Gerry's Mini Tube Steam System Boiler.

I wanted the best boiler for my system so I installed a Burnham IN3 model. This boiler has a vent damper and automatic ignition (no standing pilot light), so its about as efficient a steam boiler as I can get for gas fuel.

Boiler front view.

Front view of header.

Side view of 4'' header.

Equalizer drop pipe.

1'' brass takeoff pipe from the header.

This is the feed to the whole system. A standard system would probably be 3'' pipe.

Copper pipe is the pumped return water entering back into the boiler.

Side view of dropped header.

Pumped return throttle valve.