dbalcom Posted March 22, 2006 Report Share Posted March 22, 2006 I recently inspected a 4 year old colonial with light yellow vinyl siding and with an oil-fired side vent boiler. the vent protruded about 6 inches. the siding below vent was white. siding nearby was a mix of yellow to white blotches. has anyone else seen this. can it be corrected? damage extends 20 feet away. vinyl was not distorted, so I don't think heat is an issue. could it be chemical?? I thought vinyl color was solid, not topical?? vent placement appeared correct. no vegetation to affect flow - just an open wall. any suggestions out there?? Link to comment Share on other sites More sharing options...
Darren Posted March 23, 2006 Report Share Posted March 23, 2006 I have never seen a 'direct vent' system on an oil fired appliance. Did the manufacture directions indicate this was possible? Darren www.aboutthehouseinspections.com Link to comment Share on other sites More sharing options...
Neal Lewis Posted March 23, 2006 Report Share Posted March 23, 2006 Field Controls and Tjerlund are manufacturers of aftermarket conversion power venters for oil fired equipment. I don't know if the heating system installation manual would either allow it disallow it. The discoloration of the siding, I have no idea about. Link to comment Share on other sites More sharing options...
hausdok Posted March 23, 2006 Report Share Posted March 23, 2006 Oil furnaces typically put out a lot of yellow sulfur residue. Could it be something like that? OT - OF!!! M. Link to comment Share on other sites More sharing options...
Bill Kibbel Posted March 23, 2006 Report Share Posted March 23, 2006 I have never seen a 'direct vent' system on an oil fired appliance.Did the manufacture directions indicate this was possible? I'm surprised. I've seen hundreds in both PA & NJ. SWG power vents (by Field Controls) are listed and recommended by the top manufacturers of oil-fired heating equipment. Peerless, New Yorker and Crown have direct vent oil-fired boilers. Bock has an oil-fired direct vent water heater. I don't usually inspect buildings clad in Tupperware, but discoloration from a sidewall vent doesn't surprise me. I wouldn't think it wouldn't be reversible. Link to comment Share on other sites More sharing options...
Darren Posted March 23, 2006 Report Share Posted March 23, 2006 Bill & Neal, Very interesting, in my 9 years of inspections, I have never seen one. Question, are they usually installed on newer homes or are they part of a replacement system? Darren Link to comment Share on other sites More sharing options...
Neal Lewis Posted March 23, 2006 Report Share Posted March 23, 2006 Darren, I've only seen a handful and they were on new construction, not replacement systems. One of those houses was out your way; I inspected it twice. I also saw one where the power venter was used for oil but only rated for gas, according to manual left on the furnace. You may have seen this same type of device to modify a venting system when replacing the Plexvent/Ultravent stuff. Link to comment Share on other sites More sharing options...
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