How do I control the outlet temperature on my Instrument Gas Heater?

Ther are three options for temperature control on an Instrument Gas Heater.

Catco recommends our Steady Heat Controller, which mixes a hot and cold stream of gas to provide a constant outlet temperature around 135° F. This is warm enough to prevent freezing, but below the temperature that would damage most equipment.

Another method is using a thermostat. A probe is placed on the tubing to sense the temperature of the gas. Once it gets higher than the set point, a valve reduces the fuel input to the heater by about half. Then once the gas temperature drops, the heater returns to full power.

The final option is the turndown valve. It operates the same way as the thermostat, but manually. When the valve is in the closed position, it cuts the fuel input to the heater by about half. Open the valve to give the heater full fuel.