Small outdoor boilers

mtfallsmikey

Looking for a small OWB, like the Pro-Fab (mfd.in Canada). Small house, don't need one of the larger behemoths like most folks buy. Any input appreciated.

Eric Johnson

gasifier

I'd consider a gasifier. They burn a lot cleaner and are much more efficient. You need dry wood for most of them. There are several new outdoor models--more all the time as the smoke monsters get banned around the country.

Blue Forge is one. Adobe and Black Bear Boiler are others. New Horizon has a modified indoor rig that looks pretty cool:

http://www.newhorizoncorp.com

Joe Billow_6

Greenwood is another gasification unit, http://www.greenwoodfurnace.com/. Depending on your BTU need the profab ECB-200 is a outdoor gasification unit, but may be too big for your application.

Joe Billow

hot_rod

An AquaTherm

brand can be purchased unsheltered. This allows you to build your own enclosure. AquaTherms are pressurized OWF's.

The Royall from www.wdheat.com is a small size that could fit in a small enclosure. They sell it as a pressurized or non pressurized vessel. I had one at my home for a bit. Fairly small firebox, however.

One of the few that has an ASME listing (pressurized version) and UL if your insurance company needs that.

hot rod

mtfallsmikey

Hot Rod: Why did you...

Stop using the Royall?...look like it would fit my application well...also, has anyone used/seen the Ecoburn?

hot_rod

I'll still sell a Royall

I prefer the gasification units for efficiency, features and emissions.

With the small fire box it is sometimes hard to get a full day burn with the small Royall.

It is a nicely built unit. Heavy steel, nice door, great track record.

Central boiler had a nice pellet/ corn burner boiler at the FarmFest last week. They build their own feeder and control module in the US. It actually uses a small Lp tank for the ignition system. Fire tube boiler design.

Central claims they sold 12,500 OWF and boilers last year!

hot rod