1. All designs use Flame Arrestor technology to prevent a back-flow or back draft of ignited vapors.
2. All flame arrestors are susceptible to lint, dust or oil (LDO) accumulation in harsh environments.
3. All water heaters must shut down before exceeding Carbon Monoxide (CO) limits to pass LDO testing.
4. All designs have a temperature sensor to shut down the water heater. An abnormal situation, creating a "shut down" condition, can be caused by the accumulation of LDO, ignition of flammable vapors, inadequate make-up air for combustion, or inadequate exhaust venting. These conditions (except for ignition of flammable vapors) can cause the burner flame to flatten out and increase the internal temperature of the water heaters' combustion chamber.
   

Apollo water heaters use C3 Technology™.

The key differentiating elements of the C3 Technology design beyond the competition are:

Only the Corderite Flame Arrestor is fireproof, will not retain or conduct heat, and will not warp!

The C3 Technology design incorporates a Corderite flame arrestor that has very low thermal conductive properties. It does not absorb heat and it will not warp.

The C3 Technology Flame Arrestor



Only C3 Technology water heaters feature a scientifically designed lint, dust and oil screen, which can be easily inspected and cleaned.

To prevent particles of lint, dust and oil from clogging the flame arrestor, C3 Technology water heaters are the only ones equipped with a removable LDO screen mounted in the combustion air inlet port at the bottom of the water heater. If LDO particles have accumulated, the screen can be easily removed and cleaned, using a soft cloth or warm soapy water.

The C3 Technology Air Intake Screen



C3 Technology Gas Water Heater design simplifies parts replacement.

C3 Technology gas water heaters feature a single, self-contained pilot burner assembly, which includes the thermocouple and the temperature sensor. If service or replacement is required, there's only one part to deal with, with no guesswork as to which component is causing the problem. C3 Technology is the most contractor friendly FVIR design on the market. And, of course, a design that saves the contractor time ultimately saves his customer money.

C3 Technology Gas Water Heaters are the only units that are Self-Resetting.

There are a number of conditions that can deprive a gas water heater of adequate make up air for combustion. These include improper installation, air exhaust situations from attic or other exhaust fans in operation, and LDO accumulation. These can prevent adequate make up air from reaching the burner in an "FVIR" gas water heater.

When such conditions occur, the C3 Technology temperature sensor is self-resetting. In other words if the sensor detects poor combustion conditions, it shuts down the water heater. Then, once the water heater has cooled down, the sensor automatically re-sets itself. This allows the water heater to be easily restarted, after the cause of poor combustion is corrected.


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