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Posted by HeatPro on July 18, 2006 at 13:23:28:
In Reply to: Re: Is AL294- c For Air intake necessary posted by Bernie on July 18, 2006 at 12:44:04:
: Thanks for your time but it seems like a huge waste of money for a pipe providing cold air.
As the instructions show the use of a screened elbow within the cabinet of the boiler as an air intake, seems they allow not using an air intake pipe at all. That would negate the sale of expensive tubing in itself. However, some would gripe that Burnham didn't provide a way of sealed combustion, which they do by showing the use of intake piping. Sealed combustion assures that heated air inside the home isn't being used - for maximum energy savings.
However, a long length of intake tubing in the winter will often sweat on the outside and rust out unless it is as good as stainless steel. Also, it is possible for a boiler to backfire into the home when insufficiently serviced. A plastic tube could shatter from the pop or melt from the heat. Burnham's been 'burnt' many times from legal liability. Suggesting the safest way to use a combustion device is very smart - though it tends to anger people looking to save the most money in a lifetime.