The Sigma automatic ventilation window is a perfect complement to your Sigma Greenhouse. Provides heat-activated ventilation and improves air circulation inside your Sigma Greenhouse. It is easy to install.
Galvanized Steel Structure
Rust-Resistant
3′ × 1.4′
Description
Reviews
Shipping
The Sunny automatic, heat-activated ventilation window is a perfect complement to your Sigma Greenhouse. Provides extra ventilation and improves air circulation in your Sigma Greenhouse. It is easy to install.
For maximum efficiency, we recommend that you install a ventilation window on each side of the greenhouse. Only fits Sigma greenhouse models.
Technical data:
Maximum window opening, approx. 45cm (17 23/32 in) – depending on adjustment and load
Maximum opening at 30 °C (86°F)
Start opening temperature 17 °C-25°C (62,60°F-77°F)
This is our first real greenhouse. We set up our greenhouse in Kapuskasing Ontario, hardiness zone 2!
We have the Sigma 12x20. Our first season, we grew four tomatoe varieties, four pepper varieties, tomatillos, ground cherries, stevia and basil. We went from a 75 day growing season to a 100 day growing season and this year we plan to heat it. Our buying experience was excellent and the shipping was fast considering how far up north we are.
Aside from growing food in it, my favorite thing about the greenhouse is that it's a winter reprieve. It can be -28 out and it's a sunny +12 inside.
To a person considering buying one, I would say.. DO IT! The only negative thing I can say is for first timers, the directions could have been more detailed. I wish I could build it over again.. but that's hindsight.
Cheers, Tammy Nephin
Greenhouses are amazing products, and they require special shipping and handling. That is the reason, we have been working diligently over the past year to secure preferential shipping rates for our customers. Most shipments across Canada and the US are between $250 and $450.
We will contact you to confirm shipping price, based on your location and order size.
Shipping on most orders is between $250 and $450, customers in remote areas may need to pay extra.
When you place your order, please make sure to enter the correct Phone and Address at checkout. You will be contacted by phone before the item is shipped. We cannot be responsible for deliveries to incorrect addresses.
As part of the delivery process, we require a contactable telephone number (for the courier company to contact you) before the item is shipped.
We do not ship to PO Boxes, as in most cases you will need to sign for your item.
Orders placed on weekends or public holidays will not begin processing until the next business day.
Heavy Duty Design
Extra durable construction with galvanized steel for year-round stability
