The final rule from the U.S. Department of Energy, issued recently, requires newly manufactured indoor residential gas furnaces to be at least 95% efficient starting in December 2028, meaning furnaces made after then will have to be condensing models.
The Hydraulic Institute's Energy Rating program provides energy-efficiency program administrators with a way to encourage adoption of more efficient technology.
A Google search for terms like “furnace” or “heat pump” will yield information on how the system works and its efficiency, plus side-by-side comparisons and, if applicable, available financial incentives that can defray the consumer’s costs.
Budderfly will leverage Fujitsu’s Airstage variable refrigerant flow (VRF) systems as the core component for its ultra-high-performance (UHP) HVAC architecture.
The selected projects, which have not been finalized, would be the first awards coming out of DOE’s use of the Defense Production Act (DPA) to increase domestic production of five clean energy technologies, including electric heat pumps.
The home now has a 3.9 kW solar array that offsets nearly 100% of the System M and grid power supplied from the clean-sourced ConEd program — meaning that the house has zero emission heating, cooling, and hot water.
The NPF Hydro-furnace, Navien Inc.'s first HVAC product, claims an annual fuel utilization efficiency of 97% and can be outfitted to burn either natural gas or liquid propane.
The DCC boiler eliminates greenhouse gas emissions, providing a clean and eco-friendly source of steam for various industries and applications, Jericho Energy Ventures said.