HEAT PUMP BASED SPA HEATING AND COOLING METHOD AND APPARATUS

A method of heating and cooling spa water comprising the steps of providing a heat pump operable in heating and cooling modes in a spa water circulation path, providing an electrical resistance heater in the circulation path, operating the electrical resistance heater concurrently with the heat pump...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	GOODJOHN, ANDREW, J, NICHOLSON, LARRY
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ARTIFICIAL RESPIRATION BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSESOR SPECIFIC PARTS OF THE BODY HUMAN NECESSITIES HYGIENE MASSAGE MEDICAL OR VETERINARY SCIENCE PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING ORSTIMULATING REFLEX POINTS IN THE BODY
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