(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.
Most households can have the temperature set between 120ÂºF and 130ÂºF on their water heaters. If you are concerned about energy savings and reducing your monthly energy bill then set your heater temp to 120ÂºF and see if that is sufficient for your needs.