In small bathrooms, there may not be enough floor area for adequate radiant heating. An experienced hvac sub describes the products and techniques that can turn the walls and ceilings — and even some fixtures — into radiant heat sources. More
Most furnaces and boilers more than five years old can benefit from modifications that will improve performance. A seasoned hvac contractor explains which upgrades will be most cost-effective for gas- and oil-fired systems. More
Depending on availability, proprietary gypsum-based thin slabs can be expensive. A hydronic engineer describes an innovative, cost-effective approach to pouring a radiant slab. More
The design of hydronic heat distribution piping affects overall comfort levels,... More
Capturing the earth’s energy with underground heat-exchange loops can cut heating and cooling costs — if it’s done right. An hvac contractor tells what he’s learned from 15 years of installing geothermal heat pumps. More
In a tight house, kitchen and bath exhaust fans can interfere with the natural draft of chimney-vented heating equipment. An energy expert explains how power vents and combustion air supply ducts can solve the problem. More
A heating engineer with a number of radiant slabs under his belt offers practical guidelines for successful slab-on-grade installations. More
A veteran heating-system designer offers some pointers based on his experience in the field. More
Jon Eakes reviews the basics of indoor humidity, explains what makes a heating system healthy and comfortable, and pre- views a new gizmo on the Canadian market that promises to change the way we think about electric heat: the silicone- controlled r More
Experts disagree on the extent to which corrosion in heating systems can be blamed on a strange phenomenon called oxygen diffusion. Paul Hanke examines this growing controversy in the plastic-pipe industry. More
