Brochure

28% UP
CHIMNEY
LOWER EFFICIENCY (Before 1992)
HEAT DISTRIBUTION
400 - 550F
70% TO HOUSE
2%
STANDBY
18% UP
CHIMNEY
HIGHER EFFICIENCY (After 1992)
275 - 450F
80% TO HOUSE
2%
STANDBY
Higher Efficiency Produces
Lower Stack Temperatures
Since the federal government required modern heating
equipment to achieve higher efficiencies in 1992, safely
venting them has become more of a challenge. Today’s
more efficient equipment produces lower flue gas
temperatures than pre-1992 equipment. The low
temperature flue gas provides little natural draft in
chimneys and is more likely to condense into an acidic,
and corrosive, solution. The result can cause property
damage, personal injury, or death. The natural laws of
physics that control this phenomenon pertain to all gas
and oil fired equipment.
Our three major product lines; chimney liners, special
gas vent (AL29-4C
®
* stainless steel), and flexible vent
connectors are all designed to prevent flue gas
condensation or protect against its corrosive effects.
Most of the products Z-FLEX
®
has developed are now
recommended or required by the following national
codes and testing agencies:
Safety Issues
• Patented Triple-Lock™ design for strength .
• Right sized packaging to lower shipping costs.
• Best available materials/alloys.
• 30+ years of manufacturing experience.
• “Immediate” availability (24–72 hr. lead time).
• Listed by Underwriters Laboratories.
Advanced products for maximum performance.
1992 National Fuel Gas Code
• Venting Tables for sizing Chimney Liners and Vent
Connectors when adding or replacing equipment.
• Insulated Connectors required in attics and other
“cold” spaces.
1997 NFPA 31
“Installation of Oil Burning Equipment”
• Venting Tables for sizing Chimney Liners.
International Approval Services (formerly AGA)
• June, 1996 – IAS requires all Category III gas boilers and
furnaces to use a UL 1738 approved vent system
(like our Z-VENT
®
).
• July, 1998 – IAS requires all Category III gas
residential unit heaters to use a UL 1738 approved
vent system (like our Z-VENT
®
).
Advancing The Industry
9/10