Early Holiday Savings Are Here! 

25% OFF ALL Products!

Get a head start on the holiday season with our Early Holiday Savings Event! Enjoy a massive 25% discount on every product storewide — no exclusions, no codes needed.

Whether you're replacing essential parts, upgrading your system, or stocking up for the winter, now is the perfect time to save big. But hurry — inventory is limited and deals won’t last long!

This Early Holiday Sale ends December 4!

Chimney Adapter - This product enables the installation of a chimney extension on a traditional outdoor wood boiler with an 8" chimney. This product is compatible with MANY Hawken and other brand model furnaces as follows:

Hawken model furnaces: HE-1100, HE-2100, HE-750, HE-1000, HE-2000, GH-750, GH-1000, GH-2000, GH-3000, GH-4000, GH-5000, BHS-100, and BHS-200. 

Other Model Furnaces: Please confirm the ID ("inside diameter") of your chimney is 8". If so, this adapter will fit.

Contact Outdoor Boiler Technical Support with any questions at the following link HERE.

This product will ship in up to 7 business days from the date of order.