Replacement Pellet Burners for Oil, Wood and Coal Furnaces

Pellet burners can replace the heating component of most wood or coal boilers, and many oil fired furnaces. These units are easy to install, and in the case of an oil burning furnace, it is usually simple to arrange to swap out the pellet burning unit for the original burner.

These replacement heaters plug into the firebox and are fed by an auger from a nearby hopper. They function fully automatically, using the boiler or furnace control system and can be hooked up to a thermostat and timer.

Oil burning units are often fitted to the furnace door, and the best way to arrange a quick swap over is to get, ( or have made ), a replacement door and fit a pellet burner to it. This gives you the option, if you're going away for a while and unable to refill the hopper, to replace the oil burner in minutes.

Is My Boiler Suitable for Conversion?

There is normally no problem with coal or wood fired boilers. Replacing an oil burner has some extra considerations that need to be looked into.

In boilers, the flame mustn't contact firebox walls which have water on the other side - this could cause cracking. From the front of the burner to the back of the firebox should be more than twelve inches. It is possible to set a pellet burner back on a collar to reduce penetration into the firebox.

Clearance to the sides and the top of the firebox is usually two inches from the burner. These burners normally have a diameter of six inches, so your firebox should be ten inches wide.

You will need reasonable access to clear out the ash, and enough depth below the burner to allow an amount of ash to build up, cleaning the ash out once a week would be reasonable.

Flue channels should be sufficiently large so they they won't easily get filled with ash. Turbulators, ( metal inserts for the gas channels ), may be needed to improve the heat transfer efficiency.

A burner that has a high output relative to the size of the boiler will be inefficient because it will be stopping and starting too often. An output of half to three quarters of the rated capacity of the boiler works best.

Standard Burner Safety Features

Standard safety protection is a plastic drop pipe in the pellet feed which will fall away if it gets too hot, a flame monitor, automatic overheat burner shut-off and auger shut off.

PelletPro - Ulma Pellet Burner

Heat Output 40,000 - 70,000 btu./hr.
Efficiency 97.2%
Dimensions Outside boiler
Width 9.25 in.
Height 12 in.
Depth 13.5 in.
Dimensions Inside boiler
Hole Diameter 6.25 in.
Length 8.6 in
Weight 28 lbs.
Combustion Chamber Minimum dimensions
Depth 14 in.
Width 10 in.
Height 10 in
Warranty
One Year

PellX Pellet Burner

PellX 20

Heat Output 44,382 - 85,350 btu./hr
Efficiency 95%
Dimensions Outside boiler
Width 8.9 in.
Height 20.5 in.
Depth 15.4 in.
Dimensions Inside boiler
Hole Diameter 6.125 in.
Length 4.5 in.
Weight 33.07 lbs.
Combustion Chamber Minimum dimensions
Depth 13.7 in
Width 10 in.
Height 10 in.
Warranty
Two years on burner, control box and auger, one year on electrical components

PellX 35

Heat Output 102,420 - 136,560 btu./hr.
Efficiency 95%
Dimensions Outside boiler
Width 8.9 in.
Height 20.5 in.
Depth 15.4 in.
Dimensions Inside boiler
Hole Diameter 6.125 in.
Length 4.5 in.
Weight 35.27 lbs.
Combustion Chamber Minimum dimensions
Depth 13.7 in
Width 10 in.
Height 10 in.
Warranty
Two years on pellet burner, control box and auger, one year on electrical components

Web: PellXusa.com

Ecoheatsolutions - Swebo Pellet Burner

Ecoheat Solutions market a total package including the Swebo burner, boiler, pellet store and pellet transporting auger.

Heat Output 65,000 btu./hr.
Efficiency 92%
Dimensions Outside boiler
Width 8.7 in.
Height 9.85 in.
Depth 12 in.
Dimensions Inside boiler
Hole Diameter 6 in
Length 2 in.
Weight 26.5 lbs
Combustion Chamber Minimum dimensions
Depth 14 in.
Width 10 in.
Height 10 in.
Warranty

Web: Ecoheatsolutions.com