Freez-Fiter Plus+
America's Favorite Pilot Heater
Now Provides:
• Higher accuracy
• Updated features
• Customization to your needs!

Transmission and distribution companies, and public utilities have trusted
Freez-Fiter pilot heater units from Bruest for more than 30 years.
Now, there are even more reasons to specify the field-proven
performance of genuine Freez-Fiter heaters.
Advantages of the Freez-Fiter Plus Pilot Heater
- The Freez-Fiter Plus pilot heater has been re-engineered for greater
airflow efficiency, and more uniform temperature control.
- New 6" enclosure has the same convenient O.D. (12" X 12") and uses
the same R8 2500 BTU heater, but the case is now 6" deep for significantly
greater airflow performance.
- Single or double coil serpentines are 3/8" stainless steel, and have 2500 lbs.
of maximum working pressure. They are tested to 5000 lbs.
- Bulk heads have been re-engineered, and all high pressure connections
are external: there are no high-pressure connections inside the enclosure.
- The low pressure regulator is a standard 912, (BelGas or Fisher).
These direct-operated, spring-loaded regulators have limited-capacity
external relief across the diaphragm to minimize over-pressure.
Using natural gas, they have a 50 psi maximum inlet. The outlet is
3.5" w.c. to operate the Freez-Fiter.
- The Mertek thermostatic gas valve replaces the older thermostat
and Baso valve. Both the gas valve and safety valve are CSA and
FM approved.
- For greatest safety and convenience, a shutoff valve turns the gas off
on the fuel inlet entering the heater.
- All pilot heater units have a preheat fuel tube, which prevents
high pressure regulator freeze-up.
- A filter on the low side of the fuel inlet slows the moisture and debris
and prevents it from entering the heater. This filter also extends the
service life of the pad.
- Freez-Fiter Plus units have a 0-15" w.c. gauge, easily visible from the front.
- Freez-Fiter pilot heater units have a new rain-bill feature that protects the
unit from rainwater.
- Every unit is leak-tested and pressure-checked in the Bruest lab.
- Heater is Class 1, Division 1 and 2, Group D approved. (CSA and FM)
- Freez-Fiter works well in a high pressure or low pressure setting,
AND costs less than competitive devices that only work well on
high pressure gas. Freez-Fiter is also easier to install, requiring
less pipe, fittings and regulators.
Options for the Freez-Fiter Plus pilot heater include a 12 volt or 120 volt design and
several types of high pressure regulators. A larger unit, 16"X16", with an
R12 5000 BTU heater is also available.
Freez-Fiter Plus is a field-proven pilot heater backed by Bruest,
the nation's most respected provider of heating systems for gas transmission and distribution lines, and utilities.
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