What Do I Set My Thermostat At To Really feel Cool?

75° F & < 60% Humidity

Within the information today you can find vitality corporations asking home-owner to maintain their thermostats 78° and up. Should you put your thermostat at 78° and don’t really feel snug, why is that? Humidity! Most individuals really feel hotter when the humidity is excessive (above ~55%) Most air conditioners run a drag race, that means the activate and “ground it” operating at 100% till they cycle off once more. (newer, hi-tech, hi-efficiency, greater price gear solves this problem) These techniques involved themselves with decreasing temperature with decreasing humidity as a secondary consideration. In Florida now we have to take the “It’s the humidity, silly!” standpoint and think about dehumidification as the first perform of an ac system. The worst half is (if you’re married you recognize this) one particular person can really feel snug whereas the opposite is freezing (or burning up). Extra management of your indoor setting requires a better funding. In the long run it’s important to steadiness your gear buy, your vitality invoice, and your consolation.

68° – The Hazard Zone

The refrigerant in an air conditioner must be a lot cooler than the specified indoor temperature. When a home-owner units their thermostat to 68° the inner system temps have to return perilously near the freeze level and unhealthy issues begin to occur. The low temperature could cause icing up making every little thing even colder. The contracted quantity of fuel within the system could cause the compressor to start out pumping its oil into the system plugging the coil and ravenous the compressor of lubrication. Fashionable air conditioners are designed to take care of a 50° coil whereas outputting air cooled 20° beneath the incoming air. A 68° room temperature upsets that steadiness and forces the indoor coil to dip beneath the manufacturing unit designed temperature. (a number of the newer hi-tech techniques have logic to try address these conditions).

ACCA Handbook J.

The IECC regulates the indoor design temperature to be used in performing load calculations. The IECC specifies that the minimal cooling temperature shall be 75°F. Desk IA of ACCA Handbook J requires that the outside winter and summer season design temperatures be primarily based on the 1 p.c worth for summer season. In areas the place humidity is a matter (Florida!), an outsized system will degrade the humidity management. A correctly sized system will run nearly repeatedly at design circumstances, and supply the correct stage of dehumidification throughout the cooling season. (if you’d like your ac system to chill below 75 levels on a sizzling summer season day, your system must be over-sized. In Florida, over-sized techniques have large issues with humidity management (you WILL want a supplemental dehumidifier) particularly on the times the outside temperature is a number of levels beneath the summer season highs. Additionally anticipate descreased system lifespan on account of quick biking.)