Pool Heating System

Abstract

The pool heating system includes a pool containing a large volume of pool water and an associated building. The building having an attic space over a living space. A heat-exchanger is positioned outside of the living space of the building. The heat exchanger exchanges heat from the attic into pool water that is circulated through the heat exchanger. Any pool water that leaks from the heat-exchanger does not leak into or onto the living space.

1 . A pool heating system comprising:
 a pool containing a large volume of pool water;   a building with an attic space over a living space;   a heat exchanger outside of the living space of the building that exchanges heat from the attic into pool water that is circulated through the heat exchanger such that any pool water that leaks from the heat exchanger does not leak into or onto the living space.   
     
     
         2 . The system of  claim 1  wherein:
 the heat exchanger is an air-to-liquid heat exchanger.   
     
     
         3 . The system of  claim 2  further comprising:
 a fan to direct warm attic air over the heat exchanger.   
     
     
         4 . The system of  claim 2  wherein:
 the heat exchanger is located in a soffit of the attic outside of the living space of the building.   
     
     
         5 . The system of  claim 4  further comprising:
 a fan to direct attic air over the heat exchanger.   
     
     
         6 . The system of  claim 5  wherein:
 the fan is closely coupled to the heat exchanger.   
     
     
         7 . The system of  claim 1  wherein:
 the heat exchanger is a liquid-to-liquid heat exchanger.   
     
     
         8 . The system of  claim 7  further comprising:
 an air-to-liquid heat exchanger located in the attic space; and   a heat transfer liquid running between the air-to-liquid heat exchanger and the liquid-to-liquid heat exchanger such that only the heat transfer liquid would enter the attic space.   
     
     
         9 . A pool heating system comprising:
 a pool containing a large volume of water;   a building having a living space and an attic space, the attic space including soffit space that extends beyond the living space;   an air-to-liquid heat exchanger located in the soffit space of the attic;   a pump between the pool and the heat exchanger for pumping pool water through the heat exchanger.   
     
     
         10 . The system of  claim 9  further comprising:
 a fan in the attic to direct air towards the heat exchanger.   
     
     
         11 . The system of  claim 10  wherein:
 the fan is closely coupled to the heat exchanger.   
     
     
         12 . The system of  claim 10  wherein:
 the fan is spaced from the heat exchanger.   
     
     
         13 . The system of  claim 10  further comprising:
 duct work between the fan and the heat exchanger to direct attic air from the fan to the heat exchanger.   
     
     
         14 . A pool heating system comprising:
 a pool containing a large volume of water;   a building with a living space and an attic space over the living space;   heat pipes having a condensing section outside of the attic space and an evaporating section inside the attic space; and   a pump between the pool and the condensing section of the heat pipe for pumping water from the pool to the condensing section of the heat pipe.   
     
     
         15 . The system of  claim 14  further comprising:
 a fan in the attic space directing attic air over the evaporating section of the heat pipes.   
     
     
         16 . The system of  claim 15  wherein:
 the fan is closely coupled to the evaporating section of the heat pipe.