(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.
It's cold outside, but hotter than summer in our homes: Average thermostat is set at a toasty 23C and is cranking up bills. 1  One in 20 people has the thermostat turned up to 30C (86F). 2  18 per cent of those polled said they leave their heating on day and night. 3  Repair firm warns hothousing is hitting our pockets severely.