How to Replace the Filter Kit on a ProTemp Heater

The filter kit consists of the air filters needed to keep dust and debris out of your heater's rotor. The kit contains the air filters for the rotor and a new filter gasket. The filters should be inspected often, and replaced when they show signs of dirt buildup. Clean filters allow for unrestricted air flow and better performance.

Let's get started.

REMOVING THE FILTER KIT   1. Safety first.

a. Disconnect the heater from its source of electricity.

b. Drain any excess fuel from the heater.

  2. Remove the top cover.

a. Remove the screws securing the top cover to the lower housing.

b. Lift the top cover away from the unit.

  3. Remove the fan guard.

a. Lift the fan guard away from the lower housing.

  4. Remove the filter housing.

a. Remove the (4) screws securing the rotor filter housing to the pump cover.

b. Remove the filter housing from the pump.

  5. Remove the air filters.

a. Remove the felt (triangular) filter and gasket from the filter housing.

b. Remove the foam (circular) filter from the filter housing.

c. Remove the small foam (square) filter from the pump cover.

INSTALLING THE NEW FILTER KIT

  6. Install the air filters.

a. Install the new foam (circular) filter into the filter housing.

b. Install the new felt (triangular) filter and gasket into the filter housing. The rubber gasket should face away from the filter housing.

c. Install the new small foam (square) filter onto the pump cover.

REASSEMBLING THE UNIT

  7. Reinstall the filter housing.

a. Thread the (4) screws into the filter housing. (This will help retain the gasket during installation.)

b. Install the filter housing onto the pump cover.

c. Secure the filter housing with the screws.

  8. Reinstall the fan guard.

a. Align the fan guard with the slots on the lower housing.

b. Press down firmly on the fan guard to seat it in the lower housing.

  9. Reinstall the top cover.

a. Install the top cover onto the lower housing.

b. Secure the top cover with the screws.