Should I close off registers in rooms I don't use?
No, for several reasons, it’s a myth that doing this will save you any money.
Closing registers increases static pressure in duct systems and can actually increase the power consumed. This is especially the case if you have modern unit with a variable speed motor. It will see the fact you restricted the airflow and eat more power to increase the flow!
Closing registers can increase the temperature and freon pressures in your heat pump, this causes higher power consumption and the possibility of damaging the compressor. It’s like giving your unit a heart attack, and that’s very expensive to repair.
If you have a gas furnace, closing off the registers will cause it to run hotter. This can cause premature failure of heat exchangers over time, especially if your ductwork has any design challenges (as many are restrictive to begin with).
Should the outdoor coil on a heat pump be cleaned?
Chemical Cleaning of the outdoor coil on a heat pump will make sure it can grab the most heat from the outdoor temperature air when it’s cold. We can do this service for you after our seasonal safety check of your unit is complete.
Leaves and debris in your unit cost utility dollars to be wasted. Sludge, dirt, etc. in the bottom of your unit prevent water from the units defrost cycle to get out of the drain holes in the base pan of the outdoor unit.
How does ice and snow affect the outdoor coil on a heat pump?
It’s normal for heat pumps to ice up and also to go through the defrost cycle. As soon as your unit melts the ice and starts running the fan on top again, it sucks all that water right back up onto the coils and ices up again, and again, etc. Repeated defrosting is very expensive to your utility bills. As you can imagine, since it’s running as an air conditioner during defrost, your home is going to get very cold quickly. So to reduce the cold air coming out of your vents to a luke cool/warm temperature, your outdoor unit computer board turns on the auxiliary heaters to minimize your discomfort. As soon as the ice is melted the computer sees this and reverses the unit back to the heat mode! From an energy use standpoint defrost cycles generally consume from 50-90 amps of power for five minutes or so. This is very expensive and is the very reason we recommend and install the outdoor temperature sensing thermostats.
How can I save money heating my house during the winter?
Thermostats with outdoor temperature sensors can greatly reduce heating costs on heat pumps. If your heat pump has the proper amount of electric auxiliary heaters to handle your homes heating needs, you can actually switch the heat pump off when outdoor temps dip to the temperature where heat pumps just go in and out of defrost, and shut them off until it warms up.