Rolling Boil on Wort.

[BlightyBrewer]

My Brupaks boiler took about 1 hour from cold for approx 5.5 Imperial Gallons.

 

[Orfy]

Test Driving Blighty?

Don't forget you're going to be going from sparge temps rather than cold.

 

[Bernie Brewer]

Build yourself a heatstick or two- Here's how:

www.cedarcreeknetworks.com/heatstick.htm

Whether added to your stove or propane burner, it really speeds up boiling time.