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Makeup Air for Kitchen Range Hoods

Learn more about passive and active strategies for preventing exhaust ventilation... More

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Ductwork and Combustion Vents: Dangerous Interactions

A home performance contractor and energy auditor investigates trouble in the... More

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How a New Roof Led to a Family's Carbon Monoxide Poisoning

Though at first the culprit appeared to be the furnace, it turned out that the... More

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Planning Ahead for Combustion Air

When tucking a fuel-burning appliance into a small utility room, provide... More

Installing a Mini-Split Air-Source Heat Pump

JLC goes on site with ReVision Energy to see master plumbers Dave Ragsdale and... More

Heat Pumps, Heat Pumps, and More Heat Pumps

Heat pumps were the hot topic at last week’s Building Energy 14 conference, hosted... More

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Slideshow: Brooklyn Passive House Mechanicals

Here’s a sneak peek at the Mitsubishi ducted mini-split heat pump and Zehnder energy recovery ventilator roughed-in at a Brooklyn, New York, passive house retrofit we’ve been following. More

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Retrofitting a Heat-Recovery Ventilator

The challenges are finding a good place for the unit and installing the ductwork without butchering interior finishes. More

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Installing an Efficient Noncondensing Boiler

Tax credits are great, but does your client really need a condensing boiler? More

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Retrofitting a High-Tech Heating System

This design uses a gas boiler and solar thermal collectors as heat inputs, and... More

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