how long for heater to get warm

[gt_addict]

I thought covering the rad would decrease the airflow into the engine bay to aid a speedier warm up?

[winterheating]

What does the new focus have auto vents on the front grill for....

[winterheating]

The heat transfer from the rest of engine is going to be really really low, compared with a radiators heat transfer.

[Adam_84]

What about fitting an under tray to help keep the warm air around the engine with it venting out the back like most cars have? And a bonnet blanket

[winterheating]

Drive it normally straight off, so under normal load.
Check coolant levels correct,
Check thermostat isn't passing to rad straight away.
If all that is fine, possibly a slipping water pump.

[CHADVALLI]

Change Yellow cap on Expansion Tank