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2. Heating seasonal performance factor - Wikipedia

   en.wikipedia.org/wiki/Heating_seasonal...

   Heating seasonal performance factor (HSPF) is a term used in the heating and cooling industry. HSPF is specifically used to measure the efficiency of air source heat pumps. HSPF is defined as the ratio of heat output (measured in BTUs) over the heating season to electricity used (measured in watt-hours). [1] [2] It therefore has units of BTU ...

3. Ariston Thermo - Wikipedia

   en.wikipedia.org/wiki/Ariston_Thermo

   Ariston Thermo acquired in 2011 Cipag SA and Domotec AG, leaders in Switzerland for the production, distribution and maintenance of water heating systems. [ 6 ] 2013 saw the acquisition of DhE, an Italian company specialised in heating elements for commercial and industrial applications, and the set up of a joint venture for the production and ...

4. Heat pump - Wikipedia

   en.wikipedia.org/wiki/Heat_pump

   Pumps with ratings of 18 SEER or above are considered highly efficient. The highest efficiency heat pumps manufactured are up to 24 SEER. [37] Heating seasonal performance factor (in the US) or Seasonal Performance Factor (in Europe) are ratings of heating performance. The SPF is Total heat output per annum / Total electricity consumed per ...

5. List of companies of Switzerland - Wikipedia

   en.wikipedia.org/wiki/List_of_companies_of...

   Transnational consumer goods conglomerate and the largest food and beverage company in the world. The firm has more than 8,000 brands, including Gerber, Carnation, and Lean Cuisine. 112 Zurich Insurance Group: $67,245 52,473 Zürich-based full line insurance and financial services company operating in more than 170 countries. 169 Hoffmann-La Roche

6. Seasonal energy efficiency ratio - Wikipedia

   en.wikipedia.org/wiki/Seasonal_energy_efficiency...

   A heat pump with a higher SEER rating for cooling mode would also usually be more efficient in heating mode, rated using HSPF. When operated in heating mode, a heat pump is typically more efficient than an electrical resistance heater. This is because a space heater can convert only the input electrical energy directly to output heat energy ...

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