Passive Heating & Air Conditioning

​Passive Heating & Air Conditioning

We all know that the sun's rays heat things up.
We know heat rises.

When you are designing a house you can take advantage of these features.  Let the sun give you heat.  Let natural air flow and shade keep you cool.

When we design a new house or remodel an existing house we take the time to design things to make your house more comfortable.  We can help you minimize or avoid the use of air conditioning.  This certainly reduces your energy costs and also by keeping a natural flow to the air, we can bring you comfort, rather than spending money to pump artificially heated and cooled air in your house.

We have lots of tools available to us in doing this.  We know the precise angle that the sun will shine at you for any hour of any day, in any season.  We can shade a window from sun we don't need in the hot summer when the sun is high in the sky, and we can let that low angle sun in the winter come in and heat up features in the house.

We can design the roof overhang, size and locate the windows and also use materials that hold heat like tile, stucco and concrete.

By locating operable windows and vents we can take advantage of the prevailing breeze and natural convection currents in letting hot air out, and let that air flow suck cooler air in.

​There are semi-active systems of storing heat or cooling a mass.  We can use systems that enhance or minimally utilize energy to help cool air, store heat, etc.  There are many natural systems and features we can take advantage of to make your house more comfortable and use less energy.

Many people prefer fresh air over that of a sealed house with air conditioning.  For dealing with heating and air conditioning it also makes sense to introduce fresh air.  Utilizing a heat exchanger we can vent stale air, but capture the heat or cooling from the outgoing air and pre-heat or pre-cool the incoming air so that we can have an efficient system.  We don't have to use the air conditioner cool hot outside air all the way from the exterior temperature to the desired cool temperature.  We can duct that hot fresh air into the heat exchanger and let the outgoing stale cool air pre-cool the incoming air inside the heat exchanger to make the whole system more efficient.

By understanding and controlling air flow in an intelligent manner we can help keep your house comfortable and keep the costs in check.