W415-1013 / C / 11.19.13
42
EN
Separate chimneys are recommended when connecting the HMF150/200 to a pre existing oil furnace. If a
single chimney is used in this application it must be 7" (178mm) in diameter and approved for use with wood
burning appliances (2100°F) (1149°C), UL103HT (US), ULC 5629 (Canada).
○
The exhaust pipe from the wood
fl
ue must connect to the chimney below the junction of the oil
exhaust to the common chimney.
6.4.1 CONTROLLING DRAFT
H3.57A
UNDER NO CONDITIONS MAY A SOLID FUEL BURNING APPLIANCE SHARE A CHIMNEY THAT
VENTS NATURAL GAS OR PROPANE EXHAUST.
DO NOT USE MAKESHIFT COMPROMISES DURING INSTALLATION. DO NOT BLOCK OR RESTRICT
AIR. DO NOT IMPEDE AIR MOVEMENT ZONES MARKED “CLEARANCE TO COMBUSTIBLES”.
ALL PLENUM DUCTING AND VENTING INSTALLATION MUST CONFORM WITH CAN/CSA B365-
10, CSA B139-09, AND NFPA 211. ALWAYS CHECK LOCAL BUILDING AND FIRE CODES , AND
AUTHORITIES HAVING JURISDICTION.
THE WOOD FURNACE SECTION CAN OPERATE USING A MINIMUM 6” (152mm) FLUE PIPE, BUT WE
RECOMMEND THAT THE FLUE SIZE BE SET AT A MINIMUM OF 7” (178mm) DIAMETER WHERE THE
FURNACE IS TO BE SET UP AS (OR IN CONSIDERATION TO A FUTURE RETRO FIT TO A WOOD/OIL
OR WOOD/OIL/ELECTRIC COMBINATION.
USE CHIMNEY CERTIFIED TO 2100°F (1149°C) FOR WOOD BURNING APPLIANCES, LISTED AS
UL103HT(USA), ULCS629 (CANADA) MINIMUM 6” (152mm) DIAMETER LISTED RESIDENTIAL
CHIMNEY. SEE AND FOLLOW CHIMNEY MANUFACTURES INSTRUCTIONS.
THE FURNACE CAN ALSO BE CONNECTED TO A MASONRY CONSTRUCTED CHIMNEY IN
COMPLIANCE WITH LOCAL BUILDING CODES. THE MASONRY CHIMNEY MUST BE FULLY LINED
WITH 8” X 8” (203mm X 203mm) SQUARE VITRIFIED CLAY TILES OR WITH A STAINLESS STEEL
LINER CONFORMING WITH ULC-5640M (CANADA) OR UL-1777 (USA). THE CHIMNEY OR CHIMNEY
LINER MUST BE CONNECTED TO THE APPLIANCE USING AN APPROVED VENT CONNECTOR
SYSTEM (STOVE PIPE IS SUITABLE PROVIDED APPROPRIATE CLEARANCES ARE MAINTAINED).
CHIMNEY DRAFT GREATER THAN -0.06” W.C. (-15 Pa) MAY CAUSE AN UNCONTROLLABLE FIRE
AND DAMAGE THE FURNACE.
Separate chimneys are required when connecting the HMF150/200 to a natural gas or propane furnace.
6.4 FLUE CONFIGURATION FOR "ADD ON" FURNACE CONFIGURATION
•
Use of inclined manual dampers is forbidden.
•
Barometric dampers shall not be used for any wood furnace venting other than wood/oil combination
which share a common chimney. In this case, the barometric damper should be installed to maintain an
operating draft between -0.04" and -0.06" W.C. (-10 Pa and -15 Pa), when operating the wood furnace.
H3.78
THE USE OF A BAROMETRIC DAMPER ON A WOOD OR WOOD/OIL APPLIANCE CAN HAVE THE
FOLLOWING CONSEQUENCES:
1. DILLUTION AIR ENTERING THROUGH THE BAROMETRIC DAMPER MAY PREMATURELY
COOL EXHAUST PRODUCTS CREATING EXCESS CREOSOTE DEPOSITS INSIDE THE
CHIMNEY LEADING TO A CHIMNEY FIRE HAZARD.
2. IF A CHIMNEY FIRE OCCURS, THE BYPASS DAMPER CAN PULL OPEN UNDER DRAFT
PRESSURE AND FORCE FEED AND INTENSIFY THE FIRE. STAY VIGILANT FOR RAPIDLY
DEPOSITING CREOSOTE WHEN RUNNING A VENT SYSTEM WITH A BAROMETRIC DAMPER.
