2026 Kickoff Sale EXTENDED! 25% OFF

Start the year strong and don’t miss your last chance to save 25% storewide! Due to popular demand, our 2026 Kickoff Sale has been extended—giving you more time to grab the products you need at unbeatable prices.

Whether you’re upgrading your system, preparing for the season ahead, or restocking essential supplies, now is the perfect time to save big.

Hurry—this extended offer ends Monday, January 19!

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.