The first step in evaluating a building’s energy use involves an energy audit. This consists of various home performance tests that identify opportunities to reduce energy use. More HVAC contractors are starting to offer this service because of its direct impact on a home’s heating-cooling costs.
As HVAC products get more and more efficient, the logical question is what level will they top off at? The laws of physics can limit the efficiency levels of air-source heating and cooling equipment. The laws of economics also come into play, as the cost for each incremental escalation in efficiency can substantially increase the cost of the equipment.
The U.S. Department of Energy (DOE) and the U.S. Department of Education have joined with the National Science Teachers Association to launch America’s Home Energy Education Challenge, a new energy education initiative. The goal is to motivate students across the country to learn about energy efficiency and help their families save money.
The “Implementation of National Consensus Appliance Agreements Act of 2011” (S. 398) bill, recently introduced in the U.S. Senate, would enact into law several consensus agreements that would set new federal efficiency standards for residential furnaces in two regions, for central air conditioners in three regions, and for central heat pumps in one, national region.
CityCenter, an $8.5 billion resort development on the Las Vegas Strip, may be billed as the largest and most elaborate commercial construction project in U.S. history, but the mechanical systems that manage the indoor environment were chosen based on consistency and simplicity.
New Frontiers Natural Marketplace decided to test the claims of refrigeration equipment manufacturer Muller Industries by having three of its 3C hybrid condensers installed at the store in San Luis Obispo, Calif.
In a survey of more than 1,500 homeowners conducted by Emerson Climate Technologies Inc. late last year, a high percentage of consumers showed continued interest in potential energy savings as a major purchase criterion when replacing an existing HVAC system.
Tall ceilings can be both a builder’s dream and an HVAC contractor’s nightmare. The introduction of air movement by means of large-diameter, low-speed fans can provide the necessary comfort, further optimize HVAC system effectiveness, and save money on both energy use and building supplies.
On Jan. 28, the Building Performance Institute (BPI) released a proposed new standard (BSR/BPI 101-201x, Home Energy Auditing Standard) for public comment. The Air Conditioning Contractors of America (ACCA) reviewed BPI’s proposed standard and believes that a number of significant flaws need to be addressed and a number of passages need to be improved.
The need for energy efficiency and the desire for
intelligent energy efficiency have created a hunger for data. This trend
started 10 years ago (or more) in the building controls industry and is now
being seen in the refrigeration controls sector.