heat pump news

May. 29, 2008 – Low-energy and passive houses are superinsulated and air-tight buildings where the space heating demand is considerably lower than that of buildings constructed in accordance with common buildings codes. Due to the low space heating demand, the annual heating demand for domestic hot water (DHW) typically constitutes 50 to 85% of the […]

Jun. 25, 2008 – For air-to-air heat pumps installed in second and holiday homes in Denmark (more than 200.000 properties) the Danish Electricity Saving Trust has prepared the introduction of a new Energy Saving Label. Six criteria must be fulfilled to qualify for this recommended Energy Saving Label. Source: ScanRef

Jul. 07, 2008 – As of February 2008 the test laboratory for heat pumps at ILK Dresden, Germany is accredited according to DIN EN ISO/IEC 17025. That will help to reduce long waiting periods for heat pump testing as recently complained by heat pump manufacturers. Accreditation was made for testing of water-to-water and brine-to-water heat […]

Jul. 15, 2008 – Geothermal systems operate for 1/2 to 1/4 the cost of most other heating and cooling systems! In January 2006 the U.S. Federal government changed the minimum efficiency for air conditioners to 13 SEER from the previous minimum requirement of 10 SEER. Geothermal systems are up to twice the minimum required efficiency! […]

Aug. 12, 2008 – The U.S. Department of Energy (DOE) will launch a new ENERGY STAR® program for residential water heaters, effective Jan. 1, 2009. It covers gas-fired storage, gas-fired tankless, heat pump and solar water heaters. The program for gas-fired storage water heaters will take effect in two phases. For the first 19 months […]

Jul. 29, 2008 – The German manufacturer Roth Werke GmbH offers a newly developed solar-assisted GSHP system called “Solargeo-Energiesystem”. According to Roth this system provides an efficiency increase of up to 25 percent compared to commonly used GSHP installations. The Solargeo-Energiesystem combines a solar collector, a brine-to-water heat pump and compact geothermal collector packages (Registerstation) […]

Sep. 17, 2008 – The European Parliaments Industry Committee backed EU legislation that targets extensive deployment of renewable technologies, including all types of heat pumps. New rules could also promote, or oblige, the use of renewable technologies in new and existing buildings. The European Parliaments Committee on Industry, Research and Energy (ITRE) voted on 11 […]

Jun. 27, 2007 – Based on the coabsorbent cycles, recently introduced by the author, a particular new technology can be developed for extremely efficient and feasible heat pumping applications. The paper presents model results of residential and district ammonia/water heating applications for coabsorbent hybrid and absorption heat pumps, supplied by different winter and summer heating […]

Jun. 27, 2007 – Conventional thermally powered water heaters are 80 to 95% efficient. The new thermally powered heat pump (TPHP) reported herein is over 140% efficient. In addition, the cold end of this TPHP produces useful chilling. The amount of energy-free chilling is equal to the amount of heat pumping. The combination of the […]