NEW – Invisco is the FIRST to offer big belt driven fans for mounting high in your attic. Belt driven fans run so slow the propeller noise is almost eliminated. 

NEW – Invisco is the FIRST to offer our patent pending SmartSpeed(tm) controller that ELIMINATES the need to get up off your couch to change speeds. Forget 1 or 2 or 4 or 6 speeds. Now the system runs fast when it is hot and slows down automatically as your home cools down. 

NEW – Invisco is the FIRST to offer infinite speed high efficiency ECM motors. These motors are the best in the industry. 

36 inch 10,600 CFM with four 18 inch ducts, variable speed motor

Latest Product - Our new 6 blade fan. This is 36 inches, over 12,000 CFM!

PERFORMANCE SPECIFICATIONS

Below are the performance specifications for our models. They are all designed for multiple rooms. The model numbers link to detailed specifications. The dash numbers indicate the number of ceiling openings included in the price. Feel free to ask about more or fewer openings that are available for some models. Specifically, the 18 and 20 inch models can be supplied with one opening, 18 inches or 20 inches in diameter or you can order a splitter for multiple rooms. The 24 inch model must have at least 2 18 inch openings or you can order one or two splitters for more roooms. The 30 inch fan needs at least 3 18 inch ducts or 4 16s, dampers, frames and grilles. The 36 inch fan needs at least 4 18 inch ducts.

Prices below are for the 2012 2 speed version.
For the super efficient new 2013 SmartSpeed plus ECM motors add $295 on models from 24 inch up.
For SmartSpeed control for the direct drive 3620 and 4750 and $195.
Note that all SmartSpeed controls have both manual and automatic operation.

Below are systems that include the patent pending Invisco R60 thermal damper assembly for each room.

All the systems with R in the number come complete with the thermally broken  dampers (2 dampers per room) to make each room’s ceiling interface an R38 rated system or better. (The R rating goes up as you add more thickness to the cellulose insulation around the ceiling ducts and dampers).

Speaking of R rating, some users want to meet or exceed LEED specs on their home. Invisco offers motorized dampers for positive closure under all circumstances. Cost per damper adds $100.

IN6000 is our latest innovation. Invisco is the first company to offer the popular 30 inch ceiling fans in a custom made box for your attic. Imagine, 8400 CFM up high in the attic and super quiet. We include 4    14 inch ducts for maximum air flow. But you can add more ducts to more rooms for a low cost per room.

IN10600-4 is another new innovation. We put a 36 inch fan in a box in your attic for one of the most powerful whole house fans ever made. Our custom made box has 4 (four) 18 inch ducts to handle the 10,500 cubic feet per minute air flow. This will suck the ashes from your fireplace if you are not careful. Note that our engineers have designed a box that comes apart into sections that are easy to lift into newer home attics.

Last but not least, our IN14500-4 is the ultimate air mover. This 48 inch fan is a legend. Few homeowners have experienced the power this offers. Now you can put it up in your attic for super low noise. And move a TON of air. We ship this with 20 inch ducts – 4 of them – just barely able to handle the volumes of air. And our custom made box is crafted in sections so it can be lifted through almost any newer attic access.