LIQUIDATION EVENT – Prices Below Cost!

Preparing for New 2026 Arrivals

Get ready for our 2026 arrivals with unbeatable deals! We’re clearing out inventory with sale prices below wholesale cost. Don’t miss your chance to grab premium products at rock-bottom prices.

Hurry – Sale Ends Thursday, 2/5!

This 30 Degree Elbow Kit 8" is used with 8" Chimney Extensions - Insulated - 24", 36" and 48". This product meets specifications for all HE, GH, and BHS model furnaces. (NOTE: This 8" size will NOT fit GX model furnaces.)

Also NOTE: A "Chimney Extension Adapter - 8"" is required to attach any extension to any HE, GH, or BHS model furnace.

All Chimney extensions are shown by their INSIDE diameter and length. The outside diameter is always 2 inches wider. Accordingly, this product has an OD of 10".

NEVER use an uninsulated chimney extension. Outdoor wood boiler exhaust contains high amounts of steam from the wood fuel, and this steam must exit the furnace without condensing on the chimney wall. If the chimney wall is uninsulated, this steam will condense on the chimney wall, and highly acidic moisture will ruin most boilers in less than a few months.

Outdoor Boiler agree that only triple wall insulated chimney extensions should be used. Our products have a perfect safety record of protecting outdoor wood boilers and providing years of service.

SuperPro Chimney features 304-alloy stainless steel for both its inner and outer liner, and mineral wool solid pack insulation. This insulation is formulated for optimum performance, it provides a thermal delay that resists and contains surges of heat, keeping the outer liner cooler.