When to Use  Continuous Pilot Ignition

In order to understand which mode to use, you must first understand what they mean. Continuous Pilot Ignition (CPI) means your pilot light stays on constantly, even when the fireplace main flame is not on. Intermittent Pilot Ignition (IPI), means your pilot is lit only on demand to ignite the main burner, right after you turn the fireplace on.

Based on outside temperature, moisture & chimney height it may be necessary to operate your unit on CPI mode in order to get your pilot light to light and stay lit.  CPI mode keeps the exhaust pipe slightly preheated.  As the warmed air naturally rises in the pipe it combats the heavy cold air.  When the IPI mode is used the main flame fumes may struggle to exit causing the system to choke on its own fumes. This happens when the main flame starts and dies several times within the first few minutes.  This can cause the main computer to go into a “lock-out” mode and the system may need to be reset.  If you are having problems with lighting your pilot light try switching the mode to CPI.

There are a few other benefits to using CPI vs. IPI mode.  In a power outage, your fireplace can still be started; electronic ignition systems require electricity to light the pilot. If the pilot is already lit you’ll be able to start your stove and heat your home.  CI may keep your chimney cap clear of snow. If it is snowing and your pilot light is on, the warmth from the pilot will melt the snow off your termination so it is not covered in snow.

Keeping your pilot on during the winter is the best way to ensure your fireplace will start right when you want it to and to reduce wear and tear on the unit.