Venting Appliances Instruction

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Exterior Air for a Masonry Wood-Burning Fireplace

What are the code requirements for supplying combustion air to a masonry fireplace? More

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Commissioning a Ventilation System

Commissioning is not a word we hear much in residential construction, but it's a... More

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Rookie Builder Mistakes - Part 2 - HVAC

Let’s start with some obvious mistakes that aren’t even visible to most builders... More

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A Tale of Two Hazards

There are no clear policies for the two biggest IAQ hazards - carbon monoxide and... More

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HVAC Systems

A 20 minute version of my HVAC presentation to the AIA Austin Chapter in August 2013. More

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What's That Smell?

If there are bad odors in the HVAC system of a newly-built home, they are likely... More

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Q&A: Closing a House for the Winter

I have customers who wants me to build a log home that will be used seasonally, for about two months of the summer and another two months in the winter. During the rest of the year they want to leave the house closed up and unheated. We're at the edge of the Rocky Mountain Front Range in eastern British Columbia, and winter temperatures often fall to 20F. I've discouraged the clients from installing a hydronic heating system because of the difficulty of draining it twice a year (draining the domestic water will be headache enough), but what other potential problems should I be thinking about? I'm concerned that the radical swings in temperature could damage interior finishes More

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In the News

Sealed crawlspace testing sheds new light on energy performance ; Advanta shuts... More

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Will Radiant Heat Melt a Wax Ring?

Q: My company has been contracted to build a new bathroom. Plans include a tile floor installed over a radiant-heated slab. Will the heat generated by the hydronic tubing embedded in the slab cause problems with the wax seal between the toilet and the dra More

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Diagnosing a Moisture Problem in a New Post and Beam House

If condensation is appearing on windows, green timbers might be contributing to... More

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