Direct the heat toward the feet

Built tight and verify. And then ventilate.

Floor plan dictates hood placement, roof framing dictates fan placement

Everything there is to know (well, almost) about blower door testing with a few engineer-y jokes along the way.

To suck air from under a slab, the slab must be airtight

A tight path to the outdoors keeps the indoors fresh and you can call it a day because you’re one step closer to the Energy Star.

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A super efficient heat pump with a GWP of 1

Like kitchen & bath remodels, it involves plumbing, ventilation, electrical upgrades, waterproofing, and building inspectors

You can dig in to the roof without adding more insulation, but you can't dig far

Range hoods are a key player in the kitchen mechanical system: If they are not tied to a makeup air system, they make their own.

Be economical, direct, and don't get kinky.

Yes. Brett Singer, a scientist with the Indoor Environmental Group at Berkeley Lab explains how pollutants get into the air from cooking and his group's research to clear the way for a rating system for range hoods. 

The nuts and bolts of ducts and volts

Soffits should be tight boxes hidden in your ceiling.

But some buckets are more relative

Tightening an old house or building a tight new one means that you can't leave ventilation to random leaks anymore. You have to control it.

New energy codes are coming (very) soon; many states are jumping straight to the most aggressive one