Solid Fuel Boiler of the Forward Series

The facility is aimed at heating houses, cottages and administration and accommodation buildings, equipped with forced or gravity hot water heating.

Learn More

Description

Description

The facility is aimed at heating houses, cottages and administration and accommodation buildings, equipped with forced or gravity hot water heating.

Lemax steel heating units of the Forward series are represented by three models: 12,5, 16 and 20 kWt.

Run at firm fuel: brown coal, coal, coke. Wood can be used as additional fuel. High environmental friendliness when burning fuel.

The compact, shock-resistant heat exchanger, with its safety being ensured by use of heat-insulating materials.

High-quality 4 mm special steel by the Magnitogorsk Iron and Steel Works and heat-resistant fire-bar made of high quality grey cast iron contribute to the durability of the boiler, which easily endures temperature falls and rises.

The heat-resistant coating of the heat exchanger and its being covered by inhibiting composition of internal cavities of the boiler increase the resistance to corrosion.

The boiler features high efficiency provided due to an innovative design of the combustion chamber with horizontal elements of heat selection.

Top charging system does not only provide comfortable charging from the bucket, but also allows uniform distribution inside the fuel bowl. For front charging system (through the door) heating units, especially the multisectional ones with a long heat exchanger uniform fuel distribution inside the fuel bowl takes extra time and effort.

The round flue of 140 mm convenient for connection will deliver from the necessity of adapters selection.

It can be equipped with the non-volatile regulator of draft (air supply).

The connection between the wall sides of the water jacket has been increased due to the channel bars, thus enhancing the heat exchanger resistance to shattering and increases the durability of the heating unit.

3 years of postproduction quality service.

Parameter		Forward-12,5	Forward-16	Forward-20
Rated heat output, kWh	coal	13	17	21
Rated heat output, kWh	firewood	12,5	16	20
Water maximum working pressure		0,2
Outlet water maximum temperature, no more than, t		95
Approximate fuel consumrtion - coke, anthracite (27500-32000 kJ/kg), kg/h		1,8	2,6	3,1
Approximate fuel consumrtion - coal (17000-27000 kJ/kg), kg/h		2,7	3,5	4,5
Efficiency coefficiency with coal, no less than, %		75-80
Approximate fuel consumrtion - wood, (moisture content no more than 15%), kg/h		4,2	5,5	7
Efficiency coefficiency with wood, no less than, %		72-77
Heat exchange unit capacity, l		22,5	24	26,5
Boiler negative pressure rarefaction, Pa		4-25
Outlet combustion products temperature, °C		110
Chimney diameter, mm		140	140	150
The diameter of the fitted pipes, dm		2”
Hydraulic resistance, no more than, kgs/сm²		0,09
Boiler capacity regalation range, when burning anthracite should not exceed the limits, %		50-110
Heat turnover area, m²		1,07	1,16	1,25
Running cycle duration, when burning anthracite, no less than, h		12
Dimensions, no more than, mm	height	892	892	892
	width	365	365	400
	depth	570	570	580
Mass, no more than, kg		70	73	78

Back to the list