and their weight.
For example, if you have several large rooms, and several small ones.
Below you will find detailed descriptions of the tables and the calculator.
The cost of the guide plus the tables (or calculator - of your choice) is $60 USD.
To place an order, please contact me at: e-mail: [email protected]
WhatsApp: +380503960696
I will send you an invoice, which you can pay online using Visa or MasterCard.
If you have any questions or are ready to place an order, I’ll be happy to assist you with the process.
Chapter 1 | General information about how ventilation works in the grow room | 2 |
Chapter 2 | Instructions for the selection of equipment | 5 |
Chapter 3 | Equipment placement in the ventilation system | 10 |
| 3.1. Ventilation diagram for a room with side air ducts. | 10 |
| 3.2. Possible layouts for one air duct (without side ducts) | 11 |
| 3.3. Guideline for the sequence of equipment placement in the ventilation system | 12 |
| 3.4. Recommendations for air cooling if the climate is warm and humid | 17 |
Chapter 4 | How to make air ducts | 18 |
Chapter 5 | Explanations for the ventilation calculation table | 22 |
Chapter 6 | All about block placement | 24 |
Chapter 7 | Examples of block calculations | 28 |
| 7.1. Instructions for calculating blocks in a room with one air duct | 28 |
| 7.2. Instructions for calculating blocks for a room with side air ducts. | 33 |
Chapter 8 | How to use the calculator to calculate the diameter of the cups | 39 |
These tables are designed for rooms used for growing oyster mushrooms with a substrate load ranging from 1 to 8 tons. The calculations provided include:
The required power of the blower and exhaust fans
The diameters of fresh air and recirculation ducts
The cross-sectional area of pipes, for both square and rectangular metal ducts
The diameter of polyethylene film air ducts and plastic cups
In the figure below, you can see an example of how this table looks
For ease of use, the calculations are provided in both metric units and U.S. customary units (feet, pounds, etc.).
Upon payment, you will receive tables:
The table is applicable for narrow rooms, not more than 6 meters wide.
The table is compiled in the same way as the previous one, but there is a small calculator for calculating the diameter of the nozzles-cups, depending on the length of the air ducts.
You substitute the total number of cups - the text provides step-by-step instructions on how to count them and what distance should be between the air supply nozzles. And the calculator calculates the required diameter.
The calculator is created in Excel. In this calculator you can calculate any amount of substrate, starting from 1 ton.
Even if you've never worked with Excel, the calculator is very easy to use.
You open the file, enter your data in the green fields on one page,
and see the results on the next page:
The page with results (calculations) is locked to prevent changes.
So, you can view the numbers, but you cannot modify or delete anything, thus preserving the formulas.
I recommend downloading this file and not working directly in it. Copy it under a different name and work with the copy. If you accidentally delete cells on the first page, you can copy the file from the original.
- The power of the supply fan,
- The diameter of air ducts and plastic nozzle cups through which air will flow,
- Tin air ducts located in front of the fan.
The calculator includes square dimensions if you're using square tin ducts (those located in front of the fan).
If the duct is rectangular, just take the length of one side that suits your needs.
For example, if the ceiling height is insufficient, one side should be shorter in height, while the other side can be longer.
To find it, divide the cross-sectional area (row 16 in the figure) by this length and you'll get the length of the second side.
You will receive a guide along with the calculator.
The cost of the guide plus the tables or calculator of your choice is $60 USD.
To place an order, feel free to contact me — I'm happy to help!
e-mail: [email protected]
WhatsApp: +380503960696
I will send you an invoice, which you can pay online using Visa or MasterCard.