by John Krigger | Jul 29, 2022 | Duct Air Sealing, HVAC: Air Conditioners and Heat Pumps
Click the image to see the laminated double-sided chart. Urgent comfort problems drive AC service calls. HVAC technicians should upsell service calls to include a thorough energy-efficiency tune-up. Customers appreciate the extra benefits of electricity-cost savings...
by John Krigger | Jul 22, 2022 | Uncategorized
Multifamily buildings usually have relatively tighter enclosures than single-family homes. They also have less exterior surface area per unit of floor area. Furthermore, the multifamily-building exterior is often quite weather-tight to resist rain and wind....
by srmi | Jul 3, 2022 | Energy News
What is draft? Draft is important to combustion efficiency and safe combustion. If draft isn’t adequate, chimneys can backdraft or spill. We measure draft between between two places in a combustion heating system. For example, we measure draft between the a...
by srmi | Aug 10, 2021 | Energy News
Lawrence Berkeley National Lab (LBNL) scientists, led by Max Sherman and Iain Walker, are investigating whole-house ventilation options to support California’s Zero Net Energy Homes initiative. This research project is called Smart Ventilation for Advanced...
by srmi | Jul 5, 2021 | Energy Efficient Buildings
Sliding glass door heat flow A sliding glass door’s large expanse of glass transmits a lot heat out of the home in the winter and into the home in summer. This heat flow takes three forms: heat conducts directly through the glass in winter, solar heat transmits...
by srmi | Jun 2, 2017 | Energy News
Attic vents and attic venting are the most familiar and reliable roof venting option. That was the subject of part 1 of this post. But they may not work depending on the building’s design. Features like sloping ceilings and cathedrals may dictate an unvented...
by srmi | May 26, 2017 | Energy Efficient Buildings
Attic vents and roof venting serve a variety of purposes, depending on roof design and climate. These purposes include preventing ice damming, drying building materials, and controlling solar heat gain. In cold climates, we want to avoid ice damming by keeping the...
by srmi | May 19, 2017 | Energy News
Spring has arrived and Summer is just around the corner. If your heating system is in need of major repair or replacement, this is the time for you to get that done. If your furnace vents into an unlined masonry chimney, then you should install a chimney liner. If...
by srmi | Mar 2, 2017 | Energy News
Window manufacturers offer a variety of window frames for the variety of different new and retrofit window installations. Choose the right window frame. In most types of window installation, exterior window trim is an unnecessary and expensive extra to be avoided....
by srmi | Dec 29, 2016 | Energy News
My complements to the European high-performance window manufacturers for providing built-in sills for their windows. I hope that North American high-performance window manufacturers soon provide built-in sills. The built-in sills, along with block-frame window...
