DuraVent Ventinox Rigid Factory-Built Lining System - Manual (Page 9)

ProFoil ceramic blanket
VENTINOX LINING SYSTEM - 9
METHOD #1:THERMIX
BENEFITS AT-A-GLANCE:
• No Health Risks: Non-fibrous, non-toxic, inert and
manufactured under stringent quality controls. Safe
to the installer and homeowner, today and into the
future.
• Adds Safety: Chimneys insulated by TherMix reduce
creosote build-up, the chance of a chimney fire is
minimized and its dangers are decreased.
• Superior Performance: Featuring high “R” values,
flue surface temperatures are balanced and react
quickly to firing cycles of heating units. Aiding in
optimal heating efficiencies.
• Durable & Tested: When properly installed, TherMix
does not leak, separate or deteriorate. Field tested
since 1984.
• Reinforces: Insulates the liner & flue gas while
providing a strong bond for the masonry chimney.
THERMIX: THE “THERMAL
BRIDGE” BETWEEN
FLEXIBLE CHIMNEY
LINERS AND MASONRY
TherMix lowers temperatures on liners during over firing
or chimney fires: Allows heat to be slowly absorbed into
the entire mass of a chimney, where it is safely dissipated
over a large surface area.
TherMix maintains higher temperatures on liners
when flue gas temperatures are low: Maintaining flue gas
temperatures above dew point, (~128°F), is essential
to avoid condensation. The insulating mass of TherMix
retains the maximum available heat close to the liner:
the flue stays warm for a longer period of time after the
appliance shuts down. With oil and gas appliances,
keeping the flue warmer between firing cycles greatly
reduces the possibility of momentary flue gas spillage
which occur at the start of the next cycle. With wood
burning applications, warmer flues help eliminate back
puffing and other draft related problems.
TherMix minimizes fluctuations of liner surface
temperatures during heating cycles. This is critical when
draft must be established quickly each time an appliance
fires up and when minimizing condensation within the
entire height of the flue is important.
NOTE: To comply with the specifications
zero clearance solid flue installation, a
minimum thickness of 1” of TherMix must
be installed between a listed stainless steel
liner and a 4” thick masonry chimney wall.
There is no change in consistency of TherMix over
time. Even after exposure to many high temperature
tests, the structural integrity, chemical composition, and
insulating qualities remained consistent over time, every
time.
•
TherMix insulated chimneys can be used right after
the installation is complete, as long as flue gas
temperatures do not exceed 1000°F during the first
48 hours of actual use. Please note that drying and
curing are two separate processes:
• Curing or hardening of TherMix takes place over
a 28-day period, with 65% to 75% of this process
occurring the first week.
• Drying time depends on the thickness TherMix, the
permeability of the chimney, and weather conditions.
The drying process :
• Curing or hardening of TherMix takes place over
a 28-day period,with 65% to 75% of this process
occuring the first week.
• Drying time depends on the thickness TherMix, the
permeability of the chimney, and weather conditions.
The drying process is enhanced and completed over
time by using the heating appliance.