Can You Direct Vent A Steam Boiler

In a two pipe system one pipe vents the products of combustion outside the building while the second pipe draws combustion air from outdoors.

Can you direct vent a steam boiler.

A direct vent gas boiler is a unit that includes a closed horizontal piping system that goes through a side wall right to the outside for exhaust and intake air. Heat that is typically lost in the chimney can be extracted in the heating appliance dropping the gross stack temperature to 300 f 350 f. Measure from the direct exhaust vent on top of or on the side of your boiler to the chimney or wall to determine the cast iron pipe vent length. Today there many boilers of this type available on the modern market.

Use your roof chimney to vent your gas fired boiler. If you have natural gas available a gas fired boiler would be fine but if you have to use propane i would certainly stay with oil. Cut the vent hole. The question is whether they re worth your attention.

Direct exhaust venting draws combustion air from the utility room or boiler room around the heating appliance and vents appliance exhaust out through a building sidewall or through the roof using an approved or listed b vent metal chimney or similar materials. This is essential in creating an air tight combustion system. 383500350 19 buy this write a review. Weil mclain 3 concentric vent kit pvc for weil mclain wm97 eco gv90 ultra 80 ultra 105 and ultra 155 hot water boilers mpn.

If you have no chimney drill a vent through an exterior wall. In the direct vented system flue gases are not cooled in a chimney. I know of no steam boilers which can be direct vented. In addition to the four vent categories many boiler manufacturers offer specialized vent systems.

This raises the steady state efficiency. Any can be power vented safely. Burnham s new megasteam is probably the highest efficiency oil fired steamer available.