International Association of Certified Home Inspectors
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| HVAC Topics include heating, venting, and air conditioning. |
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#1
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Any verbiage on requirements for vent screens? Manufacturer recommendations?
Thanks in advance. |
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#2
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A combustion air intake must be provided
with an elbow opening downward. The screen provided with the furnace must be installed in the elbow to prevent entry of debris or creatures. |
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#3
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Please Note:
Gary Reecher is a non-member guest and is in no way affiliated with InterNACHI or its members.
I have found it best to use only 1 inch hardware cloth cut and pressed into the fittings.
Plastic drain plugs have too much restriction on venting and intake. This causes improper combustion and high levels of CO production. One manufacturer provides these drain plugs and I have encountered more combustion problems with that make than any other. |
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