jharrison
(John Harrison, CMI)
August 13, 2011, 4:48pm
1
Can anyone tell me why these lines have this section installed in it.
These are the Fresh air and exhaust lines to the furnace.
kwood
(KEVIN WOOD, CMI)
August 13, 2011, 5:03pm
2
To muffle the sound of most lennox pulse furnaces.
jharrison
(John Harrison, CMI)
August 13, 2011, 5:43pm
4
So no problem with the installation then??
Thanks guys.
roconnor
(Robert J. OConnor)
August 14, 2011, 4:18pm
6
If thats the venting for a Lennox G14 or GSR14 series pulse furnace, there have been a history of problems with cracked heat exchangers. Those need evaluation by a specialist.
http://www.inspectapedia.com/heat/lennox1.htm
.
jharrison
(John Harrison, CMI)
August 14, 2011, 5:25pm
7
roconnor:
If thats the venting for a Lennox G14 or GSR14 series pulse furnace, there have been a history of problems with cracked heat exchangers. Those need evaluation by a specialist.
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.
I was unable to verify the date aside from a sharpie marking dating for March of 1983.
Due to a low output of heat from the registers. A temp diff of 6 degrees on both heat and cool cycles, and an unknown last service date.
I recommended a full system evaluation by a licensed HVAC tech before further pursuit of purchase.
dandersen
(David Andersen, TN HI# 40)
August 15, 2011, 2:20pm
8
You can get a 6° temperature difference just because the duct passes through the attic or crawlspace.
I don’t think anything was working.
mlarson
(Michael Larson, WI Lic. # 1672-106)
August 15, 2011, 10:55pm
9
jharrison:
I was unable to verify the date aside from a sharpie marking dating for March of 1983.
Due to a low output of heat from the registers. A temp diff of 6 degrees on both heat and cool cycles, and an unknown last service date.
I recommended a full system evaluation by a licensed HVAC tech before further pursuit of purchase.
Lennox Industries Inc., the maker of Lennox Pulse furnaces, announced it has set up a free program to inspect Lennox furnaces installed from 1982 to 1989 to check for carbon monoxide leaks or as the company stated: "because of “increased instances of corrosion in some Pulse furnace heat exchangers in units installed before 1990.”
Please inform your client as these can be a very real safety hazard.
More info:
http://www.inspectapedia.com/heat/lennox1.htm