Woolly Bully kettle blanket

[EricV.]

Needed? Absolutely not... but fuel efficiency is $$$

Woolly Bully Insulated Grill Cover

A revolutionary grill accessory that turns the world’s bestselling Weber kettle into a high tech cooking machine. With advanced fabrics and state-of-the-art manufacturing, Woolly Bully lets you keep your existing charcoal grill and achieve all-weather temperature control only attainable with...

woollybully.com

 

[timothy]

I don't see any pics of it cradled in a slide-aside or lid bail.
Looks like it would be a tight fit.

 

[EricV.]

In all there testing it supposedly reduces fuel consumption for a long-and-slow cook by about a third, holding temperature constant of course.
See comparison below:

 

[Chris Allingham]

There's an outfit doing something similar for the WSM. They sent me one for review about five years ago and I made a video about it.

BBQoozie

BBQ and Smoker Heat Shield - BBQoozie™

www.heatshieldproducts.com

 

[Timothy F. Lewis]

There's an outfit doing something similar for the WSM. They sent me one for review about five years ago and I made a video about it.

BBQoozie

BBQ and Smoker Heat Shield - BBQoozie™

www.heatshieldproducts.com

And after you had done all the work you were kinds enough to offer it to me!
The thing is shockingly effective here in the colder weather! It’s a great piece on the arsenal! I have not used it in a snowstorm but, I have no doubts about its efficacy! I have thanked you many times when it’s cold out and I’m doing a brisket!
I would think that the top cover would do a lot on a kettle, I wish them luck!