(Redirected from LBBB). Left bundle branch block (LBBB) is a cardiac conduction abnormality seen on the electrocardiogram (ECG). In this condition, activation of the left ventricle is delayed, which causes the left ventricle to contract later than the right ventricle.
For instance, in the winter, if you set the thermostat to 20Â°C (68Â°F), it will activate the heating system when the house temperature drops below 20Â°C and will shut the system off when the house air warms up past 20Â°C. A setback thermostat contains an electronic clock.
Although some manufacturers set water heater thermostats at 140ÂºF, most households usually only require them to be set at 120ÂºF, which also slows mineral buildup and corrosion in your water heater and pipes.Water heated at 140ÂºF also poses a safety hazardâscalding..) Find the current temperature. Measure the beginning temperature of your hot water using a thermometer at the tap farthest from the water heater. Thermostat dials are often inaccurate. 2.) Mark the setting, then turn down the thermostat.