The Principle of Physics for Home Heating And Cooling in Bainbridge Island

Equipment for both residential heating and cooling in Bainbridge Island works on the same principle. Warm air always moves to a cooler space in the home. That’s true whether the home has a forced-air furnace, a boiler providing radiant heat, or a wood stove. It also is the way that central air conditioning works.

Central Air

Central AC removes heat from warm air by sending the air through return registers to the condenser. There, the warmth is cooled by liquid in a coil. A cool breeze then is sent back into the building through ducts and vents.

Forced-Air Furnaces

Furnaces bring cooler air to the appliance through return registers. The appliance then adds warmth with the use of a fuel such as natural gas or liquefied propane gas, commonly called LPG. As with central AC, the climate-controlled air is sent back through the vents.


Boilers heat the air directly as warmth emanates from radiators along the wall or tubes under the floor. In this system, the warmth is provided by hot water. The heat naturally moves to cooler spots in the room.

A Principle of Physics

These sources of residential heating and cooling in Bainbridge Island thus all follow a principle of physics about the way heat moves. The equipment is controlled by a thermostat with a temperature set by the household residents. Boiler heat is the most consistent, but most homes rely on forced-air furnaces.

All of this equipment can be installed, repaired and maintained by Quality Heating Electrical & AC, a contractor providing information at