Radon is a natural occurring by-product of decaying uranium within the earth. All buildings have some level of radon gas. The EPA reports that Radon is a cause of lung cancer. Contact a reputable inspection company that utilizes an EPA recommended procedure to collect and analyze the radon gas level in your building.For radon remediation where tests showed positive results for high radon levels, simple and inexpensive remediation solutions are available through reputable inspection companies.
When purchasing an air handler- looking into one with variable speeds can be a lot more efficient. Air conditioners with air handlers that don’t have variable speed option are always working at full blast- something which is not always necessary in the home. The speed options not only help save energy and electricity- but can also cut down on the noise production in the home. The variable speed air handler also keep the home at a more consistent temperature compared to other air handlers, promoting optimal comfort.
Use high efficiency filters that can handle large loads to save in filter change cost. Replacement of dirty filters is important in preventing filter collapse and restricted air flow. This will help maintain proper ventilation.
Humidity effects how warm you feel. Low humidity in the winter causes people to turn the heat up to achieve warmth. Increase the humidity to achieve warmth without turning up the heat. This will cost less than increasing the temperature. A good rule of thumb in cold weather is 50% humidity.
Hot Water Heater
Consider natural-gas on-demand or tankless water heaters. Researchers have found savings can be up to 30% compared with a standard natural-gas storage tank water heater.Consider installing a drain water waste heat recovery system. A recent DOE study showed energy savings of 25% to about 30% for water heating using such a system. Drain a quart of water from your water tank every 3 months to remove sediment that impedes heat transfer and lowers the efficiency of your heater. The type of water tank you have determines the steps to take, so follow the manufacturer’s advice. Lowering the thermostat on your water heater by 10ºF can save you between 3%–5% in energy costs. Most households only require a water heater thermostat setting of 120ºF, or even 115ºF.
Did you know that 85-90% of the energy from hot water is wasted when it goes down the drain? Install a drain-water heat recovery system to pre-heat new water using the heat from drained water.
Geothermal Heat Pump
Geothermal technologies are the most earth friendly of the renewable, sustainable programs and can yield 45% more energy than other green programs. State, federal, and possible rebates from DTE can help bring geothermal technologies into an affordable range.
Solar water heaters can be attached to the roof of a house. There are two options for the solar collectors with these systems- flat plates (30% efficiency) or evacuated tubes (40% efficiency). An indirect method should be used when there is a chance at cooler temperatures and freezing water becomes a concern- this involves a closed loop system with an intermediary fluid to help with the heat exchange. With no risk of freezing- the direct method where water is circulated and heated directly should be used.
Energy Efficient Valves
The correct valve in your piping systems can reduce pressure drop and allow for better operation.
Piping may not be considered “Green”; however the proper selection of piping, particularly in terms of size, can minimize energy loss and system problems associated with unnecessary pressure drop. Life cycle cost should be a factor when making decisions on piping material and sizing.
Building/Energy Management System (BMS)
Ductwork/Indoor Air Quality
Insulate heating ducts in unheated areas such as attics and crawlspaces and keep them in good repair to prevent heat loss of up to 60 percent at the registers. Having the ducts cleaned on a regular basis will reduce air flow resistance thereby providing better ventilation. Clean ducts also reduce transport of dirt, resulting in optimum indoor air quality.