HVAC & Mechanicals

Model Remodel Show: Balanced Ventilation System

Model-remodel-show-balanced-ventilation.jpg

A simple and affordable balanced ventilation solution for small tight houses

Residential Grow Rooms: 7 Minutes of BS

marijuana-grow-room-science-ventilation-moisture-mold.jpg

Extreme heat and humidity can drive moisture deep into framing cavities which can cause mold, rot, and structural damage

The Right Tin Snip for the Job

Tin-snips-right-left-straight-compound-single-leverage-choose.jpg

Left-, right-, and straight-cutting snips with single- and compound-leverage each have their place on a jobsite

How Deep is Deep Enough to Bury Ducts?

Turns out, ducts buried under insulation actually can work to save energy and eliminate condensation inside the ducts. If you seal and insulate them first

 

Indoor Air Quality (IAQ): 7 Minutes of BS

IAQ-indoor-air-quality-ventilation.png

Three-pronged solution to indoor pollution: Isolate, eliminate, and ventilate

A Simple Balanced Ventilation System

balanced-ventilation-HRV-ERV-supply-fan-range-hood-exhaust.png

Two fans talk to each other to replace stale air with fresh air

 

Make Up Air: 7 Minutes of BS (Building Science w/a Beat)

Make-up-air-building-science-podcast.png

Houses cannot expand and contract with changes in pressure like balloons can. Instead, they need paths for air to balance the pressure

Airtight Dropped Soffit for Ducts, Fans, or Can Lights

airtight-soffit-ductwork-can-lights-kitchen-bath.png

Keep mechanical equipment within the envelope to improve the quality of houses and homes

Moisture Management Design Rule 2: Manage Condensation

Condensation is when moisture in the air hits a cool enough surface to convert the vapor into water.

Mechanical Ventilation: 7 Minutes of BS

BS-Podcast-YT-crop.png

As houses are built tighter, they exchange less air between inside and outside. This saves energy, but the inside air can get stale if you don't have a fan and a plan

9 Ways to Hide a Minisplit

minisplit-in-a-bookcase.png

These mighty-mites can provide heating, cooling, and air-mixing for a well-insulated house, but they look so darned—European. It is hard for many Americans to warm up to them.  

 

Stack Effect: 7 Minutes of BS (#buildingscience)

 BS-Podcast.png

Stack effect is relentless: it is always working, when you’re awake or asleep, even during blackouts. And it feeds on itself.

 

The Right Way (and a wrong one) To Flash a Dryer Vent

Install-a dryer-vent-hood.png

Holes in walls amount to big walls full of holes unless you seal the hole after you make it

Commercial Kitchen Exhaust Fan Basics

roof-mount-exhaust-fan-commercial-kitchen.png

Floor plan dictates hood placement, roof framing dictates fan placement