Model RIS is a type "A" factory-built chimney suitable for venting negative or neutral draft (non-pressurized) appliances including boilers, building heating equipment, fireplaces and stoves. RIS has been designed, tested, and listed to vent large wood burning fireplaces and to extend masonry chimneys.

Model RIS insulated stainless steel chimney

Model RIS insulated stainless steel chimney is suitable for use on appliances that burn wood, oil, coal, natural gas and charcoal and is available in 10” through 24” diameters.


Length (RIL)

Adjustable Length (RILA)

Locking Band (RSLB; RGLB)


Roof Brace (RRB)

Chimney Top Damper (RCTD)

Tees and elbows

Insulated Tee (RIT)

Elbow (RIE15; RIE30; RIE45)


Wall Band (RWB)

Wall support (RWS)

Anchor Plate (RAP)

Anchor Plate Damper (RAPD; RAPD2)

Roof Support (RSR)

Offset Support (ROS)


NEW Rain Cap Base (RRCB)

Rain Cap (RRC)


Vented Flashing (RVF, RVFA, RVFB)

Roof Flashing (RF; RFA; RFB)

Metal Roof Flashings (RMFA; RMFB; RMFC)


Radiation Shield (RRS)

NEW Components for Renaissance Fireplaces

NEW RIS 12" Radiation Shield (12RRS2)

NEW Canadian Vented Flashing for Rumford 1500 Fireplace (RCVF)

NEW Flexible Radiation Shield Tube (12RRSF)

NEW Insulated Angled Wall Radiation Shields (RWRSI30 & RWRSI45)