Keith9534

Regardless to the mediums where the heat is held? ( doesn`t sound correct but only way to describe it ) Would the cooler item eventually reach the same temperature as the hotter item under these circumstances?

Hi Hopefully there is a simple scientific answer to my question? I`m trying to work out the most efficient way to run my spa. The water is contained in an insulated plastic enclosure like a paddling pool. There is a top insulated cover. The water is heated by an electric element and pump which circulates the water. The pump/heater can take the water from 16c to 40c in about 5 hours. The whole thing is inside a room which has been designed to maximise solar gain - so much so it recorded 49c as a maximum last year and regularly stays between 38-45c for about 6 hours a day with no mechanical help. There are no drafts in the room and its well insulated and can hold temperature well. Is it beneficial to take the top cover off during the heating cycle while the room temperature is higher than the water temperature? Any help greatly appreciated.