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Question DetailsAsked on 9/15/2015

venting a furnance

The contractor said he couldn't vent the new furnance through the chimeny because it wasn't 'lined' so need to vent through the cellar wall. is this right?

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2 Answers

1
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Yes, that or have the chimeny lined. New higher efficiency gas furnaces, all require a different type of venting. You'll love the savings on your gas bill!

Source: www.bayareacool.com

Answered 5 years ago by BayAreaAC

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The vent for a gas or oil appliance has to be a certain size, depending on the Btu output of the unit and whether or not it has a power exhaust vent or not. An old wood-burning chimney is almost guaranteed to be too large for pretty much any modern appliance.


Commonly quite a bit cheaper, if a new lining has to be put in a flue or fireplace (or existing fllue size changed), to run the vent out the nearest wall directly to the outside, especially with the higher-efficiency appliances which now come with power venting as a matter of course.

Answered 5 years ago by LCD




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