ST 28 Controller for manually loaded solid fuel boilers twin pump.

This model varies fan speed to measure amount of air feeding the boiler.

One fan control.

Two temperature sensors.

Two pumps control.

Over temperature protection.

Intelligent programmer.

Simple to use, basic in operation.

Can be used in most solid fuel / multi fuel manually loaded boilers.

If you are unsure if this is the right product, please call or email.