Below is an example of a suggested system for a customer. If you are interested in changing the environment in which you live, we highly suggest you contact us and experience a radical difference in the quality of the air you breathe.

We are recommending radiant floor heating on the basement and the main floor level, and forced air heating and cooling on the main level and the top floor level. To provide a method of controlling the humidity , we recommend integrating the whole house ventilation system, with the duct system serving the whole house.

The heating will be accomplished by installing a water-to-water geothermal heat pump to extract the heat from the horizontal geo exchange ground loop, and storing the heat in an 80-gallon water-storage tank located in the basement. The heated water will be circulated through the radiant floor piping or through a blower coil unit located in the house, whenever any zone calls for heat. The cooling will be accomplished by chilling another 80-gallon tank of water to approx. 45 degrees f., and circulating it through the blower coil unit, and blowing cold air through a duct system ducted to each area needing cooling during the cooling season.

The duct system will be located in the basement level, along with the water-to-water geo exchange unit and the blower coil unit. The water storage tanks will also be located in the basement. The blower coil unit should be located as near as possible to the center of the basement to allow a smaller duct system and require less energy to circulate the air required to cool the house. The heat recovery ventilation unit will extract stale air from each bathroom, utility room and master bedroom and draw in an equal amount of fresh air, passing through a high-efficiency heat exchanger, transferring the heat leaving the house into the fresh air being drawn into the house. The fresh air entering the house through the HRV unit will be ducted into the return air section of the geo exchange blower coil unit and circulated throughout the entire house via the air distribution system.

The fresh outdoor air being drawn into the house through the heat recovery ventilation unit will be filtered four times before being mixed with the indoor air. The air will first pass through a foam filter inside the HRV unit, next will pass through an electronic air filter mounted on the geo exchange blower coil unit, next through an electrostatic air filter also mounted on the geo exchange blower coil unit and finally will be circulated past an ultra violet emitter to control the microbial contaminants in the air.

By circulating the indoor air continuously, the indoor air is continuously filtered, checked for humidity content, and diluted with fresh outdoor air containing a higher percentage of oxygen, therefore furnishing a very high-quality indoor environment.

The blower motor in the blower coil unit will be an ECM motor, electronically controlled to offer a variable speed, very efficient, very quiet air circulation option. We have sized the HRV and the humidifier to maintain the indoor humidity between 40% and 55%, which is healthy for humans, but will not allow the growth of molds, mildew, spores, viruses, and bacteria.

Our standard duct system consists of round steel spiral main trunklines with insulated flexible branch ducts, minimum six-foot section at each register boot to assure a very quiet operation of the system.

We also use flexible connectors at the supply and return air plenums connected to the blower coil unit to eliminate vibration being transferred to the duct system. All connections and seams in the duct system are sealed with an environmentally friendly mastic to eliminate air leaks in the duct system. All floor registers are aluminum floor perimeter type commercial grade very attractive style.

All return air grilles are white painted aluminum unless otherwise specified by the owner. Our standard thermostat is Honeywell PC8900, 7-day programmable, which controls the heating, cooling, humidity, and heat recovery ventilation unit. All functions are programmable for daytime, nighttime setback and can provide automatic control of the five different HRV fan settings.

It is very important to collect approximately 50% of the return air at the highest point in the house and approx. 50% at the lowest point in the house to assure accurate control of the air temperature, humidity content, air filtering capability, and overall quality of the indoor air. Please call me if I can be of further assistance to you.